Description

Implausible brake switch signal.

Effects on the driving operation

No retarder operation.

Possible causes

Implausible signal concerning the respective brake switch stage. The signal is constituted by the 3 brake switch input signals.

Place of action

No description available.

Instruction

Set brake switch to valid position and check the afulty signal including the 3 inputs.

Setting conditions of the event

No description available.

Testing 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 function.

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

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

These steps are necessary to ensure the entire vehicle functions correctly.