The On-Board Diagnostics II (OBD2) connector is a crucial interface in modern vehicles, allowing technicians and enthusiasts to access a wealth of data for diagnosing and troubleshooting issues. For General Motors (GM) vehicles, understanding the OBD2 connector pinout, especially for models like those from 2017, is essential for accurate diagnostics and repairs. This guide provides a detailed look into the 2017 Gm Obd2 Connector Pinout, its functions, and related information to help you effectively utilize this diagnostic port.
Understanding the GM OBD2 Connector Pinout
The OBD2 standard mandates a 16-pin connector, but the specific functions assigned to each pin can vary based on the manufacturer and the communication protocols used. GM vehicles, including 2017 models, adhere to this standard while utilizing specific pin assignments for their diagnostic systems. It’s important to note that while the physical connector remains consistent, the underlying communication networks and pin functions have evolved over the years in GM vehicles.
For GM cars produced from the mid-1990s up to the early 2000s, the J1850-VPW (Variable Pulse Width Modulation) protocol was commonly employed. As technology advanced, GM transitioned to CAN (Controller Area Network) bus systems. Vehicles manufactured between approximately 2003 and 2006 might use either J1850-VPW or CAN, depending on the specific model and system. By 2007 and onwards, including 2017 GM models, the CAN bus became the predominant communication protocol for OBD2 diagnostics. This shift to CAN bus systems allows for faster communication speeds and more sophisticated diagnostic capabilities.
Below is a detailed pinout for the standard OBD2 connector as typically implemented in 2017 GM vehicles and those within a similar timeframe. Keep in mind that minor variations might exist depending on the exact model and sub-system. Always refer to the specific vehicle’s service manual for the most accurate pinout information.
2017 GM OBD2 Connector Pinout – Detailed Breakdown
| Pin Number | Pin Name | Description
