J2000/Sunbird V6-191 3.1L VIN T MFI (1994)
Brake Warning Indicator: Symptom Related Diagnostic Procedures
Symptom Table
Diagnostic Tests
1. Put Ignition Switch in RUN. Disconnect the Park Brake Switch and Brake Fluid Level Switch and observe BRAKE Indicator.
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If BRAKE Indicator goes out when a switch is disconnected, replace suspect switch.
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If BRAKE Indicator stays ON and vehicle is equipped with Daytime Running Lights (DRL), go to step 2. If vehicle is not equipped with
Daytime Running Lights, go to step 3.
2. Disconnect Daytime Running Lights (DRL) Module and observe BRAKE Indicator with the ignition in RUN.
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If BRAKE Indicator goes out when module is disconnected, replace the module.
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If BRAKE Indicator stays ON, go to step 3.
3. Disconnect the Electronic Brake Control Module (ECBM) connector C2.
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If BRAKE Indicator goes out, refer to Brakes and Traction Control. See:
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If BRAKE Indicator stays ON, go to step 4.
4. With the Ignition Switch in RUN and connector disconnected, check for continuity between the Ignition Switch half of terminal D/C1 and ground.
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If there is continuity, replace the Ignition Switch.
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If there is no continuity, check for a short to ground in the 33 (TAN/WHT) wire.