Clearing Diagnostic Trouble Codes

Diagnosis/Troubleshooting

NOTE: The fault memory Info key F8 on 9588 Porsche System Tester II can be used to access the 'extended fault memory' The following information can be displayed:

Fault type
The following fault types are possible:
- no display
- upper limit value exceeded
- lower limit value not reached
- mechanical fault
- no signal/communication
- no or incorrect basic setting/adaptation
- Short circuit to B+
- Short circuit to ground
- implausible signal
- open circuit/short circuit to ground
- open circuit/short circuit to B+
- Open circuit
- electrical fault in electric circuit
- please read out fault memory
- faulty
- cannot be checked now

Fault status

The following status types are possible:
- present
- not present

This information should be saved using the Save key F4 and printed out.

NOTE:
- Visual inspection: During troubleshooting, please check first that the affected pins on the steering column switch are neither damaged nor corroded The wiring and plugs of the affected components must also be checked for external damage and correct contacts Repair damaged or corroded pins if possible, otherwise replace affected pins Repair or replace damaged wires
- Battery voltage: A battery voltage of between 114 and 14.5 V is required for troubleshooting This must be checked and provided if necessary Voltages as well as components or fuses (input side) must be guaranteed on the vehicle electrical system