Antitheft and Alarm Systems: Testing and Inspection

General Information On The Fault Memory

Fault code setting conditions
Fault codes can be set in several circumstances, e.g.
- battery disconnected
- plug connections disconnected
- power failure
- etc.

In these circumstances, no fault is present in the system and the fault memory must be erased.

Fault memory Info key F8
In order to be able to assess the fault exactly, the fault memory Info key F8 must be pressed. This information should be saved using the Save key F4 and printed out. If a fault code is stored with "not present" status and no other problems are present, then the fault memory must be erased.

Open circuit - short to ground / short to B+ / version; vehicle parameters / counter
Open circuit or short to ground: There is (present) or was (not present) a short circuit to ground or an open circuit in the circuit to the control module terminal.

Short to B+: There is (present) or was (not present) a short circuit to voltage.