Chevrolet OBD2 Codes: Decoding Your Check Engine Light

Navigating car troubles can be stressful, especially when that ominous check engine light illuminates on your Chevrolet dashboard. Thankfully, modern vehicles like Chevrolets are equipped with an On-Board Diagnostic system, specifically OBD2, which generates codes to pinpoint potential issues. Understanding these Codigos Obd2 Chevrolet is the first step towards effective car repair and maintenance.

This comprehensive guide delves into the world of Chevrolet OBD2 codes, providing you with a detailed list and insights into how to interpret them. Whether you’re a seasoned mechanic or a Chevrolet owner looking to understand your vehicle better, this resource will help you decipher those cryptic codes and take informed action.

Decoding Chevrolet OBD2 Powertrain Codes (P0000 – P0499)

OBD2 codes are standardized across the automotive industry, but understanding the specific codes relevant to your Chevrolet is crucial. The following list focuses on powertrain codes (P-codes), which are the most common type of OBD2 codes you might encounter. These codes relate to the engine, transmission, and related systems that power your Chevrolet.

• P0000 – No trouble code
• P0001 – Fuel Volume Regulator Control Circuit / Open
• P0002 – Fuel Volume Regulator Control Circuit Range/Performance
• P0003 – Fuel Volume Regulator Control Circuit Low
• P0004 – Fuel Volume Regulator Control Circuit High
• P0005 – Fuel Shutoff Valve Control Circuit / Open
• P0006 – Fuel Shutoff Valve Control Circuit Low
• P0007 – Fuel Shutoff Valve Control Circuit High
• P0008 – Engine Position System Performance – Bank 1
• P0009 – Engine Position System Performance – Bank 2
• P0010 – Intake Camshaft Position Actuator Circuit / Open (Bank 1)
• P0011 – Intake Camshaft Position Timing – Over-Advanced (Bank 1)
• P0012 – Intake Camshaft Position Timing – Over-Retarded (Bank 1)
• P0013 – Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)
• P0014 – Exhaust Camshaft Position Timing – Over-Advanced (Bank 1)
• P0015 – Exhaust Camshaft Position Timing – Over-Retarded (Bank 1)
• P0016 – Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A
• P0017 – Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B
• P0018 – Crankshaft Position Camshaft Position Correlation Bank 2 Sensor A
• P0019 – Crankshaft Position Camshaft Position Correlation Bank 2 Sensor B
• P0020 – Intake Camshaft Position Actuator Circuit / Open (Bank 2)
• P0021 – Intake Camshaft Position Timing – Over-Advanced (Bank 2)
• P0022 – Intake Camshaft Position Timing – Over-Retarded (Bank 2)
• P0023 – Exhaust Camshaft Position Actuator Circuit / Open (Bank 2)
• P0024 – Exhaust Camshaft Position Timing – Over-Advanced (Bank 2)
• P0025 – Exhaust Camshaft Position Timing – Over-Retarded (Bank 2)
• P0026 – Intake Valve Control Solenoid Circuit Range/Performance (Bank 1)
• P0027 – Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 1)
• P0028 – Intake Valve Control Solenoid Circuit Range/Performance (Bank 2)
• P0029 – Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 2)
• P0030 – Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 1
• P0031 – Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1
• P0032 – Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 1
• P0033 – Turbo/Super Charger Bypass Valve Control Circuit / Open
• P0034 – Turbo/Super Charger Bypass Valve Control Circuit Low
• P0035 – Turbo/Super Charger Bypass Valve Control Circuit High
• P0036 – Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2
• P0037 – Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2
• P0038 – Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 2
• P0039 – Turbo/Super Charger Bypass Valve Control Circuit Range/Performance
• P0040 – Oxygen Sensor Signals Swapped Bank 1 Sensor 1 / Bank 2 Sensor 1
• P0041 – Oxygen Sensor Signals Swapped Bank 1 Sensor 2 / Bank 2 Sensor 2
• P0042 – HO2S Heater Control Circuit (Bank 1, Sensor 3)
• P0043 – HO2S Heater Control Circuit Low (Bank 1, Sensor 3)
• P0044 – HO2S Heater Control Circuit High (Bank 1, Sensor 3)
• P0045 – Turbo/Super Charger Boost Control Solenoid Circuit /Open
• P0046 – Turbo/Super Charger Boost Control Solenoid Circuit Range/Performance
• P0047 – Turbo/Super Charger Boost Control Solenoid Circuit Low
