Description of dealing with short circuits as of 09/2009

If a short circuit is detected in a circuit, the circuit is switched off  after ten seconds. This circuit remains switched off until there has been a terminal change (terminal 15 > terminal 30 -> terminal 15).

A renewed attempt to switch on is only made after a terminal change. The control unit permanently switches off  the corresponding output if a total of 10 terminal changes  have taken place while there is a short circuit in a circuit. After repairing the short circuit, the output is reactivated using a diagnosis command in the testing procedure.

If the short circuit is still present, the output will be switched off again  after 10 seconds and permanently switched off again after another 10 terminal changes  . Exception: xenon bulbs: If the short circuit is still present in the circuit of a xenon bulb, the output will be switched off again  after 10 seconds and permanently switched off again after another 4 terminal changes  .

An output can be reactivated 5 times by a diagnosis command in the testing procedure. The footwell module permanently switches off  the corresponding output if a total of 60 terminal changes  have taken place while there is a short circuit in the circuit. Exception: xenon lamps: A xenon output can be reactivated 5 times by a diagnosis command in the testing procedure. The footwell module permanently switches off  the corresponding output if a total of 24 terminal changes  have taken place while there is a short circuit in the circuit.

The output cannot be reactivated, even with the diagnostic command, and the fault entry can no longer be deleted. In this case, the footwell module must be replaced.