Encountering a fault code on your Ford vehicle can be perplexing. The অন-board diagnostics system, or OBD2, is designed to alert you to potential issues, but understanding these codes is crucial for effective vehicle maintenance and repair. This guide serves as an extensive resource for deciphering Ford OBD2 fault codes, empowering you with the knowledge to diagnose problems and seek appropriate solutions.
Understanding OBD2 systems is the first step in tackling any fault code. Modern vehicles, including Ford models, utilize a sophisticated network of sensors and computers to monitor various systems, from the engine and transmission to emissions and braking. When the system detects an anomaly outside of normal parameters, it triggers a fault code, which is stored in the vehicle’s computer and often illuminates the “Check Engine” light on your dashboard.
These fault codes are standardized across the automotive industry, but manufacturers like Ford may have specific codes and interpretations. This guide provides a detailed list of Ford-specific OBD2 fault codes, offering potential causes and troubleshooting steps. While this information is invaluable for preliminary diagnosis, remember that accurate diagnosis and repair often require professional expertise and specialized tools.
Navigating this extensive list of codes can seem daunting, but each code provides a clue to a potential problem. Codes are typically alphanumeric, starting with a letter indicating the system affected:
- P – Powertrain (Engine, Transmission)
- B – Body (Interior and Exterior components)
- C – Chassis (Braking, Steering, Suspension)
- U – Network or Undefined (Communication issues)
The subsequent numbers and letters provide further specificity, pinpointing the subsystem and the nature of the fault. By carefully reviewing the code and its description, you can begin to understand the potential area of concern in your Ford vehicle.
This guide aims to be more than just a simple translation of the original Spanish fault code list. It is designed to be a more user-friendly and SEO-optimized resource for English-speaking Ford owners and automotive enthusiasts. We have focused on clarity, accuracy, and comprehensive coverage, ensuring this guide is a valuable tool in understanding and resolving Ford OBD2 fault codes.
Remember, while this guide can help you understand potential issues indicated by Ford OBD2 fault codes, it is not a substitute for professional diagnosis and repair. Always consult with a certified mechanic for accurate diagnosis and to carry out necessary repairs. Using this guide in conjunction with professional advice will help keep your Ford vehicle running smoothly and efficiently.
| Fault Code | Fault Description | Possible Causes |
|---|---|---|
| B1213 | Immobilizer – Number of keys programmed below minimum limit | Program additional key(s) |
| B1232 | Immobilizer transceiver coil not connected | Wiring, immobilizer transceiver coil |
| B1342 | Engine control module | Engine control module |
| B1600 | Immobilizer – Transponder signal not received | Incorrect/damaged key, wiring, immobilizer transceiver coil |
| B1601 | Immobilizer – Incorrect transponder signal | Incorrect/damaged key, incorrect programming, wiring, immobilizer transceiver coil |
| B1602 | Immobilizer – Incorrect transponder signal | Incorrect/damaged key, incorrect programming, wiring, immobilizer transceiver coil |
| B1681 | Immobilizer transceiver coil – Signal not received | Wiring, immobilizer transceiver coil |
| B2103 | Immobilizer transceiver coil not connected | Disconnected multi-connector, poor connection, wiring, immobilizer transceiver coil |
| B2139 | Immobilizer – Passive anti-theft system signal not recognized | Incorrect programming |
| B2141 | Immobilizer – Engine control module information not communicated | Incorrect programming |
| B2431 | Immobilizer – Transponder programming fault | Incorrect programming |
| C1160 | Transfer case – Control circuit faulty | – |
| C1728 | Transfer case, model variant selection – 2H/4H | Wiring, transfer case control module, transfer case low/high range shift motor |
| C1729 | Transfer case, model variant selection – 4H/4L | Wiring, transfer case control module, transfer case low/high range shift motor |
| C1970 | Four-wheel drive, 4×4 low range switch – Short circuit to positive | Wiring, low/high range switch |
| C1971 | Four-wheel drive, 4×4 low range switch – Circuit malfunction | Wiring, low/high range switch |
| C1979 | Four-wheel drive hub lock solenoid – Circuit malfunction | Wiring, four-wheel drive hub lock solenoid, blocked/leaking hoses |
| C1980 | Four-wheel drive hub lock solenoid – Circuit malfunction | Wiring, four-wheel drive hub lock solenoid, blocked/leaking hoses |
| P0167 | Fuel trim error (1.8 D) | Wiring, crankshaft position sensor, injector needle lift sensor, injection pump, injection pump control module, engine control module |
| P1000 | System readiness test not complete | – |
| P1001 | System diagnosis incomplete | – |
| P1002 | Fuel shut-off valve C – Control circuit open | Wiring, fuel shut-off valve |
| P1003 | Fuel shut-off valve C – Control circuit low signal | Wiring, fuel shut-off valve |
| P1004 | Fuel shut-off valve C – Control circuit high signal | Wiring, fuel shut-off valve |
| P1005 | Fuel shut-off valve D – Control circuit open | Wiring, fuel shut-off valve |
| P1006 | Fuel shut-off valve D – Control circuit low signal | Wiring, fuel shut-off valve |
| P1007 | Fuel shut-off valve D – Control circuit high signal | Wiring, fuel shut-off valve |
| P1008 | Torque monitoring – Torque reduction | – |
| P100B | Gas rail pressure sensor B – Malfunction | Wiring, gas rail pressure sensor |
| P100C | Gas rail pressure sensor B – Signal low | Wiring, gas rail pressure sensor |
| P100D | Gas rail pressure sensor B – Signal high | Wiring, gas rail pressure sensor |
| P101B | Gas rail temperature sensor B – Malfunction/range | Wiring, gas rail temperature sensor |
| P101C | Gas rail temperature sensor B – Signal low | Wiring, gas rail temperature sensor |
| P101D | Gas rail temperature sensor B – Signal high | Wiring, gas rail temperature sensor |
| P1100 | Mass air flow sensor – Intermittent circuit interruption | Wiring, mass air flow sensor |
| P1101 | Mass air flow sensor – Out of self-test range | Wiring, mass air flow sensor |
| P1102 | Mass air flow sensor – Malfunction/range | Wiring, mass air flow sensor |
| P1103 | Mass air flow sensor – Malfunction/range | Wiring, mass air flow sensor |
| P1104 | Mass air flow sensor – Ground circuit fault | Wiring, poor connection, mass air flow sensor |
| P1105 | Alternator – Incorrect operation | – |
| P1106 | Alternator – Incorrect operation | – |
| P1107 | Alternator – Circuit faulty | – |
| P1108 | Alternator warning light – Circuit faulty | – |
| P1109 | Intake air temperature sensor 2 – Intermittent circuit interruption | Wiring, intake air temperature sensor |
| P1110 | Intake air temperature sensor C/D – Circuit open/short circuit | Wiring, poor connection, intake air temperature sensor |
| P1111 | System entry | – |
| P1112 | Intake air temperature sensor – Intermittent circuit interruption | Wiring, intake air temperature sensor |
| P1113 | Intake air temperature sensor C/L – Circuit open/short circuit | Wiring, poor connection, intake air temperature sensor |
| P1114 | Intake air temperature sensor 2 – Signal low – engines with turbocharger/supercharger | – |
| P1115 | Intake air temperature sensor 2 – Signal high – engines with turbocharger/supercharger | Wiring, intake air temperature sensor |
| P1116 | Engine coolant temperature sensor – Out of self-test range | Wiring, engine coolant temperature sensor |
| P1117 | Engine coolant temperature sensor – Intermittent circuit interruption | Wiring, engine coolant temperature sensor |
| P1118 | Manifold air temperature sensor – Signal low | Wiring, manifold air temperature sensor, engine control module |
| P1119 | Manifold air temperature sensor – Signal high | Wiring, manifold air temperature sensor, engine control module |
| P111A | Engine coolant temperature sensor – Temperature too high – forced limited power mode | Wiring, coolant system, engine coolant temperature sensor |
| P1120 | Throttle position sensor – Out of range, signal low | Wiring, throttle position sensor |
| P1121 | Throttle position sensor – Inconsistent with mass air flow sensor/manifold absolute pressure sensor signal | Wiring, mass air flow/manifold absolute pressure/throttle position sensors |
| P1122 | Accelerator pedal position sensor A – Signal low | Wiring, accelerator pedal position sensor, engine control module |
| P1123 | Accelerator pedal position sensor A – Signal high | Wiring, accelerator pedal position sensor, engine control module |
| P1124 | Throttle position sensor – Out of self-test range | Wiring, throttle position sensor |
| P1125 | Throttle position sensor – Intermittent circuit interruption | Wiring, throttle position sensor |
| P1126 | Throttle position sensor – Circuit faulty | Wiring, throttle position sensor |
| P1127 | Exhaust gas temperature, out of range – oxygen sensor tests not complete | Exhaust system leak, mechanical fault |
| P1128 | Heated oxygen sensor 1 – Transposed | Wiring |
| P1129 | Heated oxygen sensor 2 – Transposed | Wiring |
| P1130 | Heated oxygen sensor – Injection regulation at limit | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1131 | Heated oxygen sensor – No switching, lean mixture for injection regulation | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1132 | Heated oxygen sensor – No switching, rich mixture for injection regulation | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1133 | Lean mixture for injection regulation – Block 1 | Fuel pressure, injectors, mass air flow sensor/manifold absolute pressure sensor, intake system leak |
| P1134 | Rich mixture for injection regulation – Block 1 | Fuel pressure, injectors, mass air flow sensor/manifold absolute pressure sensor, evaporative emission system |
| P1135 | Accelerator pedal position sensor A – Intermittent circuit interruption | Wiring, accelerator pedal position sensor, engine control module |
| P1136 | Module cooling fan – Circuit faulty | Wiring, module cooling fan |
| P1137 | Heated oxygen sensor 1, block 2 – Activity not detected, lean mixture | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1138 | Heated oxygen sensor 1, block 2 – Activity not detected, rich mixture | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1139 | Water in fuel filter warning light – Circuit faulty | Wiring, water in fuel filter warning light |
| P1140 | Water in fuel system | Water in fuel system |
| P1141 | Low fuel flow warning light – Circuit faulty | Wiring, low fuel flow warning light |
| P1142 | Fuel restriction | Blocked fuel filter |
| P1143 | Air assisted injector air control valve – Incorrect operation | – |
| P1144 | Air assisted injector air control valve – Incorrect operation | – |
| P1145 | Calculated torque error | – |
| P1147 | Manifold air temperature sensor/intake air temperature sensor – Correlation | Wiring, manifold air temperature sensor, intake air temperature sensor |
| P1148 | Alternator 2 – Control circuit | Wiring, alternator |
| P1149 | Alternator 2, monitoring – High voltage | Wiring, alternator |
| P1150 | Heated oxygen sensor – No switching, injection regulation at limit | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1151 | Heated oxygen sensor – No switching, sensor indicates lean mixture | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1152 | Heated oxygen sensor – No switching, sensor indicates rich mixture | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1153 | Lean mixture for injection regulation – Block 2 | Fuel pressure, injectors, mass air flow sensor/manifold absolute pressure sensor, intake system leak |
| P1154 | Rich mixture for injection regulation – Block 2 | Fuel pressure, injectors, mass air flow sensor/manifold absolute pressure sensor, evaporative emission system |
| P1155 | Malfunction indicator light activated by alternative fuel control module | – |
| P1156 | Fuel selection switch – Circuit faulty | Wiring, fuel selection switch |
| P1157 | Heated oxygen sensor 2, block 2 – Activity not detected, lean mixture | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1158 | Heated oxygen sensor 2, block 2 – Activity not detected, rich mixture | Intake/fuel system, injectors, heated oxygen sensor, mass air flow sensor, engine coolant temperature sensor |
| P1159 | Fuel system stepper motor | Wiring, fuel system stepper motor |
| P115A | Fuel level low – Forced limited power mode | Fuel level low |
| P115B | Fuel level low – Forced engine stop mode | Fuel level low |
| P115C | Transmission control module, operator error – Forced engine stop mode | Transmission control module |
| P115D | Mass air flow sensor – Circuit deviation | Wiring, mass air flow sensor |
| P115E | Throttle control unit – Air flow adaptation upper limit reached | Wiring, throttle control unit |
| P1167 | Test invalid – throttle not actuated or actuated too late | – |
| P1168 | Fuel rail pressure sensor – Malfunction/range | Wiring, fuel rail pressure sensor |
| P1169 | Fuel rail pressure sensor – Malfunction/range | Wiring, fuel rail pressure sensor |
| P116A | Fuel system stepper motor control 1 – Circuit open | Wiring, fuel system stepper motor control |
| P116B | Fuel system stepper motor control 1 – Short circuit | Wiring, fuel system stepper motor control |
| P116C | Fuel system stepper motor control 2 – Circuit open | Wiring, fuel system stepper motor control |
| P116D | Fuel system stepper motor control 2 – Short circuit | Wiring, fuel system stepper motor control |
| P116E | Fuel pressure relief system activated | – |
| P116F | Fuel flow control valve – Control limit exceeded | Fuel flow control valve |
| P1170 | Fuel shut-off solenoid | Wiring, fuel shut-off solenoid |
| P1171 | Injection pump rotor position sensor | Wiring, injection pump rotor position sensor, engine control module |
| P1172 | Injection pump rotor position sensor/fuel quantity regulator – Excess fuel | Wiring, injection pump rotor position sensor, fuel quantity regulator, engine control module |
| P1173 | Injection pump rotor position sensor | Wiring, injection pump rotor position sensor, engine control module |
| P1174 | Injection pump cam ring position sensor | Wiring, injection pump rotor position sensor, engine control module |
