Wheel Speed Monitoring
The fault is stored if the average speed of one wheel differs by at least 5 % from the speed of the other wheels for longer than 20 s or if one or more
wheels are controlled for longer than 60 s.
Diagnostic conditions
- Vehicle speed > 20 km/h (for at least 80 s)
Possible cause of fault
- Incorrect tyre pressure or wheel size (collapsible wheel, spare wheel)
- Play in wheel bearing is too large
- Toothed ring/pulse ring is soiled or damaged
- Incorrect or faulty speed sensor
- PSM control unit faulty
Diagnosis/troubleshooting
Work Instruction 1 - 5
NOTE: If other faults in the PSM are indicated, then remedy these first.
Fault Code 5504
Fault Code 5504
Extraordinary Operating Condition
The fault is stored in the event of continual control operations, that is under extreme driving situations, e.g. snow-covered circular paths, icy roads,
constant braking etc.
Diagnostic conditions
- Test drive with no extreme driving situations
Possible cause of fault
- Vehicle was in an extraordinary operating condition
Diagnosis/troubleshooting
NOTE: Erase fault memory and perform test drive with no extreme driving situations.
Fault Code 5505
Fault Code 5505
Electrical System (Steering-Angle Sensor)
The fault is stored in the event of a fault in the electrical system of the steering angle sensor or a voltage drop.
Steering angle sensor up until MY 2002 with 4-pole plug