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 808 (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 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Control Module References
| Control Module | Repair | Diagnostic System Check | Schematic |
|---|---|---|---|
| Body Control Module (BCM) | Refer to Body Control Module Replacement | Refer to Diagnostic Starting Point - Body Control System | Refer to Body Control System Schematics |
| Electronic Brake/Traction Control Module (EBTCM) | 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 |
| Engine Control Module (ECM) (L61) | Refer to ENGINE CONTROL MODULE | Refer to DIAGNOSTIC SYSTEM CHECK -- ENGINE CONTROLS | |
| Engine Control Module (ECM) (L81) | Refer to ENGINE CONTROL MODULE | Refer to DIAGNOSTIC SYSTEM CHECK -- ENGINE CONTROLS | |
| Inflatable Restraint Sensing and Diagnostic Module (SDM) | Refer to SENSING & DIAGNOSTIC MODULE (SDM) | Refer to SIR DIAGNOSTIC SYSTEM CHECK | |
| Instrument Panel Cluster (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 |
| Power Steering Control Module (PSCM) | Refer to Steering Column Replacement in Steering Wheel and Column | Refer to Diagnostic System Check - Power Steering System in Power Steering System | Refer to Power Steering System Schematics in Power Steering System |
| Transmission Control Module (TCM) (AF33-5) | Refer to Transmission Control Module (TCM) Replacement in Automatic Transaxle AF33-5 | Refer to Diagnostic System Check - Automatic Transmission in Automatic Transaxle AF33-5 | Refer to Automatic Transmission Controls Schematics in Automatic Transaxle AF33-5 |
| Transmission Control Module (TCM) (VT25-E) | |||
| Vehicle Communication Interface Module (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.