| P1175 | Injection timing solenoid | Wiring, restricted fuel supply, dirty fuel, injection timing solenoid, engine control module |
| P1176 | Injection pump cam ring position sensor | Wiring, injection pump cam ring position sensor, engine control module |
| P1177 | Injection pump position sensor | Wiring, injection pump position sensor, engine control module |
| P1178 | Injection pump position sensor | Wiring, incorrect injection pump mounting, injection pump position sensor, engine control module |
| P117A | Engine oil, overheating – Forced limited power mode | Wiring, engine oil temperature sensor, engine oil |
| P117B | Exhaust gas temperature sensor, block 1 – Correlation | Wiring, exhaust gas temperature sensor |
| P117C | Exhaust gas temperature sensor, block 2 – Correlation | Wiring, exhaust gas temperature sensor |
| P117D | Fuel flow control valve – Control limit exceeded | Fuel flow control valve |
| P117E | Fuel flow control valve – Control limit exceeded | Fuel flow control valve |
| P117F | Fuel pressure regulator control solenoid – Control limit exceeded | Fuel pressure regulator control solenoid |
| P1180 | Fuel supply system – Low pressure | Blocked fuel filter, restricted supply lines |
| P1181 | Fuel supply system – High pressure | Fuel pressure regulator |
| P1182 | Fuel shut-off solenoid – Incorrect operation | – |
| P1183 | Engine oil temperature sensor – Circuit faulty | Wiring, engine oil temperature sensor |
| P1184 | Engine oil temperature sensor – Out of self-test range | Wiring, engine oil temperature sensor |
| P1185 | Fuel pump temperature sensor – High voltage | Wiring, fuel pump temperature sensor |
| P1186 | Fuel pump temperature sensor – Low voltage | Wiring, fuel pump temperature sensor |
| P1187 | Model variant selection | Incorrect engine control module coding |
| P1188 | Calibration memory | – |
| P1189 | Injection pump speed signal | Wiring, injection pump speed sensor, engine control module |
| P1190 | Calibration resistor out of range | Wiring, calibration resistor |
| P1191 | Engine control relay | Wiring, engine control relay |
| P1192 | Engine control relay | Wiring, engine control relay |
| P1193 | Exhaust gas recirculation valve/solenoid, controller fault – Circuit faulty | Wiring, exhaust gas recirculation valve/solenoid, engine control module |
| P1194 | Engine control module, analog/digital converter | Engine control module |
| P1195 | Data transmission fault | Engine control module |
| P1196 | Engine control module – Supply voltage high | Wiring, alternator |
| P1197 | Engine control module – Supply voltage low | Wiring, fuses, alternator, engine control relay |
| P1198 | Injection pump rotor position sensor/fuel quantity regulator – Insufficient fuel | Wiring, dirty fuel, blocked fuel filter, restricted fuel lines, injection pump rotor position sensor, fuel quantity regulator, engine control module |
| P1199 | Fuel level sensor – Signal low | Wiring, fuel level sensor |
| P1200 | Injector – Circuit malfunction/range | Wiring, injector, engine control module |
| P1201 | Injector 1 – Circuit open/short circuit | Wiring, injector, engine control module |
| P1202 | Injector 2 – Circuit open/short circuit | Wiring, injector, engine control module |
| P1203 | Injector 3 – Circuit open/short circuit | Wiring, injector, engine control module |
| P1204 | Injector 4 – Circuit open/short circuit | Wiring, injector, engine control module |
| P1205 | Injector 5 – Circuit open/short circuit | Wiring, injector |
| P1206 | Injector 6 – Circuit open/short circuit | Wiring, injector |
| P1209 | Injector control pressure – Test anomaly | Wiring, injector, engine control module |
| P120A | Secondary fuel injector, block 1 – Insufficient flow detected | Wiring, fuel injector, engine control module |
| P120B | Secondary fuel injector, block 1 – Excessive flow detected | Wiring, fuel injector, engine control module |
| P120C | Secondary fuel injector, block 2 – Insufficient flow detected | Wiring, fuel injector, engine control module |
| P120D | Secondary fuel injector, block 2 – Excessive flow detected | Wiring, fuel injector, engine control module |
| P120E | Fuel pressure sensor, circuit A – Excessive variation | Wiring, fuel pressure sensor |
| P120F | Fuel pressure regulator – Excessive pressure variation | – |
| P1210 | Injector control pressure higher than desired – engine off | – |
| P1211 | Injector control pressure – Pressure high/low | Wiring, injector, engine control module |
| P1212 | Injector control pressure lower than desired – engine starting or running | Wiring, fuel pressure, low oil pressure, low oil level |
| P1213 | Cold start injector – Circuit faulty | Wiring, cold start injector |
| P1214 | Accelerator pedal position sensor B – Intermittent circuit interruption | Wiring, accelerator pedal position sensor |
| P1215 | Accelerator pedal position sensor C – Input signal low in circuit | Wiring, accelerator pedal position sensor |
| P1216 | Accelerator pedal position sensor C – Input signal high in circuit | Wiring, accelerator pedal position sensor |
| P1217 | Accelerator pedal position sensor C – Intermittent circuit interruption | Wiring, accelerator pedal position sensor |
| P1218 | Camshaft position sensor – High voltage | Wiring, camshaft position sensor |
| P1219 | Camshaft position sensor – Low voltage | Wiring, camshaft position sensor |
| P121A | Cylinder balance test – Injector blocked | Injector |
| P121B | Cylinder balance test – Injector blocked | Injector |
| P121C | Cylinder balance test – Injector leak | Injector |
| P1220 | Throttle control system | – |
| P1221 | Traction control system | – |
| P1222 | Accelerator pedal position sensor B – Signal low | Wiring, accelerator pedal position sensor |
| P1223 | Accelerator pedal position sensor B – Signal high | Wiring, accelerator pedal position sensor |
| P1224 | Throttle position sensor B – Out of self-test range | Wiring, throttle position sensor |
| P1225 | Injector needle lift sensor | Wiring, dirty fuel, air in fuel, injector needle lift sensor |
| P1226 | Fuel quantity regulator position sensor – Circuit faulty | Wiring, fuel quantity regulator position sensor |
| P1227 | Injection timing solenoid | Wiring, dirty fuel, air in fuel, injection timing solenoid |
| P1228 | Vehicle speed governor | Wiring, vehicle speed governor |
| P1229 | Injection timing solenoid | Wiring, dirty fuel, air in fuel, injection timing solenoid |
| P1230 | Fuel pump, low speed | Wiring, fuel pump relay, fuel pump |
| P1231 | Fuel pump, high speed | Wiring, fuel pump |
| P1232 | Fuel pump, two-speed | Wiring, fuel pump |
| P1233 | Fuel pump control module – Control module disabled or disconnected | Wiring, fuel pump, engine control module |
| P1234 | Fuel pump control module – Control module disabled or disconnected | Wiring, fuel pump, engine control module |
| P1235 | Fuel pump control – Out of range | Wiring, fuel pump control module |
| P1236 | Fuel pump control – Out of range | Wiring, fuel pump control module |
| P1237 | Fuel pump – Circuit faulty | Wiring, fuel pump control module |
| P1238 | Fuel pump – Circuit faulty | Wiring, fuel pump, fuel pump control module |
| P1239 | Fuel pump high speed, positive supply | – |
| P123A | Barometric pressure sensor, turbocharger/supercharger boost pressure sensor A – Correlation | Wiring, barometric pressure sensor, turbocharger/supercharger boost pressure sensor |
| P123B | Barometric pressure sensor, turbocharger/supercharger boost pressure sensor B – Correlation | Wiring, barometric pressure sensor, turbocharger/supercharger boost pressure sensor |
| P123C | Turbocharger system, low temperature protection system activated – Forced limited power mode | – |
| P1240 | Sensor supply current | Wiring, engine control module |
| P1241 | Sensor supply current – Input signal low | Wiring |
| P1242 | Sensor supply current – Input signal high | Wiring |
| P1243 | Secondary fuel pump – Incorrect operation, ground circuit fault | Wiring, fuel pump |
| P1244 | Alternator – Input signal high | Wiring, alternator |
| P1245 | Alternator – Input signal low | Wiring, alternator |
| P1246 | Alternator | Wiring, alternator |
| P1247 | Turbocharger boost pressure low | Wiring, turbocharger wastegate actuator, turbocharger |
| P1248 | Turbocharger boost pressure not detected | Wiring, turbocharger |
| P1249 | Turbocharger wastegate valve – Malfunction | Turbocharger |
| P1250 | Fuel pressure regulator control solenoid | Wiring, fuel pressure regulator control solenoid |
| P1251 | Air mixture solenoid – Circuit faulty | Wiring, injector |
| P1252 | Accelerator pedal position sensor – Signal correlation, high | Wiring, accelerator pedal position sensor |
| P1253 | Accelerator pedal position sensor – Signal correlation, low | Wiring, accelerator pedal position sensor |
| P1254 | Accelerator pedal position sensor – Signal correlation, high | Wiring, accelerator pedal position sensor |
| P1255 | Accelerator pedal position sensor – Signal correlation, low | Wiring, accelerator pedal position sensor |
| P1256 | Accelerator pedal position sensor – Signal correlation | Wiring, accelerator pedal position sensor |
| P1257 | Accelerator pedal position sensor – Signal correlation | Wiring, accelerator pedal position sensor |
| P1258 | Accelerator pedal position sensor – Signal correlation | Wiring, accelerator pedal position sensor |
| P1259 | Immobilizer signal error to engine control module | Wiring, immobilizer control module |
| P1260 | Theft detected – Vehicle immobilized | – |
| P1261 | Injector 1 – Short circuit | Wiring, injector, engine control module |
| P1262 | Injector 2 – Short circuit | Wiring, injector, engine control module |
| P1263 | Injector 3 – Short circuit | Wiring, injector, engine control module |
| P1264 | Injector 4 – Short circuit | Wiring, injector, engine control module |
| P1265 | Injector 5 – Short circuit | Wiring, injector |
| P1266 | Injector 6 – Short circuit | Wiring, injector |
| P1267 | Injector 7 – Short circuit | Wiring, injector |
| P1268 | Injector 8 – Short circuit | Wiring, injector |
| P1269 | Immobilizer code not programmed | Wiring, immobilizer code not programmed |
| P126A | Injector 1 – Input circuit faulty | Wiring, injector, engine control module |
| P126B | Injector 2 – Input circuit faulty | Wiring, injector, engine control module |
| P126C | Injector 3 – Input circuit faulty | Wiring, injector, engine control module |
| P126D | Injector 4 – Input circuit faulty | Wiring, injector, engine control module |
| P126E | Injector 5 – Input circuit faulty | Wiring, injector, engine control module |
| P126F | Injector 6 – Input circuit faulty | Wiring, injector, engine control module |
| P1270 | Maximum engine speed or vehicle speed reached | – |
| P1271 | Injector 1 – Short circuit | Wiring, injector, engine control module |
| P1272 | Injector 2 – Short circuit | Wiring, injector, engine control module |
| P1273 | Injector 3 – Short circuit | Wiring, injector, engine control module |
| P1274 | Injector 4 – Short circuit | Wiring, injector, engine control module |
| P1275 | Injector 5 – Short circuit | Wiring, injector, engine control module |
| P1276 | Injector 6 – Short circuit | Wiring, injector, engine control module |
| P1277 | Injector 7 – Short circuit | Wiring, injector, engine control module |
| P1278 | Injector 8 – Short circuit | Wiring, injector, engine control module |
| P127A | Engine start interrupted – Fuel pressure anomaly | Incorrect fuel pressure |
| P127B | Engine start interrupted – Camshaft position | – |
| P127C | Manifold absolute pressure sensor – Out of self-test range | Wiring, manifold absolute pressure sensor |
| P127D | Injector 7 – Input circuit faulty | Wiring, injector, engine control module |
| P127E | Injector 8 – Input circuit faulty | Wiring, injector, engine control module |
| P1280 | Injector control pressure sensor – Low voltage | Wiring, injector control pressure sensor, engine control module |
| P1281 | Injector control pressure sensor – High voltage | Wiring, injector control pressure sensor, engine control module |
| P1282 | Injector control pressure higher than desired – engine running | Wiring, injector control pressure sensor, engine control module |
| P1283 | Injector pressure regulator – Control circuit | Wiring, injector, engine control module |
| P1284 | Injector control pressure – Incorrect operation | Wiring, injector, injector control pressure sensor, engine control module |
| P1285 | Cylinder head temperature sensor – Overheating | Wiring, cooling system fault, cylinder head temperature sensor |
| P1286 | Fuel control – Pulse duration within range but lower than expected | – |
| P1287 | Fuel control – Pulse duration within range but higher than expected | – |
| P1288 | Cylinder head temperature sensor – Out of self-test range | Wiring, cooling system fault, cylinder head temperature sensor |
| P1289 | Cylinder head temperature sensor – Input signal high | Wiring, cooling system fault, cylinder head temperature sensor |
| P128A | Cylinder head temperature sensor – Intermittent/erratic circuit | Wiring, cooling system fault, cylinder head temperature sensor |
| P1290 | Cylinder head temperature sensor – Input signal low | Wiring, cooling system fault, cylinder head temperature sensor |
| P1291 | Injector, block 1 – Short circuit to positive/ground | Wiring, injector, engine control module |
| P1292 | Injector, block 2 – Short circuit to positive/ground | Wiring, injector, engine control module |
| P1293 | Injector, block 1 – Circuit open | Wiring, injector, engine control module |
| P1294 | Injector, block 2 – Circuit open | Wiring, injector, engine control module |
| P1295 | Injector, block 1 – Multiple faults | Wiring |
| P1296 | Injector, block 2 – Multiple faults | Wiring |
| P1297 | Injectors – Short circuit between components | Wiring, engine control module |
| P1298 | Injector control module | Injector control module |
| P1299 | Cylinder head temperature sensor – Overheating protection system activated | Wiring, cooling system fault, cylinder head temperature sensor |
| P1300 | Boost pressure – Incorrect operation | – |
| P1301 | Boost pressure – Pressure high | – |
| P1302 | Boost pressure – Pressure low | – |
| P1303 | Exhaust gas recirculation system – Calibration fault | – |
| P1304 | Exhaust gas recirculation system – Calibration high | – |
| P1305 | Exhaust gas recirculation system – Calibration low | – |
| P1306 | Forced downshift (kick-down) relay – Drive circuit relay anomaly | Wiring, transmission forced downshift (kick-down) relay |
