Work Instruction 5 - 10
Fault Code 4201
Fault Code 4201
Speed-Sensor, Front Right
Implausible signal from speed sensor
Diagnostic conditions
- Vehicle speed > 40 km/h for at least 40 s
Possible cause of fault
- Toothed ring/speed sensor soiled or damaged, wheel-bearing play too large
- Interference due to faulty screening
- Speed sensor faulty
- Control unit faulty
Affected pins
Pin 15 and pin 16
Diagnosis/troubleshooting