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 MANUALSCHEVROLET2002AVALANCHE 2500, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1336 (BODY CONTROL SYSTEM)
2002 Chevrolet Avalanche 2500, RWD
Section 1336 (Body Control System)
2002 Chevrolet Avalanche 2500, RWDSECTION Section 1336 (Body Control System)
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.
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Body Control System
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B1000: Internal Fault Detection
- DTC B1001: Module Is Not Configured Properly
- DTC B1372: Ignition 1 Voltage Circuit Is Open Or Shorted To Ground
- DTC B1382: Accessory Voltage Circuit Is Open Or Shorted To Ground
- Control Module References
- Repair Instructions
- Description and Operation
- Body Control System Description and Operation
- A/C Request
- Anti-Lockout
- Audible Warnings
- BCM Replacement
- BTSI Solenoid
- CAN/Class 2 Communications
- Coolant Level
- Daytime Running Lamps
- Delayed Locking
- Device Power
- Display Dimming
- Dome/Rear Reading Lamps
- Door Locking/Unlocking
- ECU Malfunction
- Electric Rear Defogger
- Front Washer Motor
- Front Wiper Control
- Fuel Level
- Grounding
- Horn
- Instrument Panel Lights/Gauges
- Intermittent Wiper Delay
- Key-In-Ignition
- Keyless Entry Transmitter
- Liftgate Release
- Low Brake Fluid
- Notification Feature
- Odometer
- Oil Life Reset
- Option Configuration
- Park Brake
- Park Lamp Switch
- Power Mode
- Rear Washer Motor
- Rear Wiper Control
- Security System
- Body Control System Description and Operation
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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.