Description

CPU did not pass the arithmetic test

Effects on the driving operation

No description available.

Possible causes

Defect in the arithmetic unit of the CPU of the transmission control unit.

Location

Transmission control unit

Instruction

Replace control unit

Setting conditions for the event

No description available.

Test conditions for 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