Description

Unknown fault.

Effects on the driving operation

No retarder operation.

Possible causes

The cause could be a cable break or short-circuit to supply voltage.

If the fault 'Reference voltage too high' is also present, this indicates a short-circuit to supply voltage.

If only one temperature sensor reports this fault, there is probably a cable break at this sensor.

Place of action

No description available.

Instruction

Check plug connections, cabling and sensor.

Setting conditions of the event

No description available.

Testing conditions of the event

No description available.