Description

Brake switch input 2 and 3 inadmissibly active.

Effects on the driving operation

No retarder function.

No brake pedal position, thus possible consequences are:

No ANS.

No engaging of gears.

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 connections, cabling and brake switch, if applicable.

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.