• P0048 – Turbo/Super Charger Boost Control Solenoid Circuit High
• P0049 – Turbo/Super Charger Turbine Overspeed
• P0050 – Heated Oxygen Sensor (HO2S) Heater Circuit Bank 1 Sensor 1
• P0051 – Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1
• P0052 – Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 1
• P0053 – HO2S Heater Resistance Bank 1 Sensor 1 (PCM)
• P0054 – HO2S Heater Resistance Bank 1 Sensor 2 (PCM)
• P0055 – HO2S Heater Resistance Bank 1 Sensor 3 (PCM)
• P0056 – Heated Oxygen Sensor (HO2S) Heater Circuit Bank 1 Sensor 2
• P0057 – Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2
• P0058 – Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 2
• P0059 – HO2S Heater Resistance (Bank 1, Sensor 1)
• P0060 – HO2S Heater Resistance (Bank 1, Sensor 2)
• P0061 – HO2S Heater Resistance (Bank 1, Sensor 3)
• P0062 – HO2S Heater Control Circuit (Bank 1, Sensor 3)
• P0063 – HO2S Heater Control Circuit Low (Bank 1, Sensor 3)
• P0064 – HO2S Heater Control Circuit High (Bank 1, Sensor 3)
• P0065 – Air Assisted Injector Control Range/Performance
• P0066 – Air Assisted Injector Control Circuit or Circuit Low
• P0067 – Air Assisted Injector Control Circuit or Circuit High
• P0068 – MAP / MAF – Throttle Position Correlation
• P0069 – MAP – Barometric Pressure Correlation
• P0070 – Ambient Air Temperature Sensor Circuit
• P0071 – Ambient Air Temperature Sensor Range/Performance
• P0072 – Ambient Air Temperature Sensor Circuit Low Input
• P0073 – Ambient Air Temperature Sensor Circuit High Input
• P0074 – Ambient Air Temperature Sensor Circuit Intermittent/Erratic
• P0075 – Intake Valve Control Circuit (Bank 1)
• P0076 – Intake Valve Control Circuit Low (Bank 1)
• P0077 – Intake Valve Control Circuit High (Bank 1)
• P0078 – Exhaust Valve Control Circuit (Bank 1)
• P0079 – Exhaust Valve Control Circuit Low (Bank 1)
• P0080 – Exhaust Valve Control Circuit High (Bank 1)
• P0081 – Intake Valve Control Circuit (Bank 2)
• P0082 – Intake Valve Control Circuit Low (Bank 2)
• P0083 – Intake Valve Control Circuit High (Bank 2)
• P0084 – Exhaust Valve Control Circuit (Bank 2)
• P0085 – Exhaust Valve Control Circuit Low (Bank 2)
• P0086 – Exhaust Valve Control Circuit High (Bank 2)
• P0087 – Fuel Rail/System Pressure – Too Low
• P0088 – Fuel Rail/System Pressure – Too High
• P0089 – Fuel Pressure Regulator Performance
• P0090 – Fuel Pressure Regulator Control Circuit
• P0091 – Fuel Pressure Regulator Control Circuit Low
• P0092 – Fuel Pressure Regulator Control Circuit High
• P0093 – Fuel System Leak Detected – Large Leak
• P0094 – Fuel System Leak Detected – Small Leak
• P0095 – Intake Air Temperature Sensor 2 Circuit
• P0096 – Intake Air Temperature Sensor 2 Circuit Range/Performance
• P0097 – Intake Air Temperature Sensor 2 Circuit Low Input
• P0098 – Intake Air Temperature Sensor 2 Circuit High Input
• P0099 – Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic
• P0100 – Mass or Volume Air flow Circuit Malfunction
• P0101 – Mass or Volume Air flow Circuit Range/Performance Problem
• P0102 – Mass or Volume Air Flow Circuit low Input
• P0103 – Mass or Volume Air flow Circuit High Input
• P0104 – Mass or Volume Air flow Circuit Intermittent
• P0105 – Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
• P0106 – Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
• P0107 – Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
• P0108 – Manifold Absolute Pressure/Barometric Pressure Circuit High Input
• P0109 – Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent
• P0110 – Intake Air Temperature Circuit Malfunction
• P0111 – Intake Air Temperature Circuit Range/Performance Problem
• P0112 – Intake Air Temperature Circuit Low Input
• P0113 – Intake Air Temperature Circuit High Input
• P0114 – Intake Air Temperature Circuit Intermittent
• P0115 – Engine Coolant Temperature Circuit Malfunction
• P0116 – Engine Coolant Temperature Circuit Range/Performance Problem
• P0117 – Engine Coolant Temperature Circuit Low Input
• P0118 – Engine Coolant Temperature Circuit High Input
• P0119 – Engine Coolant Temperature Circuit Intermittent
• P0120 – Throttle Pedal Position Sensor/Switch A Circuit Malfunction
• P0121 – Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem
