Description

Line interruption in supply line or short circuit of supply line to ground.

Effects on the driving operation

No retarder operation.

No brake pedal position, thus possible consequences are:

No ANS.

No gear release.

Possible causes

The connection between control unit and brake switch is interrupted or there is a short-circuit to ground in the cabling.

Place of action

No description available.

Instruction

Check plug connections, cabling and brake switch.

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.

See also:

		Troubleshooting for cable break
		Troubleshooting a short-circuit to ground
		Aftersales service index