EEPROM Memory Fault

EEPROM memory fault

Checking the status of the diagnostic trouble code (DTC)




- Switch the ignition off and on a number of times.
- Ignition on.
Read off diagnostic trouble codes (DTCs).









Is the status of diagnostic trouble code (DTC) AT-412 intermittent?

Yes - The memory circuit is OK

No - Replacing the component

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

Replacing the component




- Ignition off.
Try a new control module according to Replacing the transmission control module (TCM) .

Continue - FAULT FOUND

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

The memory circuit is OK
The control module has previously registered a fault. The memory circuit is now OK. No further action is required.





Continue - FAULT FOUND

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