PSM 5.3 and 5.7
Fault code 4215Speed sensor lead, rear left
Diagnostic conditions
- Ignition on
- Vehicle speed > 40 km/h (25 mph) for min. 20 s.
Possible cause of fault
- Short circuit to B+ / ground or open circuit between control unit and speed sensor
- Speed sensor faulty
- Control unit faulty
Affected pins
PSM 5.3: Pin 13 and pin 14
PSM 5.7: Pin 14 and pin 29
Diagnosis/troubleshooting PSM 5.3
Diagnosis/troubleshooting PSM 5.7