Clearing Diagnostic Trouble Codes

Diagnosis/Troubleshooting

NOTE: The fault memory Info key (F8) on Porsche System Tester II No. 9588 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
- Above upper limit
- Below lower limit
- 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 rear convenience system control unit plug connection are neither damaged nor corroded, The wiring and plugs of the affected components must also be checked for external damage and proper contact, Repair damaged or corroded pins if possible, otherwise replace affected pins, Repair or replace damaged wires.
- Battery voltage and signals: A battery voltage of between 11.4 and 14,5 V is required for troubleshooting, This must be checked and provided if necessary, Both signals and voltages as well as components or fuses (input side) must be guaranteed on the vehicle electrical system.
- Specified resistance values are based on an ambient temperature of 20° C.