• P0122 – Throttle/Pedal Position Sensor/Switch A Circuit Low Input
• P0123 – Throttle/Pedal Position Sensor/Switch A Circuit High Input
• P0124 – Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
• P0125 – Insufficient Coolant Temperature for Closed Loop Fuel Control
• P0126 – Insufficient Coolant Temperature for Stable Operation
• P0127 – Intake Air Temperature Too High
• P0128 – Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)
• P0129 – Barometric Pressure Too Low
• P0130 – O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
• P0131 – O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
• P0132 – O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
• P0133 – O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
• P0134 – O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
• P0135 – O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
• P0136 – O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)
• P0137 – O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
• P0138 – O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
• P0139 – O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
• P0140 – O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
• P0141 – O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
• P0142 – O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)
• P0143 – O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
• P0144 – O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)
• P0145 – O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
• P0146 – O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
• P0147 – O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3)
• P0148 – Fuel Delivery Error
• P0149 – Fuel Timing Error
• P0150 – O2 Sensor Circuit Malfunction (Bank 2 Sensor 1)
• P0151 – O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)
• P0152 – O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)
• P0153 – O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)
• P0154 – O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
• P0155 – O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
• P0156 – O2 Sensor Circuit Malfunction (Bank 2 Sensor 2)
• P0157 – O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
• P0158 – O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)
• P0159 – O2 Sensor Circuit Slow Response (Bank 2 Sensor 2)
• P0160 – O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
• P0161 – O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
• P0162 – O2 Sensor Circuit Malfunction (Bank 2 Sensor 3)
• P0163 – O2 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
• P0164 – O2 Sensor Circuit High Voltage (Bank 2 Sensor 3)
• P0165 – O2 Sensor Circuit Slow Response (Bank 2 Sensor 3)
• P0166 – O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
• P0167 – O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)
• P0168 – Engine Fuel Temperature Too High
• P0169 – Incorrect Fuel Composition
• P0170 – Fuel Trim Malfunction (Bank 1)
• P0171 – System Too Lean (Bank 1)
• P0172 – System Too Rich (Bank 1)
• P0173 – Fuel Trim Malfunction (Bank 2)
• P0174 – System Too Lean (Bank 2)
• P0175 – System Too Rich (Bank 2)
• P0176 – Fuel Composition Sensor Circuit Malfunction
• P0177 – Fuel Composition Sensor Circuit Range/Performance
• P0178 – Fuel Composition Sensor Circuit Low Input
• P0179 – Fuel Composition Sensor Circuit High Input
• P0180 – Fuel Temperature Sensor A Circuit Malfunction
• P0181 – Fuel Temperature Sensor A Circuit Performance
• P0182 – Fuel Temperature Sensor A Circuit low Input
• P0183 – Fuel Temperature Sensor A Circuit Intermittent
• P0184 – Fuel Temperature Sensor A Circuit Intermittent
• P0185 – Fuel Temperature Sensor B Circuit Malfunction
• P0186 – Fuel Temperature Sensor B Circuit Range/Performance
• P0187 – Fuel Temperature Sensor B Circuit Low Input
• P0188 – Fuel Temperature Sensor B Circuit High Input
• P0189 – Fuel Temperature Sensor B Circuit Intermittent
• P0190 – Fuel Rail Pressure Sensor Circuit Malfunction
• P0191 – Fuel Rail Pressure Sensor Circuit Range/Performance
• P0192 – Fuel Rail Pressure Sensor Circuit Low Input
• P0193 – Fuel Rail Pressure Sensor Circuit High Input
• P0194 – Fuel Rail Pressure Sensor Circuit Intermittent
• P0195 – Engine Oil Temperature Sensor Malfunction
