General Motors OBD-II Trouble Codes The OBD-II DTC codes here generally apply to all OBD-II GM vehicles from 1996 and newer: GMC, Chevrolet, Buick, Cadillac, and former brands …

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Free Download: Full GM OBD2 Trouble Codes List and Meaning PDF. This list applies to GM’s cars, including Chevy, Cadillac, Buick, and GMC. Moreover, we divide it into four parts: …

More than just a list of GM Trouble Codes! Our resources can help you fix your check engine light now! Informative articles and access to technician advice, component tests and wiring help!

Please see our generic list of GM OBD2 codes or specific model pages below.

BD2 Module Trouble Code Comprehensive List Gas and Diesel . PC. M. - TCM - BCM - DDM - IPC - EBCM (ABS) - CANBUS Messaging.

Oct 25, 2024 · Now that you’re familiar with the five categories of GM OBD-II codes, you’ll need to know how to navigate the Diagnostic Trouble Code List. This list provides detailed information …

Nov 20, 2025 · Explore the essential GM OBD1 code list, including code interpretation guidelines and diagnostic procedures. Understand DTCs and common models to diagnose issues …

This General Motors Corporation OBD I diagnostic page explains the codes, the most probable cause and what conditions are required to set the code.

GM General Motors OBD2 OBD-II Diagnostic Trouble Codes Listing.