Diagnostic Notes

DESCRIPTION
If the red BRAKE warning light does not turn on when the key is in the START position, service the brake warning bulb system as required. The most likely cause of a non-functioning red BRAKE warning light is a burned-out bulb or an open fuse.


POSSIBLE CONTRIBUTING BASE BRAKE COMPONENT/VEHICLE WIRING CONCERNS
- Open brake warning light bulb (RED)
- Open power fuse
- Open Circuit 640 (R/Y), 977 (P/W), 512 (T/LG), 531 (DG/Y), 162 (LG/R)
- Open resistor/diode circuit
- Unseated master cylinder fluid level switch connector
- Defective ignition bulb prove out switch