GM Service Manual Online
For 1990-2009 cars only

Control Module

Repair Instructions

Diagnostic System Check

Schematics

EBCM

Electronic Brake Control Module

Refer to Electronic Brake Control Module Replacement in Antilock Brake System

Refer to Diagnostic System Check - ABS in Antilock Brake System

Refer to Antilock Brake System Schematics in Antilock Brake System

PCM

Powertrain Control Module

Refer to

    •  Powertrain Control Module Replacement in Engine Controls-4.3L
    •  Powertrain Control Module Replacement in Engine Controls-5.0L, 5.7L
    •  Powertrain Control Module Replacement in Engine Controls-6.5L
    •  Powertrain Control Module Replacement in Engine Controls-8.1L

Refer to

    •  Diagnostic System Check - Engine Controls in Engine Controls-4.3L
    •  Diagnostic System Check - Engine Controls in Engine Controls-5.0L, 5.7L
    •  Diagnostic System Check - Engine Controls in Engine Controls-6.5L
    •  Diagnostic System Check - Engine Controls in Engine Controls-8.1L

Refer to

    •  Engine Controls Schematics in Engine Controls-4.3L
    •  Engine Controls Schematics in Engine Controls-5.0L, 5.7L
    •  Engine Controls Schematics in Engine Controls-6.5L
    •  Engine Controls Schematics in Engine Controls-8.1L

SIR

Inflatable Restraint Sensing and Diagnostic 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

VTD

Vehicle Theft Deterrent 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

Radio/Front Control Head

Refer to Radio Replacement in Entertainment

Refer to Diagnostic System Check - Entertainment System in Entertainment

Refer to Radio/Audio System Schematics in Entertainment