Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 502 (BODY CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESCONTROL MODULE REFERENCES
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8
Control Module References
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Control Module References
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Control Module References
| Control Module | Repair Instructions | Diagnostic System Check | Schematic |
|---|---|---|---|
| BCM | Refer to Body Control Module Replacement | - | Refer to Body Control System Schematics |
| DRR | Refer to DVD Player Replacement in Entertainment | Refer to Diagnostic System Check - Entertainment System in Entertainment | Refer to Radio/Audio System Schematics in Entertainment |
| EBCM | Refer to Electronic Brake Control Module Replacement in Antilock Brake System | Refer to Diagnostic System Check - ABS in Antilock Brake System | Refer to ABS Schematics in Antilock Brake System |
| HVAC | Refer to HVAC Control Module Replacement in HVAC Systems - Automatic | Refer to Diagnostic System Check - HVAC Systems - Automatic in HVAC Systems - Automatic | Refer to HVAC Schematics in HVAC Systems - Automatic |
| HUD | Refer to Head Up Display Replacement in Instrument Panel, Gages, and Console | Refer to Diagnostic System Check - Head Up Display in Instrument Panel, Gages, and Console | Refer to Head Up Display Schematics in Instrument Panel, Gages, and Console |
| IPC | Refer to Instrument Panel Cluster (IPC) 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 |
| MSM | Refer to Memory Seat Control Module Replacement in Seats | Refer to Diagnostic System Check - Power Seat Systems in Seats | Refer to Driver Seat Schematics in Seats |
| PASS-Key® Module | Refer to Theft Deterrent Control 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 | Refer to Powertrain Control Module (PCM) Replacement in Engine Controls | Refer to Diagnostic System Check - Engine Controls in Engine Controls | Refer to Engine Controls Schematics in Engine Controls |
| Radio | Refer to Radio Replacement in Entertainment | Refer to Diagnostic System Check - Entertainment System in Entertainment | Refer to Radio/Audio System Schematics in Entertainment |
| RSE, DVD | Refer to DVD Player Replacement in Entertainment | Refer to Diagnostic System Check - Entertainment System in Entertainment | Refer to Video System Schematics in Entertainment |
| SDM | 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 |
| VCIM | Refer to Communication Interface Module Replacement in Cellular Communication | Refer to Diagnostic System Check - Cellular Communication in Cellular Communication | Refer to OnStar Schematics in Cellular Communication |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.