| P1307 | Forced downshift (kick-down) relay – Maintenance circuit relay anomaly | Wiring, transmission forced downshift (kick-down) relay |
| P1308 | Air conditioning compressor clutch – Circuit faulty | Wiring, air conditioning compressor clutch |
| P1309 | Misfire monitor – Incorrect operation | Camshaft position sensor misaligned, electrical interference crankshaft position sensor/camshaft position sensor, crankshaft position sensor, camshaft position sensor, mechanical fault, engine control module fault |
| P130A | Knock sensor 3 – Circuit | Wiring, knock sensor |
| P130B | Knock sensor 4 – Circuit | Wiring, knock sensor |
| P130C | Knock control – Combustion fault | – |
| P130D | Knock control, combustion fault – Forced limited power mode | – |
| P130F | Crankshaft position sensor/camshaft position sensor – Communication error | Wiring, crankshaft position sensor, camshaft position sensor |
| P1310 | Ionization misfire detection module | Ionization misfire detection module |
| P1311 | Ionization misfire detection module – Communication error | Wiring, ionization misfire detection module |
| P1313 | Misfire detection, block 1 | – |
| P1314 | Misfire detection, block 2 | – |
| P1315 | Misfire detection | – |
| P1316 | Fuel injector control module – Fault codes stored | Check fault codes |
| P1317 | Fuel injector control module – Fault codes not recovered | – |
| P1319 | Injection timing piston position sensor – Circuit faulty/malfunction/range | Wiring, injection timing piston position sensor |
| P1320 | Distributor – Signal interrupted | Wiring |
| P1321 | Injector 9 – Short circuit | Wiring, injector |
| P1322 | Injector 10 – Short circuit | Wiring, injector |
| P1323 | Injector 11 – Short circuit | Wiring, injector |
| P1324 | Injector 12 – Short circuit | Wiring, injector |
| P1325 | Injector 9 – Circuit open | Wiring, injector |
| P1326 | Injector 10 – Circuit open | Wiring, injector |
| P1327 | Injector 11 – Circuit open | Wiring, injector |
| P1328 | Injector 12 – Circuit open | Wiring, injector |
| P1329 | Injector control pressure – Pressure high, engine running | – |
| P132A | Turbocharger/supercharger boost pressure control A – Electrical fault | Wiring, turbocharger/supercharger boost control solenoid |
| P132B | Turbocharger/supercharger boost pressure control A – Malfunction | Wiring, turbocharger/supercharger boost control solenoid |
| P132C | Turbocharger/supercharger boost pressure control A – Voltage low/high | Wiring, turbocharger/supercharger boost control solenoid |
| P132D | Turbocharger/supercharger boost pressure control B – Electrical fault | Wiring, turbocharger/supercharger boost control solenoid |
| P132E | Turbocharger/supercharger boost pressure control B – Malfunction | Wiring, turbocharger/supercharger boost control solenoid |
| P132F | Turbocharger/supercharger boost pressure control B – Voltage low/high | Wiring, turbocharger/supercharger boost control solenoid |
| P1330 | Injector control pressure – Pressure low, engine running | – |
| P1331 | Turbocharger/supercharger boost pressure control – Circuit open | Wiring, turbocharger wastegate actuator, supercharger bypass valve |
| P1332 | Turbocharger/supercharger boost pressure control – Signal low | Short circuit to ground in wiring, turbocharger wastegate actuator, supercharger bypass valve |
| P1333 | Turbocharger/supercharger boost pressure control – Signal high | Short circuit to positive in wiring, turbocharger wastegate actuator, supercharger bypass valve |
| P1334 | Throttle position sensor in exhaust gas recirculation system – Anomaly in minimum/maximum end position | Wiring, throttle position sensor in exhaust gas recirculation system |
| P1335 | Exhaust gas recirculation valve position sensor – Circuit malfunction/range | Wiring, exhaust gas recirculation valve position sensor |
| P1336 | Crankshaft position sensor/camshaft position sensor – Circuit malfunction/range | Wiring, crankshaft position sensor, camshaft position sensor, mechanical fault |
| P1337 | Throttle position sensor – Output circuit | Wiring, throttle position sensor |
| P1338 | Fuel pump control module – Communication error | Wiring, fuel pump control module |
| P1339 | Fuel pump control module – Communication error | Wiring, fuel pump control module |
| P1340 | Camshaft position sensor, circuit B – Circuit faulty | Wiring, camshaft position sensor |
| P1341 | Camshaft position sensor, circuit B – Circuit malfunction/range | Wiring, camshaft position sensor |
| P1342 | Accelerator pedal position sensor A – Circuit malfunction/range | Wiring, accelerator pedal position sensor, engine control module |
| P1343 | Accelerator pedal position sensor B – Circuit malfunction/range | Wiring, accelerator pedal position sensor, engine control module |
| P1344 | Accelerator pedal position sensor C – Circuit malfunction/range | Wiring, accelerator pedal position sensor, engine control module |
| P1345 | Camshaft position sensor – Circuit faulty | Wiring, camshaft position sensor |
| P1346 | Fuel level sensor B – Circuit faulty | Wiring, fuel level sensor |
| P1347 | Fuel level sensor B – Malfunction/range | Wiring, fuel level sensor |
| P1348 | Fuel level sensor B – Signal low | Wiring, fuel level sensor |
| P1349 | Fuel level sensor B – Signal high | Wiring, fuel level sensor |
| P1350 | Fuel level sensor B – Intermittent circuit interruption | Wiring, fuel level sensor |
| P1351 | Ignition system diagnosis monitor – Input circuit faulty | Wiring, ignition control module, engine control module |
| P1352 | Ignition coil A – Primary circuit faulty | Wiring, ignition coil |
| P1353 | Ignition coil B – Primary circuit faulty | Wiring, ignition coil |
| P1354 | Ignition coil C – Primary circuit faulty | Wiring, ignition coil |
| P1355 | Ignition coil D – Primary circuit faulty | Wiring, ignition coil |
| P1356 | Ignition system diagnosis monitor – Diagnosis monitor indicates engine rotation absence | – |
| P1357 | Ignition system diagnosis monitor – Pulse duration not defined | – |
| P1358 | Ignition system diagnosis monitor – Signal out of self-test range | Wiring, ignition control module, engine control module |
| P1359 | Ignition system, spark output signal – Circuit faulty | Wiring, ignition control module, engine control module |
| P1360 | Ignition coil A – Secondary circuit faulty | Wiring, ignition coil |
| P1361 | Ignition coil B – Secondary circuit faulty | Wiring, ignition coil |
| P1362 | Ignition coil C – Secondary circuit faulty | Wiring, ignition coil |
| P1363 | Ignition coil D – Secondary circuit faulty | Wiring, ignition coil |
| P1364 | Ignition coil – Primary circuit faulty | Wiring, ignition coil |
| P1365 | Ignition coil – Secondary circuit faulty | Wiring, high voltage cables, spark plugs, distributor, ignition coil |
| P1366 | Ignition system | – |
| P1367 | Ignition system | – |
| P1368 | Ignition system | – |
| P1369 | Engine temperature warning light – Circuit faulty | Wiring, fuses, instrument cluster |
| P1370 | Insufficient RPM increase during spark plug test | – |
| P1371 | Ignition coil, cylinder 1 – Premature activation | Wiring, ignition coil |
| P1372 | Ignition coil, cylinder 2 – Premature activation | Wiring, ignition coil |
| P1373 | Ignition coil, cylinder 3 – Premature activation | Wiring, ignition coil |
| P1374 | Ignition coil, cylinder 4 – Premature activation | Wiring, ignition coil |
| P1375 | Ignition coil, cylinder 5 – Premature activation | Wiring, ignition coil |
| P1376 | Ignition coil, cylinder 6 – Premature activation | Wiring, ignition coil |
| P1377 | Injector – Shut-off by overvoltage | Wiring, alternator |
| P1378 | Fuel injector control module – System voltage low | Wiring, alternator, battery |
| P1379 | Fuel injector control module – System voltage high | Wiring, alternator, battery |
| P1380 | Camshaft position actuator – Circuit faulty | Wiring, camshaft position actuator |
| P1381 | Camshaft position actuator – Ignition over-advanced | Wiring, timing belt/chain, camshaft position actuator |
| P1382 | Camshaft position actuator – Circuit faulty | Wiring, camshaft position actuator |
| P1383 | Camshaft position actuator – Ignition over-retarded | Wiring, timing belt/chain, camshaft position actuator |
| P1384 | Variable valve timing solenoid A – Incorrect operation | Incorrect valve timing, variable valve timing solenoid |
| P1385 | Camshaft position actuator, block 2 – Circuit faulty | Wiring, camshaft position actuator |
| P1386 | Camshaft timing, block 2 – Ignition over-advanced | – |
| P1387 | Variable valve timing solenoid 2 – Circuit faulty | Wiring, variable valve timing solenoid |
| P1388 | Camshaft timing, block 2 – Ignition over-retarded | – |
| P1389 | Glow plug – Circuit faulty | Wiring, glow plug |
| P138A | Glow plug control module, control circuit – Malfunction/range | Wiring, glow plug control module |
| P138B | Glow plug control module, system voltage | Wiring, glow plug control module |
| P138C | Turbocharger intercooler bypass actuator position sensor – Anomaly in minimum/maximum end position | Wiring, turbocharger intercooler bypass actuator position sensor |
| P138D | Turbocharger/supercharger boost pressure control A – Temperature too high | Turbocharger/supercharger boost pressure sensor |
| P138E | Turbocharger boost control position sensor A – Anomaly in minimum/maximum end position | – |
| P138F | Turbocharger boost control position sensor B – Anomaly in minimum/maximum end position | – |
| P1390 | Octane coding plug – In use/circuit open | Wiring |
| P1391 | Glow plug, block 1 – Circuit faulty | Wiring, glow plug |
| P1392 | Glow plug, block 1 – Circuit faulty | Wiring, glow plug |
| P1393 | Glow plug, block 2 – Circuit faulty | Wiring, glow plug |
| P1394 | Glow plug, block 2 – Circuit faulty | Wiring, glow plug |
| P1395 | Glow plug supervisor – Incorrect operation, block 1 | Wiring |
| P1396 | Glow plug supervisor – Incorrect operation, block 2 | Wiring |
| P1397 | System voltage out of self-test range | Wiring, battery, alternator |
| P1398 | Variable valve timing solenoid B – Input signal high | Wiring, variable valve timing solenoid |
| P1399 | Glow plug – Circuit faulty | Wiring, glow plug |
| P1400 | Exhaust gas recirculation pressure sensor – Circuit faulty, input signal low | Wiring, exhaust gas recirculation pressure sensor |
| P1401 | Exhaust gas recirculation pressure sensor – Circuit faulty, input signal high | Wiring, exhaust gas recirculation pressure sensor |
| P1402 | Exhaust gas recirculation system – Metering orifice restricted | Metering orifice |
| P1403 | Exhaust gas recirculation pressure sensor – Hoses transposed | Incorrect hose connection |
| P1404 | Exhaust gas recirculation temperature sensor – Circuit faulty | Wiring, exhaust gas recirculation temperature sensor |
| P1405 | Exhaust gas recirculation system – Front hose disconnected or blocked | Exhaust gas recirculation hoses |
| P1406 | Exhaust gas recirculation system – Rear hose disconnected or blocked | Exhaust gas recirculation hoses |
| P1407 | Exhaust gas recirculation – No flow detected | Blocked/leaking hoses, exhaust gas recirculation valve |
| P1408 | Exhaust gas recirculation – Flow out of self-test range | Wiring, exhaust gas recirculation solenoid, exhaust gas recirculation valve |
| P1409 | Exhaust gas recirculation solenoid – Circuit faulty | Wiring, exhaust gas recirculation solenoid |
| P140A | Exhaust gas recirculation sensor C – Signal low | Wiring, exhaust gas recirculation sensor |
| P140B | Exhaust gas recirculation sensor C – Signal high | Wiring, exhaust gas recirculation sensor |
| P140C | Exhaust gas recirculation control B – Circuit faulty | Wiring |
| P140D | Exhaust gas recirculation control B – Circuit malfunction/range | Wiring |
| P140E | Exhaust gas recirculation valve position sensor C – Anomaly in minimum/maximum end position | – |
| P140F | Exhaust gas recirculation control throttle valve – Throttle valve stuck | – |
| P1410 | Air filter intake control solenoid – Circuit faulty | Wiring, air filter intake control solenoid |
| P1411 | Secondary air injection system – Incorrect flow detected | Wiring, secondary air injection solenoid, secondary air injection pump/relay, mechanical fault |
| P1412 | Exhaust gas recirculation valve – Valve jammed | Exhaust gas recirculation valve |
| P1413 | Secondary air injection, supervisor circuit – Input signal low | Wiring, secondary air injection solenoid |
| P1414 | Secondary air injection, supervisor circuit – Input signal high | Wiring, secondary air injection solenoid |
| P1415 | Secondary air injection system – Incorrect operation | Wiring, air pump |
| P141A | Exhaust gas recirculation sensor A – Intermittent/erratic circuit | Wiring |
| P141B | Exhaust gas recirculation sensor B – Circuit | Wiring |
| P141C | Exhaust gas recirculation sensor C – Intermittent/erratic circuit | Wiring |
| P141D | Exhaust gas recirculation valve position sensor B – Anomaly in minimum/maximum end position | Wiring, exhaust gas recirculation valve position sensor |
| P141E | Catalyst temperature sensor 1/2, block 1 – Correlation | Wiring, catalyst temperature sensor |
| P141F | Catalyst temperature sensor 1/2, block 2 – Correlation | Wiring, catalyst temperature sensor |
| P1420 | Catalyst temperature sensor | Wiring, catalyst temperature sensor |
| P1421 | Catalyst – Fault limit | Wiring, catalyst temperature sensor |
| P1422 | Exhaust gas ignition – Temperature sensor | Wiring, exhaust gas temperature sensor |
| P1423 | Exhaust gas ignition – Functional test | – |
| P1424 | Exhaust gas ignition – Primary spark plug | – |
| P1425 | Exhaust gas ignition – Secondary spark plug | – |
| P1426 | Exhaust gas ignition – Mass air flow sensor signal, out of range | Wiring, mass air flow sensor, engine control module |
| P1427 | Exhaust gas ignition – Mass air flow sensor signal, short circuit | Wiring, mass air flow sensor, engine control module |
| P1428 | Exhaust gas ignition – Mass air flow sensor signal, circuit open | Wiring, mass air flow sensor, engine control module |
| P1429 | Electric air pump – Primary | Wiring, electric air pump |
| P142A | Incorrect conditions for secondary air injection system self-test | – |
| P142B | Exhaust gas recirculation sensor | Wiring, exhaust gas recirculation solenoid, exhaust gas recirculation temperature sensor |
| P142C | Exhaust gas recirculation sensor D – Circuit malfunction/range | Wiring, exhaust gas recirculation sensor, engine control module |
| P142D | Exhaust gas recirculation sensor D – Signal low | Wiring, exhaust gas recirculation sensor, engine control module |
