Component Tests and General Diagnostics

Checking the high level stop (brake) lamps

Fault-tracing information

Condition
diagnostic trouble codes (DTCs) are stored.
Possible source

- Defective high level stop (brake) lamp.
- Open-circuit.
- Short-circuit to ground in the cable.
- Short-circuit to supply voltage in the cable.

Fault symptom[s]

The stop (brake) lamp does not light when the brake pedal is depressed.

The stop (brake) lamp lights constantly.