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 MANUALSCHEVROLET2000CAVALIER BASE, 4D SEDAN, 2.4 TREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 21 (BODY CONTROL MODULES)
2000 Chevrolet Cavalier Base, 4D Sedan, 2.4 T
Section 21 (Body Control Modules)
2000 Chevrolet Cavalier Base, 4D Sedan, 2.4 TSECTION Section 21 (Body Control Modules)
WARNING: This page is about a different car, the 2002 Pontiac Sunfire, 2002 Chevrolet Cavalier, 2001 Pontiac Sunfire, and 2001 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
- Description
- Operation
- Component Locations
- Programming
- Trouble Shooting
- Self-Diagnostic System
- Notes
- Body Control System Diagnostic System Check
- Air Bag Diagnostic System Check
- Air Conditioning System Diagnostic System Check
- Audible Warning System Diagnostic System Check
- Automatic Transmission System Diagnostic System Check
- Automatic Transmission Shift Interlock System Diagnostic System Check
- Body Rear End Diagnostic System Check
- Brake System Diagnostic System Check
- Cruise Control System Diagnostic System Check
- Door System Diagnostic System Check
- Electronic Brake Control Module Diagnostic System Check
- Engine Cooling System Diagnostic System Check
- Engine Electrical Diagnostic System Check
- Horn Diagnostic System Check
- Instrument Panel Cluster Diagnostic System Check
- Lighting Systems Diagnostic System Check
- Manual Transmission Diagnostic System
- Powertrain Control Module Systems Diagnostic System Check (2.2L - Bi-Fuel)
- Powertrain Control Module Systems Diagnostic System Check (2.2L - Gasoline)
- Powertrain Control Module Systems Diagnostic System Check (2.4L - Gasoline)
- Radio/Audio System Diagnostic System Test
- Remote Keyless Entry Diagnostic System Check
- Vehicle Theft Deterrent Diagnostic System Test
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC B1000: Body Control Module Malfunction
- DTC B1001: Option Configuration Error
- DTC B1372: Ignition 1 Circuit Low
- DTC B1382: Ignition Acc Circuit Low
- DTC B2965: Key In Ignition Fault
- DTC U1000 & U1255: Class 2 Communication Malfunction
- DTC U1001-U1254: Loss Of Communications With XXX
- DTC U1300: Class 2 Data Link Low
- DTC U1301: Class 2 Data Link High
- Control Module References
- System Tests
- Removal & Installation
- 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.