| P142E | Exhaust gas recirculation sensor D – Signal high | Wiring, exhaust gas recirculation sensor, engine control module |
| P142F | Exhaust gas recirculation sensor D – Intermittent/erratic circuit | Wiring, exhaust gas recirculation sensor, engine control module |
| P1430 | Electric air pump – Secondary | Wiring, electric air pump |
| P1431 | Misfire supervisor disabled, unable to register sensor parameters | – |
| P1432 | Engine thermostat heater – Circuit faulty | Wiring, engine thermostat heater |
| P1433 | Air conditioning refrigerant temperature sensor – Signal low | Wiring, air conditioning refrigerant temperature sensor |
| P1434 | Air conditioning refrigerant temperature sensor – Signal high | Wiring, air conditioning refrigerant temperature sensor |
| P1435 | Air conditioning refrigerant temperature sensor – Circuit malfunction/range | Wiring, air conditioning refrigerant temperature sensor |
| P1436 | Air conditioning evaporator temperature sensor – Low voltage | Wiring, air conditioning evaporator temperature sensor |
| P1437 | Air conditioning evaporator temperature sensor – High voltage | Wiring, air conditioning evaporator temperature sensor |
| P1438 | Air conditioning evaporator temperature sensor – Circuit malfunction/range | Wiring, air conditioning evaporator temperature sensor |
| P1439 | Floor temperature switch – Circuit faulty | – |
| P143A | Battery voltage low – Air conditioning compressor clutch disabled | Wiring, battery, alternator |
| P143B | Battery voltage low – Forced limited power mode | Wiring, battery |
| P1440 | Evaporative emission system – Leak detected | Evaporative emission system leak |
| P1441 | Evaporative emission loss control system – System faulty | – |
| P1442 | Evaporative emission system – Leak detected in system | Hose connections, fuel tank filler cap leak, evaporative emission control valve |
| P1443 | Evaporative emission control valve – Flow low/not detected | Hose connections, evaporative emission control valve |
| P1444 | Evaporative emission filter purge flow sensor – Low voltage | Wiring, evaporative emission filter purge flow sensor |
| P1445 | Evaporative emission filter purge flow sensor – High voltage | Wiring, evaporative emission filter purge flow sensor |
| P1446 | Evaporative emission system – Circuit faulty | Wiring, evaporative emission control valve |
| P1447 | Evaporative emission system – System faulty | – |
| P1448 | Evaporative emission system – System faulty | – |
| P1449 | Evaporative emission system – Circuit faulty | Wiring, evaporative emission control valve |
| P144A | Evaporative emission control valve – Incorrect operation | Blocked/disconnected/broken hoses |
| P144B | Evaporative emission control valve, secondary purge vapor ventilation – Incorrect operation | Blocked/disconnected/broken hoses |
| P144C | Evaporative emission control valve – Malfunction | – |
| P1450 | Evaporative emission system – Fuel tank vacuum test failed | Blocked/leaking hoses, evaporative emission control vacuum valve |
| P1451 | Evaporative emission vent valve – Circuit faulty | Wiring, evaporative emission vent valve |
| P1452 | Evaporative emission system – Fuel tank vacuum test failed | Blocked/leaking hoses, evaporative emission control vacuum valve |
| P1453 | Fuel tank vent valve – Incorrect operation | – |
| P1454 | Evaporative emission system – Vacuum test failed | – |
| P1455 | Evaporative emission system – Leak detected | Blocked/leaking hoses |
| P1456 | Fuel tank temperature sensor – Circuit faulty | Wiring, fuel tank temperature sensor |
| P1457 | Fuel tank – Vacuum leak | Blocked/leaking hoses |
| P1459 | Air conditioning recirculation switch – Out of self-test range | Wiring, air conditioning recirculation switch |
| P145A | Air conditioning compressor clutch – System cancellation | Air conditioning refrigerant level low/high |
| P145B | Air conditioning deactivated during self-test | Wiring, air conditioning control module |
| P145C | Air conditioning condenser fan motor A – Incorrect operation | Wiring, air conditioning condenser fan motor |
| P145D | Air conditioning condenser fan motor B – Incorrect operation | Wiring, air conditioning condenser fan motor |
| P145E | Crankcase ventilation, heater B – Circuit | Wiring, heater |
| P145F | Door contact switch, driver’s side – Out of self-test range | Wiring, door contact switch |
| P1460 | Wide open throttle signal (air conditioning cut-off) – Circuit faulty | Wiring, throttle position sensor/switch |
| P1461 | Air conditioning refrigerant pressure switch – High voltage | Wiring, air conditioning refrigerant pressure switch |
| P1462 | Air conditioning refrigerant pressure sensor – Low voltage | Wiring, air conditioning refrigerant pressure sensor |
| P1463 | Air conditioning refrigerant pressure sensor – Insufficient pressure change | Wiring, air conditioning refrigerant pressure sensor |
| P1464 | Air conditioning request – Out of self-test range | Wiring, air conditioning relay |
| P1465 | Air conditioning relay – Circuit faulty | Wiring, air conditioning relay |
| P1466 | Air conditioning refrigerant temperature sensor – Circuit faulty | Wiring, air conditioning refrigerant temperature sensor |
| P1467 | Air conditioning compressor temperature sensor | Wiring, air conditioning compressor temperature sensor |
| P1468 | Shift solenoid valve – Circuit open/short circuit | Wiring, shift solenoid valve |
| P1469 | Air conditioning system – Rapid on/off cycles of air conditioning compressor clutch | Wiring, air conditioning refrigerant pressure sensor/switch, air conditioning cooling system fault |
| P1470 | Air conditioning compressor clutch – Stroke too short | Air conditioning refrigerant high charge |
| P1471 | Engine coolant fan motor 1, driver’s side – Incorrect operation | Wiring, engine coolant fan motor |
| P1472 | Engine coolant fan motor 2, passenger side – Incorrect operation | Wiring, engine coolant fan motor |
| P1473 | Engine coolant fan motor – Circuit open | Wiring, engine coolant fan motor, engine coolant fan motor relay |
| P1474 | Engine coolant fan motor – Control circuit faulty | Wiring, engine coolant fan motor relay |
| P1475 | Engine compartment cooling fan relay (low speed) – Circuit faulty | Wiring, engine compartment cooling fan relay |
| P1476 | Engine compartment cooling fan relay (high speed) – Circuit faulty | Wiring, engine compartment cooling fan relay |
| P1477 | Auxiliary fan relay – Circuit faulty | Wiring, auxiliary fan relay |
| P1478 | Engine coolant fan motor, controller fault | Engine control module |
| P1479 | Engine coolant fan motor, fan high speed – Circuit faulty | Wiring, engine coolant fan motor relay |
| P1480 | Engine coolant fan motor, secondary circuit – Fan low speed incorrect | Wiring, engine coolant fan motor relay |
| P1481 | Engine coolant fan motor, secondary circuit – Fan high speed incorrect | Wiring, engine coolant fan motor relay |
| P1482 | Communication transmission | Wiring, engine control module |
| P1483 | Engine coolant fan motor – Short circuit to ground | Wiring, engine coolant fan motor |
| P1484 | Engine coolant fan motor, controller fault – Circuit faulty | Wiring, engine control module |
| P1485 | Exhaust gas recirculation valve – Circuit faulty | Wiring, exhaust gas recirculation valve |
| P1486 | Exhaust gas recirculation valve actuator – Circuit faulty | Wiring, exhaust gas recirculation valve actuator |
| P1487 | Exhaust gas recirculation solenoid – Circuit faulty | Wiring, exhaust gas recirculation solenoid |
| P1488 | Exhaust gas control solenoid – Circuit faulty | Wiring, exhaust gas control solenoid |
| P1489 | Crankcase ventilation, heater – Control circuit | Wiring, crankcase ventilation heater |
| P1490 | Secondary air injection system – Incorrect operation | – |
| P1491 | Secondary air injection system – Incorrect operation | – |
| P1493 | Secondary air injection system – Incorrect operation | – |
| P1495 | Turbocharger control solenoid – Circuit faulty | Wiring, turbocharger control solenoid |
| P1496 | Exhaust gas recirculation valve actuator 1 – Circuit open/short circuit | Wiring, exhaust gas recirculation valve |
| P1497 | Exhaust gas recirculation valve actuator 2 – Circuit open/short circuit | Wiring, exhaust gas recirculation valve |
| P1498 | Exhaust gas recirculation valve actuator 3 – Circuit open/short circuit | Wiring, exhaust gas recirculation valve |
| P1499 | Exhaust gas recirculation valve actuator 4 – Circuit open/short circuit | Wiring, exhaust gas recirculation valve |
| P1500 | Vehicle speed sensor | Wiring, vehicle speed sensor |
| P1501 | Vehicle speed sensor – Out of self-test range | Wiring, vehicle speed sensor |
| P1502 | Vehicle speed sensor – Intermittent operation | Wiring, vehicle speed sensor |
| P1503 | Auxiliary speed sensor | Wiring, auxiliary speed sensor |
| P1504 | Idle air control valve – Circuit faulty | Wiring, idle air control valve |
| P1505 | Idle air control system – Adaptation fault | Wiring, idle air control valve, intake system leak |
| P1506 | Idle air control valve – Overspeed error | Wiring, air leak, throttle position sensor, idle air control valve |
| P1507 | Idle air control valve – Underspeed error | Wiring, throttle position sensor, idle air control valve |
| P1508 | Idle up solenoid 1 – Circuit faulty | Wiring, idle up solenoid |
| P1509 | Idle control system – Short circuit | Wiring |
| P150A | Injector 1 – Circuit malfunction/range | Wiring, injector |
| P150B | Injector 2 – Circuit malfunction/range | Wiring, injector |
| P150C | Injector 3 – Circuit malfunction/range | Wiring, injector |
| P150D | Injector 4 – Circuit malfunction/range | Wiring, injector |
| P150E | Engine control module cooling fan – Circuit faulty | Wiring, engine control module cooling fan |
| P150F | Engine control module cooling fan – Malfunction | Wiring, engine control module cooling fan |
| P1510 | Idle control system – Circuit faulty | – |
| P1511 | Idle control system – Circuit faulty | – |
| P1512 | Intake manifold air control solenoid, block 1 – Solenoid stuck closed | Intake manifold air control solenoid, mechanical fault |
| P1513 | Intake manifold air control solenoid, block 2 – Solenoid stuck closed | Intake manifold air control solenoid, mechanical fault |
| P1514 | Idle control system – Incorrect operation | – |
| P1515 | Generator current sensor – Incorrect operation | – |
| P1516 | Intake manifold air control solenoid, block 1 – Input signal error | Wiring, intake manifold air control solenoid, engine control module |
| P1517 | Intake manifold air control solenoid, block 2 – Input signal error | Intake manifold air control solenoid, mechanical fault |
| P1518 | Intake manifold air control solenoid, block 1 – Solenoid stuck open | Intake manifold air control solenoid, mechanical fault |
| P1519 | Intake manifold air control solenoid, block 1 – Solenoid stuck closed | Intake manifold air control solenoid, mechanical fault |
| P151A | Intake air control – Incorrect operation | Wiring, intake manifold air control solenoid |
| P151B | Idle control – Engine speed too low | Idle control actuator, idle air control valve, mechanical fault |
| P151C | Idle control – Engine speed too high | Idle control actuator, idle air control valve, mechanical fault |
| P1520 | Intake manifold air control solenoid – Circuit faulty | Wiring, intake manifold air control solenoid, engine control module |
| P1521 | Intake manifold air control solenoid 1 – Circuit faulty | Wiring, intake manifold air control solenoid |
| P1522 | Intake manifold air control solenoid 2 – Circuit faulty | Wiring, intake manifold air control solenoid |
| P1524 | Intake manifold air control solenoid – Circuit faulty | Wiring |
| P1525 | Air bypass valve solenoid – Incorrect operation | Wiring, air bypass valve solenoid |
| P1526 | Air bypass valve control – Incorrect operation | Hose leak/blockage, wiring, air bypass valve actuator/solenoid |
| P1527 | Idle up solenoid – Circuit faulty | Wiring, idle up solenoid |
| P1528 | Idle air control system – Incorrect operation | Wiring, idle air control valve, mechanical fault |
| P1529 | Secondary air injection solenoid – Incorrect operation | Wiring, secondary air injection solenoid, engine control module |
| P152E | Fuel cut-off activated | – |
| P1530 | Air conditioning compressor clutch – Circuit open | Wiring, air conditioning compressor clutch |
| P1531 | Test invalid – accelerator pedal movement during test | Accelerator pedal movement during test |
| P1532 | Intake manifold air control actuator/intake manifold air control solenoid, block 2 – Circuit faulty | Wiring, engine control module |
| P1533 | Air assisted injector – Circuit faulty | Wiring |
| P1534 | Passive safety system, deployment indicator – Circuit faulty | Wiring |
| P1535 | Engine coolant fan motor, fan speed incorrect | Wiring, engine coolant fan motor |
| P1536 | Parking brake warning switch – Circuit faulty | Wiring, parking brake warning switch |
| P1537 | Intake manifold air control solenoid, block 1 – Solenoid stuck open | Intake manifold air control solenoid, mechanical fault |
| P1538 | Intake manifold air control solenoid, block 2 – Solenoid stuck open | Intake manifold air control solenoid, mechanical fault |
| P1539 | Air conditioning compressor clutch – Circuit overcurrent/short circuit | Wiring, air conditioning compressor clutch |
| P1540 | Air bypass valve control – Incorrect operation | Wiring, air bypass valve actuator/solenoid |
| P1541 | Intake manifold air control solenoid – Circuit malfunction/range | Wiring, intake manifold air control solenoid |
| P1542 | Engine control module, primary circuit (dual engine control module application) – Defective identification | Wiring |
| P1543 | Engine coolant heater A – Control circuit faulty | Wiring, engine coolant heater relay, engine control module |
| P1544 | Engine coolant heater B – Control circuit faulty | Wiring, engine coolant heater relay, engine control module |
| P1545 | Exhaust gas recirculation control – Circuit open | Wiring, exhaust gas recirculation solenoid, engine control module |
| P1546 | Exhaust gas recirculation control – Voltage low | Wiring, exhaust gas recirculation solenoid, engine control module |
| P1547 | Exhaust gas recirculation control – Voltage high | Wiring, exhaust gas recirculation solenoid, engine control module |
| P1548 | Air filter – Blockage | Air filter |
| P1549 | Intake manifold air control solenoid, block 1 – Control circuit faulty | Wiring, mechanical fault, engine control module |
