GM Service Manual Online
For 1990-2009 cars only

The following abbreviations are frequently used in this section:

    • ABS: Antilock Brake System
    • BCM: Body Control Module
    • CKT: Circuit
    • DLC: Data Link Connector
    • DTC: Diagnostic Trouble Codes
    • DMM: Digital Multimeter
    • EBCM: Electronic Brake Control Module
    • ESB: Expansion Spring Brake
    • IGN: Battery Voltage with Ignition to RUN position
    • PCM: Powertrain Control Module