• P0196 – Engine Oil Temperature Sensor Range/Performance
• P0197 – Engine Oil Temperature Sensor Low
• P0198 – Engine Oil Temperature Sensor High
• P0199 – Engine Oil Temperature Sensor Intermittent
• P0200 – Injector Circuit Malfunction
• P0201 – Injector Circuit Malfunction – Cylinder 1
• P0202 – Injector Circuit Malfunction – Cylinder 2
• P0203 – Injector Circuit Malfunction – Cylinder 3
• P0204 – Injector Circuit Malfunction – Cylinder 4
• P0205 – Injector Circuit Malfunction – Cylinder 5
• P0206 – Injector Circuit Malfunction – Cylinder 6
• P0207 – Injector Circuit Malfunction – Cylinder 7
• P0208 – Injector Circuit Malfunction – Cylinder 8
• P0209 – Injector Circuit Malfunction – Cylinder 9
• P0210 – Injector Circuit Malfunction – Cylinder 10
• P0211 – Injector Circuit Malfunction – Cylinder 11
• P0212 – Injector Circuit Malfunction – Cylinder 12
• P0213 – Cold Start Injector 1 Malfunction
• P0214 – Cold Start Injector 2 Malfunction
• P0215 – Engine Shutoff Solenoid Malfunction
• P0216 – Injection Timing Control Circuit Malfunction
• P0217 – Engine Overtemp Condition
• P0218 – Transmission Over Temperature Condition
• P0219 – Engine Over Speed Condition
• P0220 – Throttle/Pedal Position Sensor/Switch B Circuit Malfunction
• P0221 – Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance Problem
• P0222 – Throttle/Pedal Position Sensor/Switch B Circuit Low Input
• P0223 – Throttle/Pedal Position Sensor/Switch B Circuit High Input
• P0224 – Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
• P0225 – Throttle/Pedal Position Sensor/Switch C Circuit Malfunction
• P0226 – Throttle/Pedal Position Sensor/Switch C Circuit Range/Performance Problem
• P0227 – Throttle/Pedal Position Sensor/Switch C Circuit Low Input
• P0228 – Throttle/Pedal Position Sensor/Switch C Circuit High Input
• P0229 – Throttle/Pedal Position Sensor/Switch C Circuit Intermittent
• P0230 – Fuel Pump Primary Circuit Malfunction
• P0231 – Fuel Pump Secondary Circuit Low
• P0232 – Fuel Pump Secondary Circuit Intermittent
• P0233 – Fuel Pump Secondary Circuit Intermittent
• P0234 – Engine Overboost Condition
• P0235 – Turbocharger Boost Sensor A Circuit Malfunction
• P0236 – Turbocharger Boost Sensor A Circuit Range/Performance.
• P0237 – Turbocharger Boost Sensor A Circuit Low
• P0238 – Turbocharger Boost Sensor A Circuit High
• P0239 – Turbocharger Boost Sensor B Circuit Malfunction
• P0240 – Turbocharger Boost Sensor B Circuit Range/Performance
• P0241 – Turbocharger Boost Sensor B Circuit Low
• P0242 – Turbocharger Boost Sensor B Circuit High
• P0243 – Turbocharger Wastegate Solenoid A Malfunction
• P0244 – Turbocharger Wastegate Solenoid A Range/Performance
• P0245 – Turbocharger Wastegate Solenoid A low
• P0246 – Turbocharger Wastegate Solenoid A High
• P0247 – Turbocharger Wastegate Solenoid B Malfunction
• P0248 – Turbocharger Wastegate Solenoid B Range/Performance
• P0249 – Turbocharger Wastegate Solenoid B Low
• P0250 – Turbocharger Wastegate Solenoid B High
• P0251 – Injection Pump Fuel Metering Control A Malfunction (Cam/Rotor/Injector)
• P0252 – Injection Pump Fuel Metering Control A Range/Performance (Cam/Rotor/Injector)
• P0253 – Injection Pump Fuel Metering Control A Low (Cam/Rotor/Injector)
• P0254 – Injection Pump Fuel Metering Control A High (Cam/Rotor/Injector)
• P0255 – Injection Pump Fuel Metering Control A Intermittent (Cam/Rotor/Injector)
• P0256 – Injection Pump Fuel Metering Control B Malfunction (Cam/Rotor/Injector)
• P0257 – Injection Pump Fuel Metering Control B Low (Cam/Rotor/Injector)
• P0258 – Injection Pump Fuel Metering Control B Low (Cam/Rotor/Injector)
• P0259 – Injection lump Fuel Metering Control B High (Cam/Rotor/Injector)
• P0260 – Injection Pump Fuel Metering Control B Intermittent (Cam/Rotor/Injector)
• P0261 – Cylinder 1 Injector Circuit Low
• P0262 – Cylinder 1 Injector Circuit High
• P0263 – Cylinder 1 Contribution/Balance Fault
• P0264 – Cylinder 2 Injector Circuit Low
• P0265 – Cylinder 2 Injector Circuit High
• P0266 – Cylinder 2 Contribution/Balance Fault
• P0267 – Cylinder 3 Injector Circuit Low
• P0268 – Cylinder 3 Injector Circuit High
• P0269 – Cylinder 3 Contribution/Balance Fault
• P0270 – Cylinder 4 Injector Circuit Low
• P0271 – Cylinder 4 Injector Circuit High
• P0272 – Cylinder 4 Contribution/Balance Fault