| P1550 | Power steering pressure sensor – Out of self-test range | Wiring, power steering pressure sensor |
| P1551 | Injector 1 – Circuit malfunction/range | Wiring, injector, engine control module |
| P1552 | Injector 2 – Circuit malfunction/range | Wiring, injector, engine control module |
| P1553 | Injector 3 – Circuit malfunction/range | Wiring, injector, engine control module |
| P1554 | Injector 4 – Circuit malfunction/range | Wiring, injector, engine control module |
| P1555 | Injector 5 – Circuit malfunction/range | Wiring, injector, engine control module |
| P1556 | Injector 6 – Circuit malfunction/range | Wiring, injector, engine control module |
| P1557 | Injector 7 – Circuit malfunction/range | Wiring, injector, engine control module |
| P1558 | Injector 8 – Circuit malfunction/range | Wiring, injector, engine control module |
| P1561 | Brake fluid pressure sensor – Circuit faulty | Wiring, brake fluid pressure sensor |
| P1563 | Injection pump – Engine stop request | Wiring, injection pump, engine control module |
| P1564 | Injection pump – Reduced fuel mode request | Wiring, injection pump, engine control module |
| P1565 | Cruise control main switch – Out of range, high voltage | Wiring, cruise control main switch, engine control module |
| P1566 | Cruise control main switch – Out of range, low voltage | Wiring, cruise control main switch, engine control module |
| P1567 | Cruise control, controller fault – Circuit faulty | Wiring, cruise control actuator, engine control module |
| P1568 | Cruise control – Unable to maintain vehicle speed | Wiring, cruise control actuator, cruise control actuator control cable |
| P1571 | Brake pedal position switch – Incorrect operation | Wiring, brake pedal position switch |
| P1572 | Brake pedal position switch – Circuit faulty | Wiring, brake pedal position switch |
| P1573 | Throttle position sensor – No signal | Wiring, throttle position sensor |
| P1574 | Throttle position sensor – Signal correlation | Wiring, throttle position sensor |
| P1575 | Accelerator pedal position sensor – Out of self-test range | Wiring, accelerator pedal position sensor, engine control module |
| P1576 | Accelerator pedal position sensor – No signal | Wiring, accelerator pedal position sensor, engine control module |
| P1577 | Accelerator pedal position sensor – Signal correlation | Wiring, accelerator pedal position sensor, engine control module |
| P1578 | Throttle actuator control supervisor – Requested engine power not reached | Wiring, throttle body, engine control module |
| P1579 | Throttle actuator control supervisor – Emergency basic operating mode activated | Wiring, throttle body, engine control module |
| P1580 | Throttle actuator control supervisor – Incorrect operation | Wiring, throttle body, engine control module |
| P1581 | Throttle actuator control supervisor – Incorrect operation | Wiring, throttle body, engine control module |
| P1582 | Throttle actuator control supervisor – Incorrect operation | Wiring, throttle body, engine control module |
| P1583 | Throttle actuator control supervisor – Cruise control deactivated | Wiring, throttle body, engine control module |
| P1584 | Throttle actuator control supervisor – Throttle body anomaly | Throttle body |
| P1585 | Throttle actuator control system – Incorrect operation | Wiring, throttle body, engine control module |
| P1586 | Throttle actuator control system – Communication error | Wiring, engine control module |
| P1587 | Throttle actuator control system – Command anomaly | Wiring, throttle body, engine control module |
| P1588 | Throttle actuator control system – Throttle return spring defective | Throttle body |
| P1589 | Throttle actuator control system – Throttle movement anomaly | Wiring, throttle body, engine control module |
| P1590 | Cruise control, distance control – Incorrect operation | Wiring, cruise control distance control module |
| P1591 | Cruise control, distance control – Incorrect operation | Wiring, cruise control distance control module |
| P1594 | Remote engine start system – Forced engine stop mode | – |
| P1595 | Remote engine start system – Forced engine stop mode | – |
| P1600 | KAM permanent memory power loss | Wiring, fuses, battery |
| P1601 | Communication between engine control module and transmission – Signal error | Wiring, engine control module, transmission control module |
| P1602 | Immobilizer/engine control module – Communication error | Wiring, immobilizer, engine control module |
| P1603 | EEPROM memory error | Engine control module |
| P1604 | Engine control module – Incorrect immobilizer code | Immobilizer code not programmed |
| P1605 | Engine control module – KAM permanent memory error | Engine control module |
| P1606 | Engine control relay – Circuit faulty | Wiring, engine control relay |
| P1607 | Engine malfunction indicator light – Circuit faulty | Wiring, malfunction indicator light, instrument panel |
| P1608 | Engine control module – Incorrect operation | Engine control module |
| P1609 | Malfunction indicator light – Controller fault | Engine control module |
| P160A | Engine control module – Activation error | – |
| P160B | Incompatible alternator | – |
| P160C | Engine control module – Malfunction | – |
| P160E | Engine control module/transmission control module – Memory error | Wiring, programming error, engine control module, transmission control module |
| P160F | Engine control module/transmission control module – Memory error | Wiring, programming error, engine control module, transmission control module |
| P1610 | Engine control module | Engine control module |
| P1611 | Engine control module – Perform further diagnostics | – |
| P1612 | Engine control module – Self-test anomaly/engine starting | Repeat self-test |
| P1613 | Engine control module | – |
| P1614 | Engine control module | – |
| P1615 | Engine control module – Clear fault code | – |
| P1616 | Engine control module – Clear fault code, voltage low | – |
| P1617 | Engine control module – Program error | – |
| P1618 | Engine control module – Program error, voltage low | – |
| P1619 | Engine control module – Memory checksum error | – |
| P161A | Immobilizer control module – Incorrect signal | Wiring, immobilizer transceiver coil, immobilizer control module |
| P161B | Immobilizer system – Incorrect signal | Wiring, immobilizer transceiver coil, immobilizer control module |
| P1620 | Engine control module – Memory checksum error | – |
| P1621 | Immobilizer code – Incorrect immobilizer code | – |
| P1622 | Immobilizer code – Incorrect immobilizer code | – |
| P1623 | Immobilizer code – Immobilizer code incorrectly programmed/not programmed | – |
| P1624 | Immobilizer/engine control module – Communication error | – |
| P1625 | Engine coolant fan motor, controller fault – Circuit open | Wiring, engine control module |
| P1626 | Air conditioning system – Circuit open | Wiring |
| P1627 | Engine control module – Supply voltage out of range | Wiring, fuses, battery, engine control relay |
| P1628 | Engine control module – Supply voltage | Wiring, fuses, battery, engine control relay |
| P1629 | Engine control module – Internal voltage regulator | Ground points, engine control module |
| P162A | Sensor reference voltage D – Circuit open | Wiring, engine control module |
| P162B | Sensor reference voltage D – Signal low | Wiring, engine control module |
| P162C | Sensor reference voltage D – Signal high | Wiring, engine control module |
| P162D | Engine control module, cruise control – Malfunction | Engine control module |
| P162E | Engine control module, transmission auxiliary power take-off control – Malfunction | Engine control module |
| P162F | Starter motor – Maximum starting time exceeded | Wiring, mechanical fault |
| P1630 | Engine control module – Internal reference voltage | Ground points, engine control module |
| P1631 | Engine control relay | Wiring, engine control relay |
| P1632 | Alternator/battery temperature sensor – Circuit faulty | Wiring, alternator, battery temperature sensor |
| P1633 | KAM permanent memory power supply – Voltage too low | Wiring, battery, alternator |
| P1634 | Data extraction link – Circuit faulty | Wiring |
| P1635 | Vehicle speed signal not plausible | Incorrect tire size, incorrect axle ratio, engine control module not programmed |
| P1636 | Engine control module – Communication error | Engine control module |
| P1637 | CAN data bus, engine control module/ABS control module/traction control system – Network anomaly | Wiring, ABS control module/traction control system, engine control module |
| P1638 | CAN data bus, engine control module/instrumentation control module – Network anomaly | Wiring, instrumentation control module, engine control module |
| P1639 | Engine control module not programmed | – |
| P163A | Alternator field control B – Control circuit faulty | Wiring, alternator |
| P163B | Alternator field terminal B – Circuit faulty | Wiring, alternator |
| P163C | Alternator field terminal B – Signal low | Wiring, alternator |
| P163D | Alternator field terminal B – Signal high | Wiring, alternator |
| P163E | Transmission control module – Programming error | Perform engine control module programming |
| P163F | Transmission control module, corrupted software – Control module not programmed | Perform engine control module programming |
| P1640 | Engine control module fault code(s) stored in other system(s) | – |
| P1641 | Fuel pump – Circuit faulty | Wiring, fuel pump relay, fuel pump, engine control module |
| P1642 | CAN data bus – Circuit faulty | Wiring |
| P1643 | CAN data bus – Module network circuit error | Wiring |
| P1644 | Fuel pump speed control – Circuit faulty | Wiring, fuel pump control module, engine control module |
| P1645 | Fuel pump resistor – Circuit faulty | Wiring, fuel pump resistor |
| P1646 | Heated oxygen sensor control, block 1 – Engine control module | Engine control module |
| P1647 | Heated oxygen sensor control, block 2 – Engine control module | Engine control module |
| P164A | Heated oxygen sensor 1, block 1, positive current control – Circuit operation | Wiring, heated oxygen sensor, engine control module |
| P164B | Heated oxygen sensor 1, block 2, positive current control – Circuit operation | Wiring, heated oxygen sensor, engine control module |
| P164C | Internal control module start/stop function | – |
| P164D | Four-wheel drive – Programming error | – |
| P1650 | Power steering pressure switch – Out of self-test range | Wiring, power steering pressure switch |
| P1651 | Power steering pressure switch – Input signal | Wiring, power steering pressure switch |
| P1652 | Idle air control system – System cancellation | Wiring, power steering pressure switch |
| P1653 | Power steering control – Output circuit faulty | Wiring |
| P1654 | Exhaust gas recirculation system – Incorrect operation | Wiring, exhaust gas recirculation system control module |
| P1655 | Starter motor – Circuit faulty | Wiring, starter motor relay |
| P1656 | CAN data bus – Circuit faulty | Wiring |
| P1657 | CAN data bus – Incorrect operation | Wiring, engine control module |
| P1658 | Injection pump – Supply voltage out of range | Wiring, engine control relay, engine control module |
| P1659 | Injection pump – Supply voltage | Wiring, engine control relay, engine control module |
| P165A | Engine coolant radiator shutter position sensor A – Circuit faulty | Wiring, engine coolant radiator shutter position sensor |
| P165B | Engine coolant radiator shutter actuator A – Malfunction or permanent actuator deactivation | Wiring, engine coolant radiator shutter actuator |
| P165C | Engine coolant radiator shutter actuator A – Anomaly in minimum/maximum end position | Wiring, engine coolant radiator shutter actuator |
| P165D | Engine coolant radiator shutter actuator A – Control circuit faulty | Wiring, engine coolant radiator shutter actuator |
| P165E | Engine coolant radiator shutter control module A – Supply voltage low | Wiring, engine coolant radiator shutter control module |
| P165F | Engine control module/transmission control module – Error in vehicle options | – |
| P1660 | Engine control module, output signal – Signal high | System voltage high, engine control module |
| P1661 | Engine control module, output signal – Signal low | System voltage low, engine control module |
| P1662 | Engine control module, output signal – Circuit faulty | Wiring, fuses, engine control relay |
| P1663 | Fuel demand signal – Command anomaly | Wiring, engine control module |
| P1664 | Injection pump – Incorrect operation | Wiring, injection pump, engine control module |
| P1665 | Injection pump – Communication | Wiring, injection pump control module, engine control module |
| P1666 | Injection pump – Crankshaft position sensor synchronization | Wiring, crankshaft position sensor, injector needle lift sensor, injection pump control module, engine control module |
| P1667 | Camshaft position sensor – Circuit faulty | Wiring, camshaft position sensor |
| P1668 | Injection pump – Communication signal loss | Wiring, injection pump control module, engine control module |
| P1669 | Injection pump – Monitoring, mechanical fault | Wiring, injection pump, engine control module |
| P1670 | Feedback signal not detected | – |
| P1673 | ABS warning light, control – Circuit faulty | Wiring, ABS control module, engine control module |
| P1674 | Engine control module – Corrupted software | Engine control module |
| P1675 | Injector – Not programmed in engine control module | Engine control module incorrectly programmed/not programmed |
| P1676 | Injector – Incorrect engine control module programming | Engine control module incorrectly programmed/not programmed |
| P1677 | Alternative fuel control module – Defective communication | Wiring, alternative fuel control module |
| P1678 | Engine oil pressure warning light – Control circuit faulty | Wiring, engine oil pressure warning light |
| P1679 | Engine oil pressure sensor/switch – Output circuit faulty | Wiring, engine oil pressure sensor/switch |
| P167A | Alternative fuel control module, communication circuit – Low voltage | Wiring, alternative fuel control module |
| P167B | Injector – Adaptive values not completed | Registration procedure not performed |
| P167C | CAN data bus, engine control module – Incorrect operation | Wiring, engine control module |
| P167D | Brake pedal position switch A/B – Signal correlation | Wiring, brake pedal position switch |
| P167E | Non-original component calibration detected – Maximum engine torque exceeded | Perform engine control module programming |
