Fault Code 4802

Fault Code 4802

Undervoltage
Internal control unit function test

NOTE: Once the vehicle voltage is within the permissible voltage range again, the PSM system is switched back on and the indicator lights go out.

Diagnostic conditions
- Vehicle speed is greater than 6 km/h

Possible cause of fault
- Vehicle voltage less than 9.4 V or greater than 17.4 V (control unit voltage supply, rate-of-turn sensor and steering angle sensor)
- Faulty connection to PSM control unit
- PSM control unit faulty

Affected pins
Pin 1, pin 5, pin 2, pin 6 and pin 23

Diagnosis/troubleshooting

Work Instruction 1 - 5:

NOTE: Erase the fault memory before troubleshooting and perform a test drive.