General information on the fault memory 2. Version / vehicle parameters · Fault code setting conditions

911 Carrera (996) HBA diagnosis General information on the fault memory 2. Version / vehicle parameters Fault code setting conditions Incorrect vehicle coding or coding not carried out. Faultcodes can be set in several circumstances, 3. Counter e.g. When a fault first occurs, a fault entry is made in the fault memory and the counter is -Power failure simultaneouslyset to 50. If a fault is present, the counter is incrementedby 1 each time the -Plug connections disconnected ignition is switchedon. The maximum count is 100. The counter is decremented if the fault is In these circumstances, no fault is present in no longer present. The fault memory is erasedthe system and the fault memory must be automaticallywhen the counter reachesO.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. 1. Open circuit/short to ground/short to B+: Short to ground / open circuit: 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. 94 92 Diagnosis/troubleshooting HBA 94 -D 5