Description

A fault has been detected during the plausibility check of the pushbutton redundancy signals.

Effects on the driving operation

The transmission shifts to neutral.

After applying neutral and re-engaging the gear, driving may be possible again. If not, replace the gear range selector.

The limp-home switch allows activating the limp-home mode.

Possible causes

System handled incorrectly (pressing R with force while D,1,2,3 are depressed or vice versa).

Moisture has penetrated into the gear range selector.

Gear range selector defective.

Place of action

No description available.

Instruction

Apply all buttons and check them using the diagnostic function.

Replace gear range selector if necessary.

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.