Internal Fault. Permanent Fault

Internal fault. Permanent fault

Replacing the control module and programming
The control module has registered an internal fault.

Caution! A new control module is delivered without software. The control module must be programmed in order to function after replacement.

For further information about programming and replacing the control module, see Transmission control module (TCM), replacing, B5244T5, AW55-50/51SN, B5254T2, AW55-50/51SN, B5254T2, AW50/51 AWD Service and Repair.






Continue - DONE

-------------------------------------------------

Checking the control module




- Ignition on
- Read off the check sum and calculated check sum.
Check that the check sums correspond.
If they do not correspond this indicates an internal fault in the control module.









Are the values correct?

Yes - No Fault Found

No - Replacing the control module and programming

-------------------------------------------------