• P0273 – Cylinder 5 Injector Circuit Low
• P0274 – Cylinder 5 Injector Circuit High
• P0275 – Cylinder 5 Contribution/Balance Fault
• P0276 – Cylinder 6 Injector Circuit Low
• P0277 – Cylinder 6 Injector Circuit High
• P0278 – Cylinder 6 Contribution/Balance Fault
• P0279 – Cylinder 7 Injector Circuit Low
• P0280 – Cylinder 7 Injector Circuit High
• P0281 – Cylinder 7 Contribution/Balance Fault
• P0282 – Cylinder 8 Injector Circuit Low
• P0283 – Cylinder 8 Injector Circuit High
• P0284 – Cylinder 8 Contribution/Balance Fault
• P0285 – Cylinder 9 Injector Circuit Low
• P0286 – Cylinder 9 Injector Circuit High
• P0287 – Cylinder 9 Contribution/Balance Fault
• P0288 – Cylinder 10 Injector Circuit Low
• P0289 – Cylinder 10 Injector Circuit High
• P0290 – Cylinder 10 Contribution/Balance Fault
• P0291 – Cylinder 11 Injector Circuit Low
• P0292 – Cylinder 11 Injector Circuit High
• P0293 – Cylinder 11 Contribution/Balance Fault
• P0294 – Cylinder 12 Injector Circuit Low
• P0295 – Cylinder 12 Injector Circuit High
• P0296 – Cylinder 12 Contribution/Balance Fault
• P0297 – Vehicle Overspeed Condition
• P0298 – Engine Oil Over Temperature
• P0299 – Turbo / Super Charger Underboost
• P0300 – Random/Multiple Cylinder Misfire Detected
• P0301 – Cylinder 1 Misfire Detected
• P0302 – Cylinder 2 Misfire Detected
• P0303 – Cylinder 3 Misfire Detected
• P0304 – Cylinder 4 Misfire Detected
• P0305 – Cylinder 5 Misfire Detected
• P0306 – Cylinder 6 Misfire Detected
• P0307 – Cylinder 7 Misfire Detected
• P0308 – Cylinder 8 Misfire Detected
• P0309 – Cylinder 9 Misfire Detected
• P0310 – Cylinder 10 Misfire Detected
• P0311 – Cylinder 11 Misfire Detected
• P0312 – Cylinder 12 Misfire Detected
• P0313 – Misfire Detected with Low Fuel
• P0314 – Single Cylinder Misfire (Cylinder not Specified)
• P0315 – Crankshaft Position System Variation Not Learned
• P0316 – Misfire Detected On Startup (First 1000 Revolutions)
• P0317 – Rough Road Hardware Not Present
• P0318 – Rough Road Sensor A Signal Circuit
• P0319 – Rough Road Sensor B Signal Circuit
• P0320 – Ignition/Distributor Engine Speed Input Circuit Malfunction
• P0321 – Ignition/Distributor Engine Speed Input Circuit Range/Performance
• P0322 – Ignition/Distributor Engine Speed Input Circuit No Signal
• P0323 – Ignition/Distributor Engine Speed Input Circuit Intermittent
• P0324 – Knock Control System Error
• P0325 – Knock Sensor 1 Circuit (Bank 1 or Single Sensor)
• P0326 – Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
• P0327 – Knock Sensor 1 Circuit low Input (Bank 1 or Single Sensor)
• P0328 – Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
• P0329 – Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)
• P0330 – Knock Sensor 2 Circuit (Bank 2)
• P0331 – Knock Sensor 2 Circuit Range/Performance (Bank 2)
• P0332 – Knock Sensor 2 Circuit Low Input (Bank 2)
• P0333 – Knock Sensor 2 Circuit High Input (Bank 2)
• P0334 – Knock Sensor 2 Circuit Input Intermittent (Bank 2)
• P0335 – Crankshaft Position Sensor A Circuit Malfunction
• P0336 – Crankshaft Position Sensor A Circuit Range/Performance
• P0337 – Crankshaft Position Sensor A Circuit Low Input
• P0338 – Crankshaft Position Sensor A Circuit High Input
• P0339 – Crankshaft Position Sensor A Circuit Intermittent
• P0340 – Camshaft Position Sensor Circuit Malfunction
• P0341 – Camshaft Position Sensor Circuit Range/Performance
• P0342 – Camshaft Position Sensor Circuit Low Input
• P0343 – Camshaft Position Sensor Circuit High Input
• P0344 – Camshaft Position Sensor Circuit Intermittent
• P0345 – Camshaft Position Sensor A Circuit (Bank 2)
• P0346 – Camshaft Position Sensor A Circuit Range/Performance (Bank 2)
• P0347 – Camshaft Position Sensor A Circuit Low Input (Bank 2)
• P0348 – Camshaft Position Sensor A Circuit High Input (Bank 2)
• P0349 – Camshaft Position Sensor A Circuit Intermittent (Bank 2)
• P0350 – Ignition Coil Primary/Secondary Circuit Malfunction
• P0351 – Ignition Coil A Primary/Secondary Circuit Malfunction
• P0352 – Ignition Coil B Primary/Secondary Circuit Malfunction
• P0353 – Ignition Coil C Primary/Secondary Circuit Malfunction
• P0354 – Ignition Coil D Primary/Secondary Circuit Malfunction
• P0355 – Ignition Coil E Primary/Secondary Circuit Malfunction