| P167F | Non-original component calibration detected | – |
| P1689 | Engine oil pressure control valve – Incorrect operation | – |
| P168F | Cold start injection – Malfunction | – |
| P1690 | Turbocharger wastegate valve – Circuit faulty | Wiring, turbocharger wastegate valve |
| P1691 | Turbocharger boost control solenoid – Incorrect operation | Wiring, turbocharger boost control solenoid |
| P1692 | Turbocharger boost control solenoid – Incorrect operation | Wiring, turbocharger boost control solenoid |
| P1693 | Turbocharger boost pressure control – Incorrect operation | Wiring, turbocharger boost control solenoid |
| P1694 | Turbocharger boost pressure control – Incorrect operation | Wiring, turbocharger boost control solenoid |
| P1695 | CAN data bus – Injection pump data | Wiring, injection pump control module, engine control module |
| P1698 | Cold start fuel pump, primary circuit – Circuit open | Wiring, cold start fuel pump |
| P169A | Cold start fuel pump, primary circuit – Signal low | Wiring, cold start fuel pump |
| P169B | Cold start fuel pump, primary circuit – Signal high | Wiring, cold start fuel pump |
| P169C | Cold start fuel pump, secondary circuit – Circuit open | Wiring, cold start fuel pump |
| P169D | Cold start fuel pump, secondary circuit – Signal low | Wiring, cold start fuel pump |
| P169E | Cold start fuel pump, secondary circuit – Signal high | Wiring, cold start fuel pump |
| P169F | Control module – Unused fault code | – |
| P1700 | Transmission – Anomaly in neutral position | Wiring, transmission |
| P1701 | Reverse gear selection – Incorrect operation | – |
| P1702 | Low/high range sensor – Intermittent circuit interruption | Wiring, low/high range sensor |
| P1703 | Brake pedal position switch – Out of self-test range | Wiring, brake pedal position switch |
| P1704 | Low/high range sensor – Circuit does not indicate park/neutral during self-test | Wiring, low/high range sensor, engine control module |
| P1705 | Low/high range switch – Neither in P nor N during self-test | Wiring, low/high range switch, engine control module |
| P1706 | High vehicle speed detected in park | Wiring, low/high range sensor, engine control module |
| P1707 | Transfer case neutral position warning light – Circuit faulty | Wiring, transfer case neutral position switch, instruments |
| P1708 | Clutch pedal position switch – Circuit faulty | Wiring, clutch pedal position switch |
| P1709 | Park/neutral position switch/clutch pedal position switch – Out of self-test range | Wiring, park/neutral position switch, clutch pedal position switch, engine control module |
| P170A | Clutch pedal position switch – Out of self-test range | Wiring, clutch pedal position switch |
| P170B | Clutch – Adaptive values not completed | Perform registration procedure |
| P170C | Clutch A, activation time – Malfunction | – |
| P170D | Clutch B, activation time – Malfunction | – |
| P170E | Clutch torque supplied – Malfunction | – |
| P170F | Clutch pressure relief valve – Incorrect operation | – |
| P1710 | Transmission control module, shift solenoid valve control – Internal anomaly | Transmission control module |
| P1711 | Transmission oil temperature sensor – Out of self-test range | Wiring, transmission oil temperature sensor |
| P1712 | Transmission torque reduction system – Request signal error | Wiring, throttle position sensor, engine control module |
| P1713 | Transmission oil temperature sensor – Circuit malfunction/range | Wiring, transmission oil temperature sensor |
| P1714 | Shift solenoid valve A – Incorrect operation | Wiring, shift solenoid valve, engine control module |
| P1715 | Shift solenoid valve B – Incorrect operation | Wiring, shift solenoid valve, engine control module |
| P1716 | Shift solenoid valve C – Incorrect operation | Wiring, shift solenoid valve, engine control module |
| P1717 | Shift solenoid valve D – Incorrect operation | Wiring, shift solenoid valve, engine control module |
| P1718 | Transmission oil temperature sensor – Circuit malfunction/range | Wiring, transmission oil temperature sensor |
| P1719 | Engine torque signal | – |
| P171A | Transmission shift fork A jammed, movement detected in transmission shift fork B | Transmission mechanical fault |
| P171B | Transmission shift fork A jammed, movement detected in transmission shift fork C | Transmission mechanical fault |
| P171C | Transmission shift fork B jammed, movement detected in transmission shift fork A | Transmission mechanical fault |
| P171D | Transmission shift fork B jammed, movement detected in transmission shift fork D | Transmission mechanical fault |
| P171E | Transmission shift fork C jammed, movement detected in transmission shift fork A | Transmission mechanical fault |
| P171F | Transmission shift fork C jammed, movement detected in transmission shift fork D | Transmission mechanical fault |
| P1720 | Vehicle speed sensor – Incorrect operation | Wiring, vehicle speed sensor, instrument panel, speedometer |
| P1721 | 1st gear – Incorrect ratio | – |
| P1722 | 2nd gear – Incorrect ratio | – |
| P1723 | 3rd gear – Incorrect ratio | – |
| P1724 | 4th gear – Incorrect ratio | – |
| P1725 | Insufficient engine speed increase during self-test | Insufficient engine speed increase during self-test |
| P1726 | Insufficient engine speed reduction during self-test | Insufficient engine speed reduction during self-test |
| P1727 | Freewheel solenoid – Incorrect operation | Wiring, freewheel solenoid, engine control module |
| P1728 | Transmission component slippage | Transmission mechanical fault |
| P1729 | Low/high range switch (4×4) – Circuit faulty | Wiring, low/high range switch |
| P172A | Transmission shift fork D jammed, movement detected in transmission shift fork B | Transmission mechanical fault |
| P172B | Transmission shift fork D jammed, movement detected in transmission shift fork C | Transmission mechanical fault |
| P172C | Transmission shift fork A/B control valve – Control valve permanently activated | Wiring, transmission shift fork control valve |
| P172D | Transmission shift fork A/B control valve – Control valve permanently deactivated | Wiring, transmission shift fork control valve |
| P172E | Transmission shift fork C/D control valve – Control valve permanently activated | Wiring, transmission shift fork control valve |
| P172F | Transmission shift fork C/D control valve – Control valve permanently deactivated | Wiring, transmission shift fork control valve |
| P1730 | 2nd/3rd/5th gear control – Incorrect operation | – |
| P1731 | Gearshift defective, 1st-2nd | Transmission mechanical fault |
| P1732 | Gearshift defective, 2nd-3rd | Transmission mechanical fault |
| P1733 | Gearshift defective, 3rd-4th | Transmission mechanical fault |
| P1734 | Gearshift defective, 4th-5th | Transmission mechanical fault |
| P1735 | Gear selection, 1st-2nd – Gearshift defective | Wiring, shift solenoid valves, transmission mechanical fault |
| P1736 | Gear selection, 2nd-3rd – Gearshift defective | Wiring, shift solenoid valves, transmission mechanical fault |
| P1737 | Transmission lock-up solenoid – Incorrect operation | – |
| P1738 | Gearshift time error | – |
| P1739 | Transmission component slippage | – |
| P173A | Clutch position sensor – Circuit malfunction/range | Wiring, clutch position sensor |
| P173B | Clutch position sensor – Signal low | Wiring, clutch position sensor |
| P173C | Clutch position sensor – Signal low | Wiring, clutch position sensor |
| P173D | Ignition key lock solenoid – Circuit open | Wiring, ignition key lock solenoid |
| P173E | Ignition key lock solenoid – Signal low | Wiring, ignition key lock solenoid |
| P173F | Ignition key lock solenoid – Signal high | Wiring, ignition key lock solenoid |
| P1740 | Torque converter clutch solenoid – Incorrect operation | Wiring, torque converter clutch solenoid, engine control module |
| P1741 | Torque converter clutch solenoid – Control error | Wiring, torque converter clutch solenoid, engine control module |
| P1742 | Torque converter clutch solenoid – Circuit faulty | Wiring, torque converter clutch solenoid, engine control module |
| P1743 | Torque converter clutch solenoid – Circuit faulty | Wiring, torque converter clutch solenoid, engine control module |
| P1744 | Torque converter clutch solenoid – Circuit operation | Wiring, torque converter clutch solenoid, engine control module |
| P1745 | Transmission – Electronic pressure control solenoid – Incorrect operation | – |
| P1746 | Transmission oil pressure control solenoid A – Circuit open | Wiring, transmission oil pressure control solenoid |
| P1747 | Transmission oil pressure control solenoid A – Short circuit | Wiring, transmission oil pressure control solenoid |
| P1748 | Transmission oil pressure control solenoid A – Incorrect operation | Wiring, transmission oil pressure control solenoid |
| P1749 | Transmission oil pressure control solenoid A – Anomaly with low transmission oil pressure | Wiring, transmission oil pressure control solenoid |
| P174A | Transmission gear position switch X – Signal low | Wiring, transmission gear position switch |
| P174B | Transmission gear position switch X – Signal high | Wiring, transmission gear position switch |
| P174C | Transmission gear position switch Y – Signal low | Wiring, transmission gear position switch |
| P174D | Transmission gear position switch Y – Signal high | Wiring, transmission gear position switch |
| P174E | Transmission output shaft speed sensor/ABS wheel speed sensor – Correlation | Wiring, transmission output shaft speed sensor, ABS wheel speed sensor |
| P174F | Traction control warning light – Circuit faulty | Wiring, traction control warning light |
| P1750 | Clutch – Adaptive values not completed | – |
| P1751 | Shift solenoid valve A – Malfunction | Wiring, shift solenoid valve |
| P1753 | Transmission gear position sensor – Malfunction | Incorrect adjustment |
| P1754 | Freewheel solenoid – Circuit faulty | Wiring, freewheel solenoid |
| P1755 | Engine control module/CAN data bus/EPB control module – Circuit faulty | Wiring, parking brake control module, engine control module |
| P1756 | Shift solenoid valve B – Malfunction | Wiring, shift solenoid valve |
| P1758 | Transmission mode control solenoid – Circuit current out of range | Wiring, transmission mode control solenoid |
| P1759 | Shift solenoid valve – Incorrect operation | Wiring, shift solenoid valve, transmission control module fault codes stored |
| P175A | Transmission oil temperature sensor, overheating – Transmission oil pump disabled | Transmission oil level, transmission oil temperature sensor |
| P1760 | Transmission oil pressure control solenoid A – Intermittent short circuit | Wiring, transmission oil pressure control solenoid |
| P1761 | Shift solenoid valve C – Malfunction | Wiring, shift solenoid valve |
| P1762 | Transmission overdrive band – Incorrect operation | – |
| P1763 | Shift solenoid valve – Incorrect operation | Wiring, shift solenoid valve, transmission control module fault codes stored |
| P1764 | Shift solenoid valve – Incorrect operation | Wiring, shift solenoid valve, transmission control module fault codes stored |
| P1765 | Injection timing solenoid – Circuit faulty | Wiring, injection timing solenoid |
| P1766 | Shift solenoid valve D – Malfunction | Wiring, shift solenoid valve |
| P1767 | Torque converter clutch solenoid – Circuit faulty | Wiring, torque converter clutch solenoid |
| P1768 | Transmission mode selector switch – Incorrect operation | Wiring, transmission mode selector switch |
| P1769 | Transmission torque modulation fault (AG4 gearbox) | – |
| P176A | Transmission mode selector switch – Incorrect operation | Wiring, transmission mode selector switch |
| P176B | Transmission mode selector switch – Control error | Wiring, transmission mode selector switch, transmission |
| P176C | Parking position lock solenoid – Control error | Wiring, parking position lock solenoid, transmission |
| P176D | Transmission mode selector switch – Incorrect signal | Wiring, transmission mode selector switch |
| P176E | Clutch pedal position sensor A – Correlation | Wiring, clutch pedal position sensor |
| P176F | Clutch pedal position sensor B – Correlation | Wiring, clutch pedal position sensor |
| P1770 | Clutch solenoid – Circuit faulty | Wiring, clutch solenoid |
| P1771 | Shift solenoid valve E – Malfunction | Wiring, shift solenoid valve |
| P1773 | CAN data bus – Anomaly in fuel-operated heater | Wiring, fuel-operated heater |
| P1775 | Transmission – Malfunction indicator light on request | – |
| P1776 | Ignition retard request – Incorrect duration | – |
| P1777 | Ignition retard request – Circuit faulty | Wiring |
| P1778 | Reverse gear – Input circuit faulty | – |
| P1779 | Transmission warning light – Circuit faulty | Wiring, transmission warning light |
| P177A | Gear selector motor | – |
| P177B | Gear selector motor – High current | Wiring, gear selector motor, charging system |
| P177C | Transmission position motor | – |
| P177D | Transmission position motor – High current | Wiring, transmission position motor, charging system |
| P177E | Transmission position motor sensor – Circuit malfunction/range | Wiring, transmission position motor sensor, transmission |
| P1780 | Transmission mode selector switch, overdrive cancellation – Value out of self-test range | Wiring, transmission mode selector switch |
| P1781 | Low/high range switch (4x4L) – Out of self-test range | Wiring, low/high range switch |
| P1782 | Transmission mode selector switch, performance/economy mode – Out of self-test range | Wiring, transmission mode selector switch |
| P1783 | Transmission overheating | Transmission mechanical fault |
| P1784 | Transmission mechanical fault – 1st and reverse gear | Transmission mechanical fault |
| P1785 | Transmission mechanical fault – 1st and 2nd gear | Transmission mechanical fault |
| P1786 | Transmission downshift error, 3rd-2nd | – |
| P1787 | Transmission downshift error, 2nd-1st | – |
| P1788 | Transmission oil pressure control solenoid B – Circuit open | Wiring, transmission oil pressure control solenoid |
| P1789 | Transmission oil pressure control solenoid B – Short circuit | Wiring, transmission oil pressure control solenoid |
| P1790 | Throttle position sensor – Circuit faulty | Wiring, throttle position sensor |
| P1791 | Throttle position sensor – Circuit faulty | Wiring, throttle position sensor |
| P1792 | Barometric pressure sensor – Circuit faulty | Wiring, barometric pressure sensor |
