1.2 General information on fault memory · The fault memory of the control module can Open circuit or short to B+:

1.2 General information on fault memory The fault memory of the control module can Open circuit or short to B+: save up to three different faults simultaneously. There is (present) or was (not present) a If all three fault memories are occupied,the new short-circuit to voltage or an open circuit in the fault overwrites the oldest fault. It is possible to circuit to the control module terminal. reset faults in the control module only after an "ignition off -on" procedure. The fault memory Short to ground: of the PSM control module is maintainedeven in There is (present) or was (not present) a removed state. short-circuit to ground in the circuit to the control module terminal. F8 key In order to be able to assess the fault exactly, Short to B+: the F8 key must be pressed. This information There is (present) or was (not present) a should be saved using the Save key F4 and short-circuit to voltage in the circuit to the printed out. If a fault code is stored with "not control module terminal. present' status and no other problems are 2. Light onpresent, then the fault memory must be erased. PSM light switched on 1. / Signal implausible / no signal change / open circuit or short to ground / 3. present/not present short to B+ The fault is detected as present or not present. No details available. Signal implausible: The incoming signal to the control module deviates from the signal expected. No signal change: The incoming signal to the control module does not change. Open circuit or short to ground: There is (present)or was (not present)a short-circuitto ground or an open circuit in the circuit to the control module terminal. 45 -D 188 4503 Diagnosis/troubleshooting PSM System PSM05XX