• P0356 – Ignition Coil F Primary/Secondary Circuit Malfunction
• P0357 – Ignition Coil G Primary/Secondary Circuit Malfunction
• P0358 – Ignition Coil H Primary/Secondary Circuit Malfunction
• P0359 – Ignition Coil I Primary/Secondary Circuit Malfunction
• P0360 – Ignition Coil J Primary/Secondary Circuit Malfunction
• P0361 – Ignition Coil K Primary/Secondary Circuit Malfunction
• P0362 – Ignition Coil L Primary/Secondary Circuit Malfunction
• P0363 – Misfire Detected – Fueling Disabled
• P0364 – Ignition Coil L Primary/Secondary Circuit
• P0365 – Camshaft Position Sensor B Circuit (Bank 2)
• P0366 – Camshaft Position Sensor B Circuit Range/Performance (Bank 2)
• P0367 – Camshaft Position Sensor B Circuit Low Input (Bank 2)
• P0368 – Camshaft Position Sensor B Circuit High Input (Bank 2)
• P0369 – Camshaft Position Sensor B Circuit Intermittent (Bank 2)
• P0370 – Timing Reference High Resolution Signal A Malfunction
• P0371 – Timing Reference High Resolution Signal A Too Many Pulses
• P0372 – Timing Reference High Resolution Signal A Too Few Pulses
• P0373 – Timing Reference High Resolution Signal A Intermittent/Erratic Pulses
• P0374 – Timing Reference High Resolution Signal A No Pulses
• P0375 – Timing Reference High Resolution Signal B Malfunction
• P0376 – Timing Reference High Resolution Signal B Too Many Pulses
• P0377 – Timing Reference High Resolution Signal B Too Few Pulses
• P0378 – Timing Reference High Resolution Signal B Intermittent/Erratic Pulses
• P0379 – Timing Reference High Resolution Signal B No Pulses
• P0380 – Glow Plug/Heater Circuit A Malfunction
• P0381 – Glow Plug/Heater Indicator Circuit Malfunction
• P0382 – Glow Plug/Heater Circuit B Malfunction
• P0383 – Glow Plug/Heater Indicator Circuit
• P0384 – Glow Plug/Heater Circuit B
• P0385 – Crankshaft Position Sensor B Circuit Malfunction
• P0386 – Crankshaft Position Sensor B Circuit Range/Performance
• P0387 – Crankshaft Position Sensor B Circuit Low Input
• P0388 – Crankshaft Position Sensor B Circuit High Input
• P0389 – Crankshaft Position Sensor B Circuit Intermittent
• P0390 – Camshaft Position Sensor B Circuit (Bank 2)
• P0391 – Camshaft Position Sensor B Circuit Range/Performance (Bank 2)
• P0392 – Camshaft Position Sensor B Circuit Low Input (Bank 2)
• P0393 – Camshaft Position Sensor B Circuit High Input (Bank 2)
• P0394 – Camshaft Position Sensor B Circuit Intermittent (Bank 2)
• P0395 – Camshaft Position Sensor B Circuit High Input (Bank 2)
• P0396 – Camshaft Position Sensor B Circuit Intermittent (Bank 2)
• P0400 – Exhaust Gas Recirculation Flow Malfunction
• P0401 – Exhaust Gas Recirculation Flow Insufficient Detected
• P0402 – Exhaust Gas Recirculation Flow Excessive Detected
• P0403 – Exhaust Gas Recirculation Circuit Malfunction
• P0404 – Exhaust Gas Recirculation Circuit Range/Performance
• P0405 – Exhaust Gas Recirculation Sensor A Circuit Low
• P0406 – Exhaust Gas Recirculation Sensor A Circuit High
• P0407 – Exhaust Gas Recirculation Sensor B Circuit Low
• P0408 – Exhaust Gas Recirculation Sensor B Circuit High
• P0409 – Exhaust Gas Recirculation Sensor A Circuit
• P0410 – Secondary Air Injection System Malfunction
• P0411 – Secondary Air Injection System Incorrect Flow Detected
• P0412 – Secondary Air Injection System Switching Valve A Circuit Malfunction
• P0413 – Secondary Air Injection System Switching Valve A Circuit Open
• P0414 – Secondary Air Injection System Switching Valve A Circuit Shorted
• P0415 – Secondary Air Injection System Switching Valve B Circuit Malfunction
• P0416 – Secondary Air Injection System Switching Valve B Circuit Open
• P0417 – Secondary Air Injection System Switching Valve B Circuit Shorted
• P0418 – Secondary Air Injection System Relay A circuit Malfunction
• P0419 – Secondary Air Injection System Relay B Circuit Malfunction
• P0420 – Catalyst System Efficiency Below Threshold (Bank 1)
• P0421 – Warm Up Catalyst Efficiency Below Threshold (Bank 1)
• P0422 – Main Catalyst Efficiency Below Threshold (Bank 1)
• P0423 – Heated Catalyst Efficiency Below Threshold (Bank 1)
• P0424 – Heated Catalyst Temperature Below Threshold (Bank 1)
• P0425 – Catalyst Temperature Sensor (Bank 1 Sensor 1)
• P0426 – Catalyst Temperature Sensor Range/Performance (Bank 1 Sensor 1)
