Understanding your Toyota’s onboard diagnostics system is crucial for modern car maintenance. The OBD2 (On-Board Diagnostics II) system provides access to a wealth of data about your vehicle’s health and performance. At the heart of this system is the OBD2 connector, a standardized port that allows diagnostic tools to communicate with your car’s computer. This article delves into the specifics of the Toyota Obd2 Connector Pinout, helping you understand how to interface with your vehicle’s diagnostic system effectively.
Understanding the OBD2 Connector in Your Toyota
Since the early 2000s, OBD2 has been a standard feature in most vehicles, including Toyota. This standardization means that regardless of the model, you’ll typically find a 16-pin Diagnostic Link Connector (DLC) located within easy reach, usually under the dashboard on the driver’s side. However, knowing the Toyota OBD2 pinout is essential to ensure correct connections and accurate data retrieval when using diagnostic scanners or tools.
Toyota OBD2 Connector Pinout Diagram and Explanation
The following table outlines the standard Toyota OBD2 connector pinout, detailing the function of each pin. While the physical connector is standard across most vehicles, understanding the pin assignments specific to Toyota can be beneficial for advanced diagnostics and troubleshooting.
| Pin | Signal | Description |
|---|---|---|
| 2 | J1850 Bus+ | Used in older Toyota models for J1850 communication protocols. |
| 4 | CGND | Chassis Ground. Provides a ground connection to the vehicle’s chassis. |
| 5 | SGND | Signal Ground. Ground reference for signals within the OBD2 system, ensuring signal integrity. |
| 6 | CAN High | CAN (Controller Area Network) Bus High. Part of the CAN bus communication system, used in most modern Toyota vehicles for high-speed data exchange. |
| 7 | SIL | K-Line (ISO 9141-2 and ISO/DIS 14230-4). Used for communication with various ECUs like Occupant Detection, Immobilizer, Telematics, and Tire Pressure Monitoring Systems in some Toyota models. |
| 9 | TAC | Tachometer signal. Potentially connected to the ECM for tachometer readings, though function may vary. |
| 10 | J1850 Bus- | Used in older Toyota models, complementary signal to J1850 Bus+. |
| 12 | TS | Brake Actuator Assembly signal. Related to the braking system, potentially for diagnostics or control of the brake actuator. |
| 13 | TC | Timing Check. Used for ignition timing adjustments or ABS diagnostic codes in some systems. Functionality can be model-specific. |
| 14 | CAN Low | CAN Bus Low. The second wire of the CAN bus communication system, working in conjunction with CAN High (Pin 6). |
| 15 | L-LINE | L-Line (ISO 9141-2 and ISO/DIS 14230-4). Used in older models, similar to K-Line for serial communication protocols. |
| 16 | +12V | Battery Power. Provides +12V power to the OBD2 diagnostic tool from the vehicle’s battery. |
Pins not listed in this table are typically not connected in Toyota vehicles’ OBD2 implementations.
Alt text: Toyota OBD2 Connector Pinout Table detailing each pin number, signal name, and description for automotive diagnostics and repair.
Toyota OBD2 Compatibility: Protocols and Models
While the connector pinout provides the physical interface, the communication protocols determine how data is exchanged. Toyota utilizes various OBD2 protocols depending on the model and year. Understanding these protocols is vital for selecting the right diagnostic tool and ensuring compatibility.
Here’s a compatibility list showing Toyota models and the OBD2 protocols they typically use. Please note that this list is not exhaustive and can vary based on specific vehicle configurations and regional differences. Always consult your vehicle’s manual for the most accurate information.
