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 MANUALSCHEVROLET2000CAB & CHASSIS C2500, 6.5 F, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 54 (BODY CONTROL MODULES)
2000 Chevrolet Cab & Chassis C2500, 6.5 F, Automatic
Section 54 (Body Control Modules)
2000 Chevrolet Cab & Chassis C2500, 6.5 F, AutomaticSECTION Section 54 (Body Control Modules)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 GMC Savana, 2002 Chevrolet Chevy Express, 2001 GMC Savana Special, 2001 GMC Savana Camper Special, and 2001 GMC Savana. However, it is still accessible from the selected car via links, so may be relevant.
- Description & Operation
- Control Module References
- Component Locations
- Programming
- Troubleshooting
- INTERMITTENTS
- Self-Diagnostic System
- Notes
- Anti-Lock Brake System Diagnostic System Check
- Automatic Transmission Diagnostic System Check
- Cruise Control System Diagnostic System Check
- Engine Controls Diagnostic System Check
- Engine Cooling System Diagnostic Check
- Engine Electrical System Diagnostic System Check
- Inspection/Maintenance Diagnostic System Check
- Entertainment System Diagnostic System Check
- Instrument Panel Cluster Diagnostic System Check
- Sir Diagnostic System Check
- Theft Deterrent System Diagnostic System Check
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- DTC B0688: Security Indicator Circuit Fault
- DTC B1000: Body Control Module Internal Fault
- DTC B1004: Keep Alive Memory Data Lost
- DTC B1007: Checksum Value Error
- DTC B1009: EEPROM Checksum Error
- DTC U1000 Or U1255: Class 2 Communication Malfunction
- DTC U1001-U1254: Loss Of XXX Communication
- DTC U1300: Class 2 Data Link Low
- DTC U1301: Class 2 Data Link High
- System Tests
- Removal & Installation
- Electronic Brake Control Module & Brake Pressure Modulator Valve
- Heating, Ventilation & Air Conditioning (HVAC) Control Module
- Inflatable Restraint Sensing & Diagnostic Module (SDM)
- Instrument Panel Cluster
- PASSLOCK(tm) MODULE (THEFT DETERRENT CONTROL MODULE)
- Powertrain Control Module/Vehicle Control Module
- Wiring Diagrams
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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.