• P0427 – Catalyst Temperature Sensor Low Input (Bank 1 Sensor 1)
• P0428 – Catalyst Temperature Sensor High Input (Bank 1 Sensor 1)
• P0429 – Catalyst Heater Control Circuit (Bank 1)
• P0430 – Catalyst System Efficiency Below Threshold (Bank 2)
• P0431 – Warm Up Catalyst Efficiency Below Threshold (Bank 2)
• P0432 – Main Catalyst Efficiency Below Threshold (Bank 2)
• P0433 – Heated Catalyst Efficiency Below Threshold (Bank 2)
• P0434 – Heated Catalyst Temperature Below Threshold (Bank 2)
• P0435 – Catalyst Temperature Sensor (Bank 2 Sensor 1)
• P0436 – Catalyst Temperature Sensor Range/Performance (Bank 2 Sensor 1)
• P0437 – Catalyst Temperature Sensor Low Input (Bank 2 Sensor 1)
• P0438 – Catalyst Temperature Sensor High Input (Bank 2 Sensor 1)
• P0439 – Catalyst Heater Control Circuit (Bank 2)
• P0440 – Evaporative Emission Control System Malfunction
• P0441 – Evaporative Emission Control System Incorrect Purge flow
• P0442 – Evaporative Emission Control System leak Detected (small leak)
• P0443 – Evaporative Emission Control System Purge Control Valve circuit Malfunction
• P0444 – Evaporative Emission Control System Purge Control Valve Circuit Open
• P0445 – Evaporative Emission Control System Purge Control Valve Circuit Shorted
• P0446 – Evaporative Emission Control System Vent Control Circuit Malfunction
• P0447 – Evaporative Emission Control System Vent Control Circuit Open
• P0448 – Evaporative Emission Control System Vent Control Circuit Shorted
• P0449 – Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
• P0450 – Evaporative Emission Control System Pressure Sensor Malfunction
• P0451 – Evaporative Emission Control System Pressure Sensor Range/Performance
• P0452 – Evaporative Emission Control System Pressure Sensor Low Input
• P0453 – Evaporative Emission Control System Pressure Sensor High Input
• P0454 – Evaporative Emission Control System Pressure Sensor Intermittent
• P0455 – Evaporative Emission Control System Tank Detected (gross leak)
• P0456 – Evaporative Emission System Leak Detected (very small leak)
• P0457 – Evaporative Emission System Leak Detected (fuel cap loose/off)
• P0458 – Evaporative Emission System Purge Control Valve Circuit Low
• P0459 – Evaporative Emission System Purge Control Valve Circuit High
• P0460 – Fuel Level Sensor Circuit Malfunction
• P0461 – Fuel Level Sensor Circuit Range/Performance
• P0462 – Fuel Level Sensor Circuit Low Input
• P0463 – Fuel Level Sensor Circuit High Input
• P0464 – Fuel Level Sensor Circuit Intermittent
• P0465 – Purge Flow Sensor Circuit Malfunction
• P0466 – Purge Flow Sensor Circuit Range/Performance
• P0467 – Purge Flow Sensor Circuit Low Input
• P0468 – Purge Flow Sensor Circuit High Input
• P0469 – Purge Flow Sensor Circuit Intermittent
• P0470 – Exhaust Pressure Sensor Malfunction
• P0471 – Exhaust Pressure Sensor Range/Performance
• P0472 – Exhaust Pressure Sensor Low
• P0473 – Exhaust Pressure Sensor High
• P0474 – Exhaust Pressure Sensor Intermittent
• P0475 – Exhaust Pressure Control Valve Malfunction
• P0476 – Exhaust Pressure Control Valve Range/Performance
• P0477 – Exhaust Pressure Control Valve Low
• P0478 – Exhaust Pressure Control Valve High
• P0479 – Exhaust Pressure Control Valve Intermittent
• P0480 – Cooling Fan 1 Control Circuit Malfunction
• P0481 – Cooling Fan 2 Control Circuit Malfunction
• P0482 – Cooling Fan 3 Control Circuit Malfunction
• P0483 – Cooling Fan Rationality Check Malfunction
• P0484 – Cooling Fan Circuit Over Current
• P0485 – Cooling Fan Power/Ground Circuit Malfunction
• P0486 – Exhaust Gas Recirculation Sensor B Circuit
• P0487 – Exhaust Gas Recirculation Throttle Position Control Circuit
• P0488 – Exhaust Gas Recirculation Throttle Position Control Range/Performance
• P0489 – Exhaust Gas Recirculation Control Circuit Low
• P0490 – Exhaust Gas Recirculation Control Circuit High
• P0491 – Secondary Air Injection System (Bank 1)
• P0492 – Secondary Air Injection System (Bank 2)
• P0493 – Fan Overspeed (clutch locked)
• P0494 – Fan Speed Low
• P0495 – Fan Speed High
• P0496 – Evaporative Emission System High Purge Flow
• P0497 – Evaporative Emission System Low Purge Flow
• P0498 – Evaporative Emission System Vent Control Circuit Low
• P0499 – Evaporative Emission System Vent Control Circuit High

