PSM 5.3 and 5.7
Fault code 4210Speed sensor lead, rear right
Diagnostic conditions
- Ignition on
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 11 and pin 12
PSM 5.7: Pin 30 and pin 31
Diagnosis/troubleshooting PSM 5.3
Diagnosis/troubleshooting PSM 5.7
