Fault Code 4340

Fault Code 4340

Stop light switch

Diagnostic conditions
- Ignition on

Possible cause of fault
- Short circuit to ground/B+ or open circuit
- Wiring/plug connection faulty
- Mechanism of the stop light switch not OK
- Adjustment of the stop light switch not OK
- Pressure sensor plausibility

Affected terminals
PSM 5.7 terminals 32, 37
PSM 5.3 terminals 42, 48

Diagnosis/troubleshooting PSM 5.7







Diagnosis/troubleshooting PSM 5.3