Initial Inspection and Diagnostic Overview

General Information

Observe the following points:
- If it is replaced, the roll-over protection control module must be locked before the first journey.
- In order to test the roll-over protection system and keep it operational, the roll-over bars must be activated at regular intervals (see maintenance instructions).
- After troubleshooting or repairs, erase the fault memory with the Porsche System Tester II 9588 and carry out a test drive.
- After the test drive, read out the fault memory with the Porsche System Tester II 9588 again.

General information on the fault memory
- The contents of the fault memory are retained even when the unit is removed.
- Faults in the control module can only be erased after an "ignition off - on" reset.

Diagnostic conditions
The fault can only be identified if the requirements listed under Diagnostic conditions are met. For this reason, the specified procedure must be observed after a fault is repaired:
1. Erase fault memory.
2. Satisfy the requirements listed under Diagnostic conditions.
3. Read out fault memory again.

Possible causes of fault
The possible causes that may be responsible for the fault are listed here. Please note that in certain circumstances further faults can be stored in the fault memory after troubleshooting (e.g. if plugs are disconnected). After carrying out repairs, read out the fault memory of all control modules and erase any faults.

Diagnosis/troubleshooting
- The errors stored are displayed in plain text using the Porsche fault code.
- The fault memory Info key F8 on the Porsche System Tester II 9588 can be used to access the extended fault memory. This information should be saved using the F4 key and printed out. The following information can be displayed:

Fault type
The following fault types are possible:
- ---- (No details available)
- Leak resistance/short circuit to ground
- Below limit value
- Above limit value

Occurrence of faults
The fault occurred as follows:
- Statically (i.e. once)
- Sporadically (i.e. more than once)

Fault status
The following status types are possible:
- Present (at the time of the last diagnostics routine)
- Not present (at the time of the last diagnostics routine)