Fault Code 4210

Fault Code 4210

Speed 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

Part 1:

Part 2:

Diagnosis/troubleshooting PSM 5.7

Part 1:

Part 2: