GM Service Manual Online
For 1990-2009 cars only

Control Module

Repair/Reprogramming Instructions

Diagnostic System Check

Schematics

Audio Amplifier

Radio Speaker Amplifier Replacement in Entertainment

Diagnostic System Check - Entertainment System in Entertainment

Radio/Audio System Schematics in Entertainment

Body Control Module

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Body Control System Schematics

Digital Radio Receiver

Digital Radio Receiver Replacement in Entertainment

Diagnostic System Check - Entertainment System in Entertainment

Radio/Audio System Schematics in Entertainment

Driver Door Module

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

Diagnostic System Check - Door Systems in Doors

Door Control Module Schematics in Doors

Driver Seat Module

Memory Seat Control Module Replacement in Seats

Diagnostic System Check - Power Seat Systems in Seats

Driver Seat Schematics in Seats

DVD Player

Video Display Replacement in Entertainment

Diagnostic System Check - Entertainment System in Entertainment

Video System Schematics in Entertainment

Electronic Brake Control Module

Electronic Brake Control Module Replacement in Antilock Brake System

Diagnostic System Check - ABS in Antilock Brake System

Antilock Brake System Schematics in Antilock Brake System

End Gate Module

Rear Body Control Module Replacement - Endgate in Body Rear End

Diagnostic System Check - Body Rear End in Body Rear End

Body Rear End Schematics in Body Rear End

Front Passenger Door Module

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

Diagnostic System Check - Door Systems in Doors

Door Control Module Schematics in Doors

HVAC Control Module

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

HVAC Control Module - Auxiliary

    •  Diagnostic System Check - HVAC Systems - Automatic in HVAC - Automatic
    •  HVAC Schematics in HVAC - Manual
    •  HVAC Schematics in HVAC - Automatic

Inflatable Restraint Sensing and Diagnostic Module

Inflatable Restraint Sensing and Diagnostic Module Replacement in SIR

Diagnostic System Check - SIR in SIR

SIR Schematics in SIR

Instrument Panel Cluster

Instrument Cluster Replacement in Instrument Panel, Gages and Console

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

Instrument Cluster Schematics in Instrument Panel, Gages and Console

Liftgate Module

    •  Liftgate Control Module Replacement in Body Rear End
    •  Rear Body Control Module Programming in Body Rear End

Diagnostic System Check - Body Rear End in Body Rear End

Body Rear End Schematics in Body Rear End

Power Roof Module

Moveable Roof Panel Control Module Replacement in Roof

Diagnostic System Check - Power Roof in Roof

Sunroof Schematics in Roof

Powertrain Control Module

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

Radio

Radio Replacement in Entertainment

Diagnostic System Check - Entertainment System in Entertainment

Radio/Audio System Schematics in Entertainment

Theft Deterrent Control Module

    •  Theft Deterrent Module Replacement in Theft Deterrent - Immobilizer
    •  Programming Theft Deterrent System Components in Theft Deterrent - Immobilizer

Diagnostic System Check - Theft Deterrent in Theft Deterrent - Immobilizer

Theft Deterrent System Schematics in Theft Deterrent - Immobilizer

Transfer Case Shift Control Module

    •  Transfer Case Shift Control Module Replacement in Transfer Case - NVG 126-NP4
    •  Transfer Case Shift Control Module Replacement in Transfer Case - NVG 226-NP8
    •  Transfer Case Shift Control Module Reprogramming in Transfer Case - NVG 126-NP4
    •  Transfer Case Shift Control Module Reprogramming in Transfer Case - NVG 226-NP8
    •  Diagnostic System Check - Transfer Case in Transfer Case - NVG 126-NP4
    •  Diagnostic System Check - Transfer Case in Transfer Case - NVG 226-NP8
    •  Transfer Case Control Schematics in Transfer Case - NVG 126-NP4
    •  Transfer Case Control Schematics in Transfer Case - NVG 226-NP8

Vehicle Communication Interface Module

Communication Interface Module Replacement in Cellular Communications

Diagnostic System Check - Cellular Communication in Cellular Communications

OnStar Schematics in Cellular Communications