Control Module  | Repair Instructions  | Diagnostic System Check  | Schematic  | 
|---|---|---|---|
Body Control Module (BCM)  | Refer to Body Control Module Replacement  | Refer to Body Control System Schematics  | |
Driver Information Display Module  | --  | Refer to Driver Information System Schematics  | |
Driver Seat Adjuster Memory Module  | Refer to Memory Seats Schematics  | ||
Electronic Brake Control Module (EBCM 310)  | Refer to Diagnostic System Check  | Refer to Antilock Brake System Schematics  | |
Electronic Brake Control Module (EBCM 325)  | Refer to Diagnostic System Check  | Refer to Antilock Brake System Schematics  | |
Electronic Climate Control (ECC) Module  | Refer to Control Assembly Replacement  | Refer to Diagnostic System Check  | Refer to HVAC Blower Control Schematics  | 
Inflatable Restraint Sensing and Diagnostic Module (SDM)  | Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement  | Refer to Diagnostic System Check - SIR  | Refer to SIR Schematics  | 
Instument Cluster  | Refer to Instrument Cluster Replacement  | ||
Powertrain Control Module (PCM) (2.2L)  | Refer to Engine Controls Schematics  | ||
Vehicle Control Module (VCM) (4.3L)  | Refer to VCM Replacement/Programming  | Refer to Engine Controls Schematics  | |
Transfer Case Shift Control Module (NP1)  | --  | Refer to Transfer Case Control Schematics  | |
Transfer Case Shift Control Module (NP4)  | Refer to Diagnostic System Check  | Refer to Transfer Case Control Schematics  | |
Transfer Case Shift Control Module (NP8)  | Refer to Diagnostic System Check  | Refer to Transfer Case Control Schematics  | |
Vehicle Interface Unit (VIU)  | --  | --  | Refer to OnStar Schematics  |