GM Service Manual Online
For 1990-2009 cars only

Control Module

Repair Instructions

Diagnostic System Check

Schematic

(EBCM) Electronic Brake Control Module

Refer to Electronic Brake Control Module Replacement in Antilock Brake System

Refer to the appropriate section:

    •  Diagnostic Starting Point in Hydraulic Brakes
    •  Diagnostic System Check in Antilock Brake System

Refer to the appropriate section:

    •  Brake Warning System Schematics in Hydraulic Brakes
    •  Antilock Brake System Schematics in ABS - Domestic
    •  Antilock Brake System Schematics in ABS - Export

Passlockā„¢ Module

Refer to Theft Deterrent Module Replacement in Theft Deterrent

Refer to Diagnostic System Check - Theft Deterrent in Theft Deterrent

Refer to Theft Deterrent System Schematics in Theft Deterrent

(PCM) Powertrain Control Module

Refer to Powertrain Control Module Replacement/Programming in Engine Controls - 6.5L

Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 6.5L

Refer to Engine Controls Schematics in Engine Controls - 6.5L

(SIR) Inflatable Restraint Module

Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement in SIR

Refer to Diagnostic System Check - SIR in SIR

Refer to SIR Schematics in SIR

(VCM) Vehicle Control Module

Refer to the appropriate section:

    •  VCM Replacement/Programming in Engine Controls - 4.3L
    •  VCM Replacement/Programming in Engine Controls - 5.0,5.7L
    •  VCM Replacement/Programming in Engine Controls - 7.4L

Refer to the appropriate section:

    •  Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.3L
    •  Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 5.0,5.7L
    •  Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 7.4L

Refer to the appropriate section:

    •  Engine Controls Schematics in Engine Controls - 4.3L
    •  Engine Controls Schematics in Engine Controls - 5.0,5.7L
    •  Engine Controls Schematics in Engine Controls - 7.4L

(VIM) Vehicle Immobilizer Module (Export Only)

Refer to Theft Deterrent Module Replacement in Theft Deterrent

Refer to Diagnostic Trouble Code (DTC) List/Type in Theft Deterrent

Refer to Theft Deterrent System Schematics in Theft Deterrent