Description

Checksum calculation has failed

Effects on the driving operation

Hard shifts.

Inaccurate temperatures.

Possible causes

Copying from FRAM to RAM was unsuccessful. Adjustment data are faulty.

The checksum stored in the FRAM is incorrect.

Place of action

No description available.

Instruction

Load updated software, if this remains without success, replace the control unit.

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.