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 MANUALSCHEVROLET2002CAVALIER BASE, 4D SEDAN, 2.2 4, LN2, STANDARDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL MODULESSELF-DIAGNOSTIC SYSTEMBRAKE SYSTEM DIAGNOSTIC SYSTEM CHECK
2002 Chevrolet Cavalier Base, 4D Sedan, 2.2 4, LN2, Standard
Brake System Diagnostic System Check
2002 Chevrolet Cavalier Base, 4D Sedan, 2.2 4, LN2, StandardSECTION Brake System Diagnostic System Check
- Connect scan tool to Data Link Connector (DLC). DLC is located on lower left side of instrument panel, near steering column. If scan tool powers up, go to next step. If scan tool does not power up, go to TEST A: SCAN TOOL DOES NOT POWER UP under SYSTEM TESTS.
- Turn ignition switch to RUN position. Attempt to establish communication with Body Control Module (BCM), Electronic Brake Control Module (EBCM) and Instrument Panel Cluster (IPC). If scan tool communicates with BCM, EBCM and IPC, go to next step. If scan tool does not communicate with BCM, EBCM and IPC, go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SYSTEM TESTS.
- Select DISPLAY DTCs function on scan tool for BCM, EBCM and IPC. If any DTCs are retrieved, go to next step. If no DTCs are retrieved, repair brake warning indicator circuit.
- If communication DTCs (DTCs beginning with a "U") are not retrieved, go to next step. If any DTCs beginning with "U" are retrieved, go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SYSTEM TESTS.
- If DTC B1000 or B1001 are not retrieved, go to next step. If DTC B1000 or B1001 are retrieved, go to DTC B1000: BODY CONTROL MODULE MALFUNCTION and/or DTC B1001: OPTION CONFIGURATION ERROR under DIAGNOSTIC TESTS.
- If DTC B1328 is retrieved:
- On 2001 models, see GENERATORS & REGULATORS article in ELECTRICAL.
- On 2002 models, see GENERATORS & REGULATORS article in ELECTRICAL.
If DTC B1328 is not retrieved, perform appropriate test in accordance with DTC retrieved. See appropriate ANTI-LOCK article in BRAKES.
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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.