| Model | Engine | Year (starting from) | OBD-2 Protocol |
|---|---|---|---|
| Toyota Auris | Diesel (125 HP) | 2007 | CAN |
| 2.2 D CAT D, Diesel (177HP) | 2008 | CAN 11bit (500kb) | |
| 2.0 D-4D, Diesel (126HP) | 2009 | CAN 11bit (500kb) | |
| 1.4 D-4D, Diesel (90HP) | 2010 | CAN 11bit (500kb) | |
| Toyota Avensis | Diesel (101 HP) | 1998 | ISO 14230-4, ISO 9141-2 |
| Diesel (109 HP) | 1999 | ||
| Gasoline (148 HP) | 2001 | ISO 9141-2 | |
| 1.8 VVTi, Gasoline (128 HP) | 2001 | ISO 14230-4, ISO 9141-2 | |
| Gasoline (128 HP) | 2002 | ISO 14230-4, ISO 9141-2 | |
| 2.0 VVTi, Gasoline (145 HP) | 2003 | ||
| 2.0 D-4D, Diesel (116HP) | 2003 | ISO 9141 | |
| 2, Gasoline (150HP) | 2004 | ISO 9141 | |
| D4D T25, Diesel (114 HP) | 2005 | ISO 9141-2 | |
| 2.4 VVT-i, Gasoline (160HP) | 2005 | ISO 9141 | |
| 2.0 D-4D, Diesel (126HP) | 2006 | KWP SLOW | |
| 2.2 DCAT, Diesel (177HP) | 2006 | KWP FAST | |
| Toyota Avensis T22 Facelift | Gasoline (128 HP) | 2000 | ISO 9141-2 |
| Toyota Avensis T25 | Diesel (114 HP) | 2003 | ISO 9141-2 |
| Gasoline (128 HP) | 2003 | ISO 9141-2 | |
| Gasoline (128 HP) | 2003 | ||
| Toyota Aygo | 1, Gasoline (68HP) | 2005 | ISO 9141 |
| , Gasoline (68 HP) | 2006 | ISO 9141-2 | |
| Gasoline (68 HP) | 2006 | ISO 9141-2 | |
| Gasoline (68 HP) | 2007 | ISO 9141-2 | |
| Gasoline (68 HP) | 2008 | ISO 9141-2 | |
| 3 cyl 1000cm3, Gasoline (60HP) | 2008 | ISO 9141 | |
| Gasoline (68 HP) | 2009 | ISO 9141-2 | |
| Gasoline (68 HP) | 2011 | ISO 9141-2 | |
| Gasoline (68 HP) | 2011 | ISO 9141-2 | |
| Toyota Aygo Cool | Gasoline (68 HP) | 2007 | ISO 9141-2 |
| Toyota Camry | 2.4, Gasoline (150HP) | 1999 | ISO 9141 |
| 2002 | ISO 14230-4, ISO 9141-2 | ||
| 2.5, Gasoline (170HP) | 2012 | CAN 11bit (500kb) | |
| Toyota Camry CE | Gasoline (135 HP) | 1997 | |
| Toyota Camry CE | Gasoline (121 HP) | 1997 | |
| Toyota Celica | 1,8 VVTI, Gasoline (207 HP) | 2000 | |
| 1.8 VVTI, Gasoline (195 HP) | 2000 | ||
| 1.8 vvti, Gasoline (143HP) | 2000 | ISO 9141 | |
| Gasoline (190 HP) | 2001 | KW 1281 | |
| Toyota Celica GT-S | 2000 | ISO 14230-4, ISO 9141-2 | |
| Toyota Corolla | 1997 | VPW J1850 | |
| 1.6 VVTi, Gasoline (110HP) | 1999 | ISO 9141 | |
| Gasoline (190 HP) | 2002 | ISO 9141-2 | |
| 1.8 VVTi, Gasoline (192HP) | 2002 | ISO 9141 | |
| 2.0 HDi, Diesel (90HP) | 2003 | ISO 9141 | |
| 1.4 D-4D, Diesel (90HP) | 2004 | CAN 11bit (500kb) | |
| 1.4, Gasoline (97HP) | 2004 | ISO 9141 | |
| 2.0 D-4D, Diesel (115HP) | 2004 | ISO 9141 | |
| 1.4, Gasoline (128 HP) | 2005 | ||
| 2.2 D-4D, Diesel (136HP) | 2006 | KWP SLOW | |
| 2.2 D4-D, Diesel (177HP) | 2006 | KWP SLOW | |
| 2.0 D-4D, Diesel (126HP) | 2011 | CAN 11bit (500kb) | |
| Toyota Corolla (European) | 2002 | ISO 14230-4, ISO 9141-2 | |
| Toyota Corolla CE | Gasoline (121 HP) | 2004 | |
| Toyota Corolla Combi | Gasoline (109 HP) | 2006 | ISO 9141-2 |
| Toyota Corolla E 11 | Diesel (89 HP) | 2001 | |
| 1.4 VVTi, Gasoline (96 HP) | 2000 | ISO 9141-2 | |
| Toyota Corolla E12(T) Combi | Gasoline (109 HP) | 2006 | ISO 9141-2 |
| Toyota Corolla Kombi E12T | (4ZZ-FE) 1,4L 97PS, Gasoline (96 HP) | 2007 | ISO 9141-2 |
