Description

Brake switch input 2 inadmissibly inactive

Effects on the driving operation

No retarder activation

Possible causes

Implausible brake switch signals have occurred which indicate that the input is never active. The following causes are possible:

* Cable break.

* Short-circuit to the 'inactive side' of the input signal.

(The 'inactive side' is derived from the content of the dataset constant that is relevant for the signal configuration). )

Place of action

No description available.

Instruction

Check plug-in contacts, cabling and brake switch.

Setting conditions of the event

No description available.

Test conditions of the event

No description available.

Final function check

If the defective component cannot be clearly identified, you should try to reproduce the fault:

• Reinstall the component in the vehicle.
• Test the function.

After the fault has been eliminated, the following steps have to be carried out:

• Conduct a test drive with function check.
• Read out the fault memory.
• Check the transmission for leaks.
• Perform a final visual inspection.

These steps are necessary to ensure the entire vehicle functions.

See also:

		Aftersales service index