Reading 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 in formation 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

1. Erase fault memory
2. Satisfy the requirements listed under 'Diagnosis conditions'.
3. Read out fault memory again