| P1793 | Intake air volume – Circuit faulty | Wiring |
| P1794 | Engine control module – Supply voltage | Fuses, wiring, battery, alternator |
| P1795 | CAN data bus – Inconsistent signal level | Wiring, engine control module |
| P1796 | Forced downshift (kick-down) switch – Circuit faulty | Wiring, forced downshift (kick-down) switch |
| P1797 | Neutral position switch – Incorrect operation | Wiring, neutral position switch, engine control module/transmission control module |
| P1798 | Engine coolant temperature sensor – Circuit faulty | Wiring, engine coolant temperature sensor |
| P1799 | Shift hold switch – Incorrect operation | Wiring, shift hold switch |
| P179A | CAN data bus, engine control module/turbocharger control solenoid A – Circuit faulty | Wiring |
| P179B | CAN data bus, engine control module/turbocharger control solenoid A – Invalid information received | – |
| P1800 | Transmission clutch lock-up safety switch (4×4) – Circuit faulty | Wiring, transmission clutch lock-up safety switch, mechanical fault |
| P1801 | Transmission clutch lock-up safety switch (4×4) – Circuit open | Wiring, transmission clutch lock-up safety switch |
| P1802 | Transmission clutch lock-up safety switch (4×4) – Short circuit to positive | Wiring |
| P1803 | Transmission clutch lock-up safety switch (4×4) – Short circuit to ground | Wiring |
| P1804 | Transmission mode selection warning light (4×4), high range – Circuit faulty | Wiring, selection warning light, instruments, engine control module |
| P1805 | Transmission mode selection warning light (4×4), high range – Circuit open | Wiring, selection warning light, instruments, engine control module |
| P1806 | Transmission mode selection warning light (4×4), high range – Short circuit to positive | Wiring, selection warning light, instruments, engine control module |
| P1807 | Transmission mode selection warning light (4×4), high range – Short circuit to ground | Wiring, selection warning light, instruments, engine control module |
| P1808 | Transmission mode selection warning light (4×4), low range – Circuit faulty | Wiring, selection warning light, instruments, engine control module |
| P1809 | Transmission mode selection warning light (4×4), low range – Circuit open | Wiring, selection warning light, instruments, engine control module |
| P1810 | Transmission mode selection warning light (4×4), low range – Short circuit to positive | Wiring, selection warning light, instruments, engine control module |
| P1811 | Transmission mode selection warning light (4×4), low range – Short circuit to ground | Wiring, selection warning light, instruments, engine control module |
| P1812 | Transmission mode selector switch (4×4) – Circuit faulty | Wiring, transmission mode selector switch, engine control module |
| P1813 | Transmission mode selector switch (4×4) – Circuit open | Wiring, transmission mode selector switch, engine control module |
| P1814 | Transmission mode selector switch (4×4) – Short circuit to positive | Wiring, transmission mode selector switch, engine control module |
| P1815 | Transmission mode selector switch (4×4) – Short circuit to ground | Wiring, transmission mode selector switch, engine control module |
| P1816 | Neutral position switch (4×4) – Circuit faulty | Wiring, neutral position switch |
| P1817 | Neutral position switch (4×4) – Circuit open | Wiring, neutral position switch |
| P1818 | Neutral position switch (4×4) – Short circuit to positive | Wiring |
| P1819 | Neutral position switch (4×4) – Short circuit to ground | Wiring |
| P181A | Clutch control solenoid (4×4) – Circuit open | Wiring, clutch control solenoid |
| P181B | Clutch control solenoid (4×4) – Signal low | Wiring, clutch control solenoid |
| P181C | Clutch control solenoid (4×4) – Signal high | Wiring, clutch control solenoid |
| P181D | Clutch control solenoid (4×4) – Circuit malfunction/range | Wiring, clutch control solenoid |
| P181E | Clutch actuator (4×4) – Circuit malfunction/range | Wiring, clutch control solenoid |
| P181F | Clutch control system (4×4) – Malfunction | Wiring, clutch control solenoid |
| P1820 | Transfer case motor relay module (4×4), motor rotation to right – Circuit faulty | Wiring, transfer case motor relay module |
| P1821 | Transfer case motor relay module (4×4), motor rotation to right – Circuit open | Wiring, transfer case motor relay module |
| P1822 | Transfer case motor relay module (4×4), motor rotation to right – Short circuit to positive | Wiring, transfer case motor relay module |
| P1823 | Transfer case motor relay module (4×4), motor rotation to right – Short circuit to ground | Wiring, transfer case motor relay module |
| P1824 | Four-wheel drive clutch relay – Circuit faulty | Wiring, transmission system relay |
| P1825 | Four-wheel drive clutch relay – Circuit open | Wiring, transmission system relay |
| P1826 | Four-wheel drive clutch relay – Short circuit to positive | Wiring, transmission system relay |
| P1827 | Four-wheel drive clutch relay – Short circuit to ground | Wiring, transmission system relay |
| P1828 | Transfer case motor relay module (4×4), motor rotation to left – Circuit faulty | Wiring, transfer case motor relay module |
| P1829 | Transfer case motor relay module (4×4), motor rotation to left – Circuit open | Wiring, transfer case motor relay module |
| P182A | Transfer case oil temperature sensor – Circuit faulty | Low oil level, wiring, transfer case oil temperature sensor |
| P182B | Transfer case oil temperature sensor – Circuit malfunction/range | Low oil level, wiring, transfer case oil temperature sensor |
| P182C | Transfer case oil temperature sensor – Signal low | Low oil level, wiring, transfer case oil temperature sensor |
| P182D | Transfer case oil temperature sensor – Signal high | Low oil level, wiring, transfer case oil temperature sensor |
| P182E | Transfer case oil temperature sensor – Intermittent circuit interruption | Low oil level, wiring, transfer case oil temperature sensor |
| P182F | Four-wheel drive clutch – Upper limit exceeded – Four-wheel drive system disabled | Wiring, mechanical fault |
| P1830 | Transfer case motor relay module (4×4), motor rotation to left – Short circuit to positive | Wiring, transfer case motor relay module |
| P1831 | Transfer case motor relay module (4×4), motor rotation to left – Short circuit to ground | Wiring, transfer case motor relay module |
| P1832 | Differential lock actuator (4×4) – Circuit faulty | Wiring, differential lock actuator |
| P1833 | Differential lock actuator (4×4) – Circuit open | Wiring, differential lock actuator |
| P1834 | Differential lock actuator (4×4) – Short circuit to positive | Wiring, differential lock actuator |
| P1835 | Differential lock actuator (4×4) – Short circuit to ground | Wiring, differential lock actuator |
| P1836 | Transfer case front axle speed sensor (4×4) – Circuit faulty | Wiring, transfer case front axle speed sensor |
| P1837 | Transfer case rear axle speed sensor (4×4) – Circuit faulty | Wiring, transfer case rear axle speed sensor |
| P1838 | Transfer case shift motor (4×4) – Circuit faulty | Wiring, transfer case shift motor |
| P1839 | Transfer case shift motor (4×4) – Circuit open | Wiring, transfer case shift motor |
| P183A | Transmission assembly (4×4) – Incorrect operation | Wiring, mechanical fault |
| P183B | Four-wheel drive control solenoid – Circuit open | Wiring, four-wheel drive control solenoid |
| P183C | Transfer case cooling fan – Control circuit faulty | Wiring, relay, transfer case cooling fan |
| P183D | Transfer case oil temperature sensor – Temperature high | Low oil level, cooling system, wiring, transfer case oil temperature sensor |
| P183E | Differential oil temperature too high | Low oil level, wiring, differential oil temperature sensor |
| P1840 | Transfer case shift motor (4×4) – Short circuit to positive | Wiring, transfer case shift motor |
| P1841 | Transfer case shift motor (4×4) – Short circuit to ground | Wiring, transfer case shift motor |
| P1842 | Differential lock switch (4×4) – Circuit faulty | Wiring, differential lock switch |
| P1843 | Differential lock switch (4×4) – Circuit open | Wiring, differential lock switch |
| P1844 | Differential lock switch (4×4) – Short circuit to positive | Wiring, differential lock switch |
| P1845 | Differential lock switch (4×4) – Short circuit to ground | Wiring, differential lock switch |
| P1846 | Transfer case motor position switch A (4×4) – Circuit faulty | Wiring, transfer case motor position switch |
| P1847 | Transfer case motor position switch A (4×4) – Circuit open | Wiring, transfer case motor position switch |
| P1848 | Transfer case motor position switch A (4×4) – Short circuit to positive | Wiring, transfer case motor position switch |
| P1849 | Transfer case motor position switch A (4×4) – Short circuit to ground | Wiring, transfer case motor position switch |
| P184A | Transfer case – Not possible to switch between two-wheel drive and four-wheel drive | Wiring, mechanical fault |
| P184B | Transfer case – Not possible to switch between low and high range gears | Wiring, mechanical fault |
| P184C | Transfer case, transition duration – Circuit malfunction/range | – |
| P184D | Transfer case – Not possible to switch between low and high range gears – Clutch incorrect operation | – |
| P1850 | Transfer case motor position switch B (4×4) – Circuit faulty | Wiring, transfer case motor position switch |
| P1851 | Transfer case motor position switch B (4×4) – Circuit open | Wiring, transfer case motor position switch |
| P1852 | Transfer case motor position switch B (4×4) – Short circuit to positive | Wiring, transfer case motor position switch |
| P1853 | Transfer case motor position switch B (4×4) – Short circuit to ground | Wiring, transfer case motor position switch |
| P1854 | Transfer case motor position switch C (4×4) – Circuit faulty | Wiring, transfer case motor position switch |
| P1855 | Transfer case motor position switch C (4×4) – Circuit open | Wiring, transfer case motor position switch |
| P1856 | Transfer case motor position switch C (4×4) – Short circuit to positive | Wiring, transfer case motor position switch |
| P1857 | Transfer case motor position switch C (4×4) – Short circuit to ground | Wiring, transfer case motor position switch |
| P1858 | Transfer case motor position switch D (4×4) – Circuit faulty | Wiring, transfer case motor position switch |
| P1859 | Transfer case motor position switch D (4×4) – Circuit open | Wiring, transfer case motor position switch |
| P185A | Differential lock switch – Signal high | – |
| P185B | Differential lock warning light – Signal low | – |
| P185C | Differential lock warning light – Signal high | – |
| P185D | Differential lock actuator – Control circuit malfunction/range | – |
| P1860 | Transfer case motor position switch D (4×4) – Short circuit to positive | Wiring, transfer case motor position switch |
| P1861 | Transfer case motor position switch D (4×4) – Short circuit to ground | Wiring, transfer case motor position switch |
| P1862 | Transfer case motor position switch A-D (4×4), supply voltage – Circuit faulty | Wiring, transfer case motor position switch |
| P1863 | Transfer case motor position switch A-D (4×4), supply voltage – Circuit open | Wiring, transfer case motor position switch |
| P1864 | Transfer case motor position switch A-D (4×4), supply voltage – Short circuit to positive | Wiring, transfer case motor position switch |
| P1865 | Transfer case motor position switch A-D (4×4), supply voltage – Short circuit to ground | Wiring, transfer case motor position switch |
| P1866 | Transfer case (4×4) – System faulty | Revision required |
| P1867 | Transfer case motor position switch A-D (4×4) – Circuit faulty | Wiring, transfer case motor position switch |
| P1868 | Four-wheel drive warning light – Circuit faulty | Wiring, four-wheel drive warning light, instruments, engine control module |
| P1869 | Four-wheel drive warning light – Short circuit to positive | Wiring, four-wheel drive warning light, instruments, engine control module |
| P186A | Differential lock actuator (4×4) – Circuit open | Wiring, differential lock actuator |
| P186B | Differential lock actuator (4×4) – Signal low | Wiring, differential lock actuator |
| P186C | Differential lock actuator (4×4) – Signal high | Wiring, differential lock actuator |
| P186D | Clutch control solenoid – Solenoid stuck open | Clutch control solenoid, mechanical fault |
| P186E | Leaking differential oil filter | – |
| P186F | Differential control module – Software incompatibility | – |
| P1870 | Four-wheel drive warning light switch – Circuit faulty | Wiring, four-wheel drive warning light switch |
| P1871 | Four-wheel drive warning light switch – Short circuit to positive | Wiring, four-wheel drive warning light switch |
| P1872 | Differential lock warning light (4×4) – Circuit faulty | Wiring, differential lock warning light |
| P1873 | Differential lock warning light (4×4) – Short circuit to positive | Wiring, differential lock warning light |
| P1874 | Transfer case Hall sensor (4×4) – Circuit faulty | Wiring, transfer case Hall sensor |
| P1875 | Transfer case Hall sensor (4×4) – Short circuit to positive | Wiring, transfer case Hall sensor |
| P1876 | Transfer case two-wheel drive solenoid (4×4) – Circuit faulty | Wiring, transmission mode control solenoid |
| P1877 | Transfer case two-wheel drive solenoid (4×4) – Short circuit to positive | Wiring, transmission mode control solenoid |
| P1878 | Four-wheel drive hub lock solenoid – Circuit faulty | Wiring, four-wheel drive hub lock solenoid |
| P1879 | Four-wheel drive hub lock solenoid – Circuit open | Wiring, four-wheel drive hub lock solenoid |
| P187A | Transfer case control module, low voltage – Differential lock disabled | Wiring, battery, alternator, transfer case control module |
| P187B | Incorrect tire size – Four-wheel drive system disabled | – |
| P187C | Differential lock actuator – Control circuit open | – |
| P187D | Differential lock actuator – Control circuit signal low | – |
| P187E | Differential lock actuator – Control circuit signal high | – |
| P187F | Differential lock switch – Signal low | – |
| P1880 | Four-wheel drive hub lock solenoid – Short circuit to positive | Wiring, four-wheel drive hub lock solenoid |
| P1881 | Engine coolant low level warning switch – Circuit faulty | Wiring, engine coolant low level warning switch |