| Toyota Corolla Verso | Gasoline (109 HP) | 2002 | ISO 9141-2 |
| Diesel (117 HP) | 2004 | ISO 9141-2 | |
| , Diesel (128 HP) | 2004 | – | |
| Gasoline (135 HP) | 2005 | – | |
| , Gasoline (128 HP) | 2008 | – | |
| Toyota Echo | 1.5, Gasoline (90HP) | 2003 | ISO 9141 |
| Toyota FJ Cruiser | V6 4.0, Gasoline (280HP) | 2007 | CAN 11bit (500kb) |
| Toyota forturner | Diesel (135 HP) | 2007 | |
| Toyota Hilux | 3.0 D-4D, Diesel (171HP) | 2007 | KWP FAST |
| Toyota IQ | 1L, Gasoline (67HP) | 2009 | CAN 11bit (500kb) |
| Toyota Land cruiser D4D | Diesel (219 HP) | 2004 | |
| Toyota lc120 | Diesel (164 HP) | 2004 | |
| Toyota mr2 | 1.8 VVT-i, Gasoline (142HP) | 2000 | ISO 9141 |
| Toyota MR-S | 1.8 vvti, Gasoline (143HP) | 2000 | ISO 9141 |
| Toyota Previa | Gasoline (155 HP) | 2000 | ISO 14230-4, ISO 9141-2 |
| 2.4 vvti, Gasoline (156HP) | 2000 | ISO 9141 | |
| Gasoline (155 HP) | 2002 | ISO 14230-4 | |
| Gasoline (155 HP) | 2004 | ||
| Diesel | 2002 | not compliant | |
| Gasoline (155 HP) | 2001 | ISO 14230-4, ISO 9141-2 | |
| Toyota Prius | Gasoline (105 HP) | 2006 | |
| 1.5, Gasoline (110HP) | 2006 | CAN 11bit (500kb) | |
| Toyota Prius 3 | 1.8, Hyb (136HP) | 2009 | CAN 11bit (500kb) |
| Toyota Prius HW 11 | Gasoline (72 HP) | 2001 | ISO 9141-2 |
| Toyota Prius II | Gasoline (77 HP) | 2007 | CAN |
| Toyota RAV4 | 2.0 VVT-i, Gasoline (150HP) | 2000 | ISO 9141 |
| 2001 | ISO 14230-4, ISO 9141-2 | ||
| Gasoline (148 HP) | 2002 | ISO 14230-4, ISO 9141-2 | |
| Diesel (114 HP) | 2002 | ||
| Diesel (114 HP) | 2004 | ISO 14230-4 | |
| 2.0 D-4D, Diesel (116HP) | 2004 | KWP FAST | |
| D-4D, Diesel (135HP) | 2004 | ISO 9141 | |
| 2.2 D-4D, Diesel (136HP) | 2006 | CAN 11bit (500kb) | |
| 2.2 D-4D, Diesel (177HP) | 2006 | CAN 11bit (500kb) | |
| Diesel (148 HP) | 2009 | ||
| 2.2, Diesel (150HP) | 2009 | CAN 11bit (500kb) | |
| V6, Gasoline (260HP) | 2010 | CAN 11bit (500kb) | |
| Diesel (175 HP) | 2006 | CAN | |
| Toyota Sienna | 3.3, Gasoline (220HP) | 2006 | ISO 9141 |
| Toyota Sienna LE | 1999 | ISO 14230-4, ISO 9141-2 | |
| Toyota Sol Automatik | Gasoline (85 HP) | 2001 | ISO 9141-2 |
| Toyota Solara | 1999 | ISO 14230-4, ISO 9141-2 | |
| Toyota Solara LE | 2000 | ISO 14230-4, ISO 9141-2 | |
| Toyota Tacoma | 1995 | VPW J1850 | |
| 2000 | ISO 14230-4, ISO 9141-2 | ||
| 2002 | ISO 14230-4, ISO 9141-2 | ||
| 4.0 vvti, Gasoline (236HP) | 2006 | KWP FAST | |
| Toyota Tundra | 2000 | ISO 14230-4, ISO 9141-2 | |
| 2001 | ISO 14230-4, ISO 9141-2 | ||
| 2003 | ISO 14230-4, ISO 9141-2 | ||
| 4.7, Gasoline (230HP) | 2003 | ISO 9141 | |
| Toyota Yaris | 1.0, Gasoline (68 HP) | 1999 | ISO 9141-2 |
| Gasoline (85 HP) | 2000 | ||
| 1.3, Gasoline (86HP) | 2000 | ISO 9141 | |
| 1.5 16V, Gasoline (105HP) | 2000 | ISO 9141 | |
| Gasoline (74 HP) | 2002 | ||
| 1.0 VVT-i, Gasoline (65HP) | 2002 | ISO 9141 | |
| 1.4L, Diesel (63HP) | 2003 | ISO 9141 | |
| 1.4 D-4D, Diesel (75HP) | 2003 | ISO 9141 | |
| 1.0 VVTi, Gasoline (68HP) | 2004 | ISO 9141 | |
| Gasoline (86 HP) | 2006 | ||
| 1.4 D-4D, Diesel (90HP) | 2006 | ISO 9141 | |
| Gasoline (74 HP) | 2007 | ISO 14230-4 | |
| 1.3, Gasoline (87HP) | 2009 | CAN 11bit (500kb) | |
