The OBD2 (On-Board Diagnostics) port, also known as the Data Link Connector (DLC), is a crucial component for diagnosing vehicle issues in your Chrysler. Understanding the Chrysler Obd2 Dlc Connector Pinout is essential for effectively using diagnostic tools. This guide provides a detailed breakdown of the pin assignments and their corresponding functions.
Understanding the OBD2 Standard for Chrysler Vehicles
Chrysler, like most vehicle manufacturers in the US, adopted the OBD2 standard in 1996 for all its gasoline-fueled vehicles and in 1997 for diesel models. The OBD2 system monitors various vehicle components and reports any malfunctions via Diagnostic Trouble Codes (DTCs). Accessing these DTCs requires a scan tool connected to the OBD2 DLC.
Locating the Chrysler OBD2 DLC Connector
The OBD2 DLC in most Chrysler vehicles is typically located under the dashboard on the driver’s side, often near the steering column or the center console. It’s a trapezoidal, 16-pin female connector.
Chrysler OBD2 DLC Pinout Diagram and Descriptions
While the standard OBD2 connector has a universal pinout, some manufacturers, including Chrysler, utilize specific pins for proprietary communication protocols. Here’s a breakdown of the standard pin functions:
| Pin Number | Description |
|---|---|
| 1 | Manufacturer Discretionary (Often used for Chrysler-specific data) |
| 2 | SAE J1850 Bus + (Chrysler may use this for specific communication) |
| 3 | Manufacturer Discretionary (Often used for Chrysler-specific data) |
| 4 | Chassis Ground |
| 5 | Signal Ground |
| 6 | CAN High (ISO 15765-4 and SAE J2284) |
| 7 | ISO 9141-2 / ISO 14230-4 K Line |
| 8 | Manufacturer Discretionary (Often used for Chrysler-specific data) |
| 9 | Manufacturer Discretionary (Often used for Chrysler-specific data) |
| 10 | SAE J1850 Bus – (Chrysler may use this for specific communication) |
| 11 | Manufacturer Discretionary (Often used for Chrysler-specific data) |
| 12 | Manufacturer Discretionary (Often used for Chrysler-specific data) |
| 13 | Manufacturer Discretionary (Often used for Chrysler-specific data) |
| 14 | CAN Low (ISO 15765-4 and SAE J2284) |
| 15 | ISO 9141-2 / ISO 14230-4 L Line (Optional) |
| 16 | Battery Power (12V) |
Utilizing the Pinout Information for Diagnostics
Knowing the specific functions of each pin allows you to:
- Use the correct diagnostic tools: Different scan tools utilize different communication protocols. Understanding the pinout ensures compatibility.
- Troubleshoot communication issues: If you encounter problems connecting a scan tool, checking the relevant pins for voltage and ground integrity can help identify the source of the problem.
- Perform advanced diagnostics: Some advanced diagnostic procedures may require accessing specific pins directly.
Conclusion
The Chrysler OBD2 DLC connector pinout provides crucial information for diagnosing and troubleshooting your vehicle. While adhering to the OBD2 standard, Chrysler utilizes certain pins for proprietary functions. Understanding this pinout allows for effective use of diagnostic tools and empowers you to maintain your vehicle’s health. Remember always to consult your vehicle’s specific repair manual for the most accurate and up-to-date information.
