Description

The checksum calculation has failed.

Effects on the driving operation

Hard shifts and inaccurate temperatures.

Possible causes

Copying from FRAM to RAM unsuccessful. Adjustment data are faulty. The checksum stored in the FRAM is incorrect.

Place of action

No description available.

Instruction

Load updated software, if unsuccessful, replace control unit.

Setting conditions of the event

No description available.

Test 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 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