This extensive list covers a wide range of potential powertrain issues your Chevrolet might encounter. However, a code itself is just the starting point.

Understanding and Diagnosing Chevrolet OBD2 Codes

When your Chevrolet’s check engine light comes on, it signals that the vehicle’s computer has detected a problem. This problem is communicated through an OBD2 code. Here’s how to approach these codes:

1. Retrieve the Code: Use an OBD2 scanner to read the stored codes. These scanners are readily available online or at auto parts stores. Simply plug the scanner into the OBD2 port, typically located under the dashboard on the driver’s side.

2. Understand the Code: Consult the list above or use online resources to understand the meaning of your specific codigos obd2 chevrolet. Note down the code and its description.

3. Initial Investigation: Sometimes, a code might be triggered by a minor issue. For example, a loose gas cap can cause an EVAP system code. Check for obvious problems like loose gas caps, fluid leaks, or disconnected sensors.

4. Further Diagnosis (If Needed): If the issue isn’t obvious, further diagnosis is needed. This might involve:

   • Visual Inspection: Carefully inspect the related system (e.g., fuel system for fuel-related codes, air intake for air flow codes).
   • Sensor Testing: Use a multimeter to test sensors and circuits related to the code.
   • Component Testing: Test actuators or other components that the code might indicate are faulty.

5. Professional Help: If you’re not comfortable with auto repair or the code points to a complex issue, it’s always best to consult a qualified mechanic. They have the expertise and tools to accurately diagnose and repair your Chevrolet.

Alt text: A handheld OBD2 scanner tool displaying diagnostic trouble codes on its screen, plugged into a car’s OBD2 port for vehicle health analysis.

Common Chevrolet OBD2 Codes and Potential Issues

While any code on the list can appear on a Chevrolet, some are more common than others. Knowing these common codigos obd2 chevrolet can give you a head start in diagnosing potential problems:

• P0171 & P0174 (System Too Lean): Often related to vacuum leaks, a faulty MAF sensor, or fuel delivery issues.
• P0300 – P0308 (Misfire Codes): Can be caused by spark plugs, ignition coils, fuel injectors, or vacuum leaks. Misfires are common in older vehicles or those with deferred maintenance.
• P0420 & P0430 (Catalyst Efficiency Codes): Often indicate a failing catalytic converter, but can also be caused by exhaust leaks or faulty oxygen sensors.
• P0440 series (EVAP System Codes): Relate to evaporative emission control system leaks, often due to a loose gas cap, but can also involve other EVAP components.
• P0101 & P0102 (MAF Sensor Codes): Indicate problems with the Mass Air Flow sensor, which measures the air entering the engine. A faulty MAF sensor can cause various engine performance issues.

Staying Ahead of Chevrolet OBD2 Issues

Understanding codigos obd2 chevrolet is a valuable skill for any Chevrolet owner. By being proactive and addressing issues promptly, you can:

• Prevent further damage: Addressing a minor issue early can prevent it from escalating into a more costly repair.
• Maintain fuel efficiency: Engine problems can negatively impact fuel economy.
• Ensure vehicle reliability: Regular maintenance and timely repairs keep your Chevrolet running smoothly and reliably.
• Increase vehicle lifespan: Taking care of your car extends its life and value.

While this guide provides a comprehensive list of powertrain OBD2 codes, remember that proper diagnosis often requires expertise and specialized tools. Don’t hesitate to seek professional help when needed to ensure your Chevrolet receives the best possible care.