9B
Brake Lights Symptom Diagnosis
Condition Possible Cause Action
Brake lights do not light up
Bulb(s) blown
Check bulb.
“STOP” fuse blown
After checking short circuit, replace fuse.
Stop (brake) lamp switch faulty
Check stop (brake) lamp switch.
Wiring or grounding faulty
Repair circuit.
Brake lights stay on
Stop (brake) lamp switch faulty
Check, adjust or replace switch.
Wiring or grounding faulty
Repair circuit.