| D4-D, Diesel (90HP) | 2010 | CAN 11bit (500kb) | |
| Toyota Yaris Verso | Gasoline (105 HP) | 2002 | ISO 9141-2 |
| Gasoline (104 HP) | 2003 | ISO 9141-2 | |
| Toyota Yaris xp9 | Gasoline (105 HP) | 2009 | |
| Lexus IS 200 Automat | Gasoline (156 HP) | 2003 | ISO 14230-4 |
| Lexus IS200 | 2, Gasoline (155HP) | 1999 | ISO 9141 |
| Lexus IS300 | 3, Gasoline (210HP) | 2002 | ISO 9141 |
| Lexus Rx400h | 3.3 V6, Hyb (211HP) | 2007 | CAN 11bit (500kb) |
| 2.6, Hyd (270HP) | 2008 | CAN 11bit (500kb) | |
| Lexus Rx450h | V6, Gasoline (295HP) | 2011 | CAN 11bit (500kb) |
Alt text: Toyota OBD2 Compatibility List showing various models, engine types, production years, and supported OBD2 protocols for automotive diagnostics.
OBD-II Protocols Used By Toyota Over the Years:
- Early OBD2 (Pre-2000s): Toyota vehicles, particularly in the late 90s, often utilized J1850 VPW or ISO 9141 protocols.
- 2000-2003: ISO 9141 became a more prevalent protocol during this period.
- 2004-2006: A transition phase where Toyota vehicles supported either ISO 9141 or CAN (Controller Area Network) protocols.
- 2007 and Later: CAN became the dominant protocol, aligning with global OBD2 standards for newer vehicles.
It’s important to note that protocols like ISO 14230-4 (KWP2000) and KWP FAST/SLOW are also mentioned, indicating variations within the ISO 9141 framework or transitional protocols.
Why is Understanding the Toyota OBD2 Pinout Important?
Knowing the Toyota OBD2 connector pinout and protocol compatibility is essential for several reasons:
- Accurate Diagnostics: Ensures you are using the correct pins for communication, leading to reliable diagnostic readings.
- Tool Compatibility: Helps you choose the right OBD2 scanner or diagnostic tool that is compatible with your Toyota’s protocol and pin configuration.
- Troubleshooting: In advanced troubleshooting scenarios, understanding the pinout can be crucial for manual testing of signals and circuits related to the OBD2 system.
- Custom Projects: For enthusiasts and developers, knowing the pinout is necessary for creating custom interfaces or applications that interact with the vehicle’s data.
Using an OBD2 Scanner with Your Toyota
Once you understand the Toyota OBD2 connector pinout and have identified the compatible protocol for your model, using an OBD2 scanner becomes straightforward.
- Locate the OBD2 Port: Typically under the dashboard on the driver’s side.
- Plug in the Scanner: Connect your OBD2 scanner to the port.
- Turn Ignition to “ON”: Turn your car key to the “ON” position without starting the engine (or start the engine if your scanner requires it).
- Follow Scanner Instructions: Navigate the scanner’s menu to initiate a diagnostic scan, read fault codes, or access live data.
By understanding the Toyota OBD2 connector pinout and compatibility, you can effectively utilize OBD2 diagnostics to maintain your vehicle, troubleshoot issues, and ensure optimal performance. This knowledge empowers you to take a more proactive approach to car care and interact with your Toyota’s sophisticated onboard computer system.