| P1882 | Engine coolant low level warning switch – Short circuit to ground | Wiring, engine coolant low level warning switch |
| P1883 | Engine coolant low level warning switch – Circuit faulty | Wiring, engine coolant low level warning switch |
| P1884 | Engine coolant low level warning switch – Short circuit to ground | Wiring, engine coolant low level warning switch |
| P1885 | Four-wheel drive hub lock solenoid – Short circuit to ground | Wiring, four-wheel drive hub lock solenoid |
| P1886 | Transmission (4×4) – Adaptation fault | – |
| P1887 | Four-wheel drive control solenoid – Incorrect operation | Wiring, four-wheel drive control solenoid |
| P1889 | Transmission oil pressure pump (4×4) – Malfunction | – |
| P188A | Differential oil temperature too high/low | – |
| P188B | Four-wheel drive clutch – Control circuit faulty | Wiring, four-wheel drive system relay, four-wheel drive control module |
| P188C | Four-wheel drive system relay – Communication circuit faulty | Wiring, four-wheel drive system relay |
| P188D | Four-wheel drive system relay – Feedback circuit faulty | Wiring, four-wheel drive system relay |
| P188E | Transmission oil pressure pump (4×4) – Feedback circuit faulty | Wiring |
| P188F | Transfer case, ground circuit fault – Short circuit to positive | Wiring |
| P1890 | Transmission mode selector switch, feedback signal (4×4) – Circuit faulty | Wiring, transmission mode selector switch |
| P1891 | Transfer case motor position switch, ground circuit fault A-D (4×4) – Circuit open | Wiring, transfer case motor position switch |
| P1892 | Differential cone coupling solenoid (4×4) – High voltage | Wiring, differential cone coupling solenoid |
| P1893 | Differential cone coupling solenoid (4×4) – Low voltage | Wiring, differential cone coupling solenoid |
| P1894 | Differential cone decoupling solenoid (4×4) – High voltage | Wiring, differential cone decoupling solenoid |
| P1895 | Differential cone decoupling solenoid (4×4) – Low voltage | Wiring, differential cone decoupling solenoid |
| P1896 | Differential cone position sensor (4×4) – High voltage | Wiring, differential cone position sensor |
| P1897 | Differential cone position sensor (4×4) – Low voltage | Wiring, differential cone position sensor |
| P1898 | Differential cone warning light (4×4) – High voltage | Wiring, differential cone coupling warning light |
| P1899 | Differential cone warning light (4×4) – Low voltage | Wiring, differential cone coupling warning light |
| P189A | Axle disconnect switch (4×4) – Input circuit signal low | Wiring, axle disconnect switch |
| P189B | Axle disconnect switch (4×4) – Input circuit signal high | Wiring, axle disconnect switch |
| P1900 | Transmission output shaft speed sensor – Intermittent circuit interruption | Wiring, transmission output shaft speed sensor |
| P1901 | Turbine shaft speed sensor – Intermittent circuit interruption | Wiring, turbine shaft speed sensor |
| P1902 | Forced downshift (kick-down) relay – Control circuit faulty | Wiring, transmission forced downshift (kick-down) relay |
| P1903 | Forced downshift (kick-down) relay – Low voltage | Wiring, transmission forced downshift (kick-down) relay |
| P1904 | Forced downshift (kick-down) relay – High voltage | Wiring, transmission forced downshift (kick-down) relay |
| P1905 | Transmission control module – Programming | – |
| P1906 | Forced downshift (kick-down) relay (A4LD gearbox) – Drive circuit relay anomaly, circuit open/short circuit | Wiring, forced downshift (kick-down) relay |
| P1907 | Forced downshift (kick-down) relay (A4LD gearbox) – Maintenance circuit relay anomaly, circuit open/short circuit | Wiring, forced downshift (kick-down) relay |
| P1908 | Transmission oil pressure solenoid (A4LD gearbox) – Circuit open/short circuit | Wiring, transmission oil pressure solenoid |
| P1909 | Transmission oil temperature sensor (A4LD gearbox) – Circuit open/short circuit | Wiring, transmission oil temperature sensor |
| P1910 | Reverse light, control – Circuit open | Wiring, reverse light switch |
| P1911 | Reverse light, control – Low voltage | Wiring, reverse light switch |
| P1912 | Reverse light, control – High voltage | Wiring, reverse light switch |
| P1913 | Sensor ground A – Circuit open | Wiring, engine control module |
| P1914 | Sensor ground A – Low voltage | Wiring, engine control module |
| P1915 | Sensor ground A – High voltage | Wiring, engine control module |
| P1916 | Sensor ground B – Circuit open | Wiring, engine control module |
| P1917 | Sensor ground B – Low voltage | Wiring, engine control module |
| P1918 | Sensor ground B – High voltage | Wiring, engine control module |
| P1919 | Engine coolant temperature signal, transmission control module | Wiring, engine coolant temperature sensor |
| P1920 | Engine speed signal, transmission control module | Wiring |
| P1921 | Low/high range signal | Wiring, low/high range sensor/switch |
| P1922 | Fuel additive level sensor – Circuit faulty | Wiring |
| P1923 | Fuel additive level sensor – Circuit malfunction/range | Wiring, fuel additive control module |
| P1924 | Fuel additive level sensor – Signal low | Wiring |
| P1925 | Fuel additive level sensor – Signal high | Wiring |
| P1926 | Fuel additive level sensor – Intermittent/erratic circuit | Wiring, fuel additive control module |
| P1927 | Fuel additive level sensor | Fuel additive level low |
| P1928 | Fuel additive pump, control – Circuit open | Wiring, fuel additive control module |
| P1929 | Fuel additive pump, control – Circuit operation | Wiring, fuel additive control module |
| P1930 | Fuel additive pump, control – Signal low | Wiring, fuel additive control module |
| P1931 | Fuel additive pump, control – Signal high | Wiring, fuel additive control module |
| P1932 | Fuel additive level sensor | Fuel additive level low |
| P1933 | Fuel level signal | Wiring, fuel gauge sensor |
| P1934 | Vehicle speed signal | Wiring, vehicle speed sensor |
| P1935 | Brake pedal position sensor/switch signal | Wiring, brake pedal position sensor/switch |
| P1936 | Clutch pedal position sensor/switch signal | Wiring, clutch pedal position sensor/switch |
| P1937 | Fuel-operated heater, control – Circuit open | Wiring |
| P1938 | Fuel-operated heater, control – Voltage low | Wiring |
| P1939 | Fuel-operated heater, control – Voltage high | Wiring |
| P193A | Invalid diagnostic equipment request/communication | – |
| P193B | Accelerator pedal position sensor – Signal | Accelerator pedal position sensor |
| P193C | Steering wheel position sensor – Signal fault | Wiring, steering wheel position sensor |
| P193D | Cruise control – Input signal anomaly | Wiring |
| P193E | Air conditioning compressor clutch – Request signal | Wiring |
| P193F | Vehicle speed sensor – Intermittent operation | Wiring, vehicle speed sensor |
| P1970 | 4×4 low range switch – Short circuit to positive | Wiring, 4×4 low range switch |
| P1971 | 4×4 low range switch – Incorrect operation | Wiring, 4×4 low range switch |
| P1979 | Four-wheel drive hub lock vacuum solenoid – Incorrect operation | Wiring, four-wheel drive hub lock vacuum solenoid |
| P1980 | Four-wheel drive hub lock vacuum solenoid – Short circuit to positive | Wiring, four-wheel drive hub lock vacuum solenoid |
| P1A00 | Generator – Brake performance | – |
| P1A01 | Generator – Brake performance | – |
| P1A02 | Transmission one-way clutch – Malfunction | – |
| P1A03 | Traction motor A – Incorrect disconnection | – |
| P1A04 | Generator – Incorrect disconnection | – |
| P1A05 | Engine speed request – Signal fault | – |
| P1A06 | Vehicle mode signal | – |
| P1A07 | Inverter – High voltage circuit malfunction | – |
| P1A08 | Generator mode signal | – |
| P1A09 | Hybrid propulsion battery operating status signal in OFF | – |
| P1A0A | Immediate stop signal A | – |
| P1A0B | Hybrid propulsion battery power – Limit exceeded | – |
| P1A0C | Hybrid powertrain control module – Internal combustion engine disabled | – |
| P1A0D | Hybrid powertrain control module – Generator disabled | – |
| P1A0E | Hybrid powertrain control module – Traction motor disabled | – |
| P1A0F | Hybrid powertrain control module – Vehicle disabled | – |
| P1A10 | Hybrid powertrain control module – Battery disabled | – |
| P1A11 | Hybrid powertrain control module – One-way clutch disabled | – |
| P1A12 | Hybrid powertrain control module – Generator brake disabled | – |
| P1A13 | Hybrid powertrain control module – Regenerative braking system disabled | – |
| P1A14 | Hybrid powertrain control module – Transmission disabled | – |
| P1A15 | Immediate stop signal B | – |
| P1A16 | Variable voltage regulator – Control circuit faulty | – |
| P1A17 | Variable voltage regulator – Processor error | – |
| P1A18 | Variable voltage regulator inductor temperature sensor – Circuit faulty | – |
| P1A19 | Variable voltage regulator power amplifier temperature sensor – Circuit faulty | – |
| P1A1A | Variable voltage regulator – Overheating | – |
| P1A1B | Brake system control module – Forced internal combustion engine propulsion mode | – |
| P1A1C | Hybrid propulsion battery assembly A, control relay circuit – Malfunction | – |
| P1A1D | Hybrid propulsion battery assembly B, control relay circuit – Malfunction | – |
| P1A1E | Hybrid propulsion battery assembly contactor – Control signal | – |
| P1A1F | Hybrid propulsion battery assembly contactor A – Control circuit open | – |
| P1A20 | Hybrid propulsion battery assembly contactor A – Control circuit signal low | – |
| P1A21 | Hybrid propulsion battery assembly contactor A – Control circuit signal high | – |
| P1A22 | Hybrid propulsion battery assembly contactor A – Circuit stuck closed | – |
| P1A23 | Hybrid propulsion battery assembly contactor A – Circuit stuck open | – |
| P1A24 | Hybrid propulsion battery assembly contactor B – Control circuit open | – |
| P1A25 | Hybrid propulsion battery assembly contactor B – Control circuit signal low | – |
| P1A26 | Hybrid propulsion battery assembly contactor B – Control circuit signal high | – |
| P1A27 | Hybrid propulsion battery assembly contactor B – Circuit stuck closed | – |
| P1A28 | Hybrid propulsion battery assembly contactor B – Circuit stuck open | – |
| P1A29 | High voltage system service connector, circuit B – Circuit open | – |
| P1A2A | Hybrid propulsion system, charging system disabled – No communication with other systems | – |
| P1A2B | Air conditioning refrigerant distribution valve B – Circuit open | – |
| P1A2C | Air conditioning refrigerant distribution valve B – Control circuit signal low | – |
| P1A2D | Air conditioning refrigerant distribution valve B – Control circuit signal high | – |
| P1A2E | Battery charger cooling air flap – Control circuit open | – |
| P1A2F | Battery charger cooling air flap – Control circuit signal low | – |
| P1A30 | Battery charger cooling air flap – Control circuit signal high | – |
| P1A31 | Battery charger cooling air flap – Flap stuck open | – |
| P1A32 | Battery charger cooling air flap – Flap stuck closed | – |
| P1A33 | Battery charger cooling air flap – Malfunction | – |
| P1A34 | Battery charger cooling air flap position sensor – Incorrect operation | – |
| P1A35 | Battery charger cooling air flap position sensor – Circuit malfunction/range | – |
| P1A36 | Battery charger cooling air flap position sensor – Signal low | – |
| P1A37 | Battery charger cooling air flap position sensor – Signal high | – |
| P1A38 | Battery charger cooling air flap position sensor – Intermittent circuit interruption | – |
| P1A39 | Hybrid propulsion battery temperature sensor(s) – Multiple sensor correlation | – |
| P1A3A | Hybrid propulsion battery voltage system – Multiple sensor correlation | – |
| P3498 | Cylinder deactivation system, cylinder 1 – Malfunction | – |
| P3499 | Cylinder deactivation system, cylinder 2 – Malfunction | – |
| P349A | Cylinder deactivation system, cylinder 3 – Malfunction | – |
| P349B | Cylinder deactivation system, cylinder 4 – Malfunction | – |
| P349C | Cylinder deactivation system, cylinder 5 – Malfunction | – |
| P349D | Cylinder deactivation system, cylinder 6 – Malfunction | – |
| P349E | Cylinder deactivation system, cylinder 7 – Malfunction | – |
| P349F | Cylinder deactivation system, cylinder 8 – Malfunction | – |
| P34A0 | Cylinder deactivation system, cylinder 9 – Malfunction | – |
| P34A1 | Cylinder deactivation system, cylinder 10 – Malfunction | – |
| P34A2 | Cylinder deactivation system, cylinder 11 – Malfunction | – |
| P34A3 | Cylinder deactivation system, cylinder 12 – Malfunction | – |
| U1021 | Communication transmission, air conditioning compressor clutch status – No signal/incorrect signal | – |
| U1039 | Communication transmission, vehicle speed – No signal/incorrect signal | – |
| U1041 | Communication transmission, vehicle speed – No signal/incorrect signal | – |
| U1051 | Communication transmission, brake system – No signal/incorrect signal | – |
| U1073 | Communication transmission, engine coolant fan motor status – No signal/incorrect signal | – |
| U1075 | Communication transmission, engine oil temperature – No signal/incorrect signal | – |
| U1089 | Communication transmission, suspension system – No signal/incorrect signal | – |
| U1098 | Communication transmission, cruise control – No signal/incorrect signal | – |
| U1130 | Communication transmission, fuel system – No signal/incorrect signal | – |
| U1131 | Communication transmission, fuel pump status – No signal/incorrect signal | – |
| U1135 | Communication transmission, ignition switch/starter motor – No signal/incorrect signal | – |
| U1147 | Communication transmission, alarm system – No signal/incorrect signal | – |
| U1243 | Communication transmission, exterior signals – No signal/incorrect signal | – |
| U1262 | Communication transmission – Bus fault | – |
| U1341 | Communication transmission, vehicle speed detection function – No signal/incorrect signal | – |
| U1451 | Communication transmission, immobilizer – No signal/incorrect signal (vehicle immobilized) | Wiring, immobilizer control module |
| U1900 | CAN data bus – Incorrect operation | Wiring |
| U1950 | Data bus – Defective communication | – |
| U2023 | Fault code from other control module | – |
| U2050 | No active application | – |
| U2051 | One or more calibration files missing/corrupted | – |
| U2064 | Warning light activation requested by other control module | – |
| U210B | Fuel pump control module, passive security system control module – Communication signal loss | – |
| U2195 | Communication transmission – Steering column switch data invalid | Wiring, steering column switches |
