Fault Code 4201

Fault Code 4201

Speed Sensor, Front Right
Implausible signal from speed sensor

Diagnostic conditions
- Vehicle speed > 40 km/h (25 mph) for min. 40 s.

Possible cause of fault
- Toothed ring/speed sensor soiled or damaged, wheel-bearing play too great
- Pick-up due to faulty shield
- Speed sensor faulty
- Control unit faulty

Affected pins
Pin 15 and pin 16

Diagnosis/troubleshooting

Work Instruction 1 - 3:

Work Instruction 4 - 10: