GM Service Manual Online
For 1990-2009 cars only

Control Module

Repair/Reprogramming Instructions

Diagnostic System Check

Schematics

Audio Amplifier

Refer to Radio Speaker Amplifier Replacement in Entertainment

Refer to Diagnostic System Check - Entertainment System in Entertainment

Refer to Radio/Audio System Schematics in Entertainment

Body Control Module

    • Refer to Body Control Module Replacement

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Refer to Body Control System Schematics

Driver Door Module

Refer to Door Lock and Side Window Switch Replacement - Driver Side in Doors

Refer to Diagnostic System Check - Door Systems in Doors

Refer to Door Control Module Schematics in Doors

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

Front Passenger Door Module

Refer to Door Lock and Side Window Switch Replacement - Passenger Side in Doors

Refer to Diagnostic System Check - Door Systems in Doors

Refer to Door Control Module Schematics in Doors

HVAC Control Module

    • Refer to HVAC Control Module Replacement in HVAC - Manual
    • Refer to HVAC Control Module Replacement in HVAC - Automatic
    • Refer to Diagnostic System Check - HVAC Systems - Manual in HVAC - Manual
    • Refer to Diagnostic System Check - HVAC Systems - Automatic in HVAC - Automatic
    • Refer to HVAC Schematics in HVAC - Manual
    • Refer to HVAC Schematics in HVAC - Automatic

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

Instrument Panel Cluster

Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console

Refer to Diagnostic System Check - Instrument Cluster in Instrument Panel, Gages, and Console

Refer to Instrument Cluster Schematics in Instrument Panel, Gages, and Console

Liftgate Module

Refer to Liftgate Control Module Replacement in Body Rear End

Refer to Diagnostic System Check - Body Rear End in Body Rear End

Refer to Body Rear End Schematics in Body Rear End

Memory Seat Module - Driver and Passenger

Refer to Memory Seat Control Module Replacement in Seats

Refer to Diagnostic System Check - Power Seat Systems in Seats

Refer to Memory Seats Schematics in Seats

Powertrain Control Module

Refer to:

    •  Powertrain Control Module Replacement in Engine Controls -- 4.2
    •  Powertrain Control Module Replacement in Engine Controls 4.8L, 5.3L, and 6.0L
    • Refer to Service Programming System (SPS) in Programming
    •  Diagnostic System Check - Engine Controls in Engine Controls -- 4.2
    •  Diagnostic System Check - Engine Controls in Engine Controls 4.8L, 5.3L, and 6.0L
    •  Engine Controls Schematics in Engine Controls -- 4.2
    •  Engine Controls Schematics in Engine Controls 4.8L, 5.3L, and 6.0L

Radio

Refer to Radio Replacement in Entertainment

Refer to Diagnostic System Check - Entertainment System in Entertainment

Refer to Radio/Audio System Schematics in Entertainment

Rear Climate Control

         in HVAC Manual
         in HVAC Manual
    • Refer to HVAC Schematics in HVAC - Manual
    • Refer to HVAC Schematics in HVAC - Automatic

Transfer Case Shift Control Module

    • Refer to Transfer Case Shift Control Module Replacement in Transfer Case - NVG 226 - NP8
    • Refer to Transfer Case Shift Control Module Reprogramming in Transfer Case - NVG 226 - NP8

Refer to Diagnostic System Check - Transfer Case in Transfer Case - NVG 226 - NP8

Refer to Transfer Case Control Schematics in Transfer Case - NVG 226 - NP8

Vehicle Communication Interface Module

Refer to Communication Interface Module Replacement in Cellular Communications

Refer to Diagnostic System Check - Cellular Communication in Cellular Communications

Refer to OnStar Schematics in Cellular Communications