Checking The Control Module

Checking the control module

Checking the status of the diagnostic trouble code (DTC)




- Start the engine and let it idle for approximately 60 seconds.
Read off diagnostic trouble codes (DTCs).









Is the status of diagnostic trouble code (DTC) AT-511 intermittent?

Yes - No more action

No - Checking the control module

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Checking the control module
Check that the engine control module (ECM) and transmission control module (TCM) P/Ns correspond with those in the replacement parts catalogue for that model year.
Remedy as necessary.





Continue - FAULT FOUND

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No more action
No more fault-tracing is carried out.
The control module has previously registered a fault.





Continue - FAULT FOUND

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