C1225
Lamp Brake Warning Output Circuit Short To Battery
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)
Symptoms
- Brake warning light stays on
- Brake light does not turn on
- False brake alarms
Causes
- Damage to the wiring in the lamp circuit
- Short circuit to positive wire
- Brake lamp relay malfunction
- Problems with the control unit
How to Fix
- Check the integrity of the wiring in the brake lamp circuit
- Check relays and fuses associated with the circuit
- Diagnose the control unit for errors
- Replace damaged components if necessary