MM3 Tuner - ECM Communication Error - Code 18504

[Morbious]

Sorry, I meant the scanner can clear codes as a function!

Those codes come back, but others from disconnecting the battery cleared and didn't return.

I can read codes from ABS and SRS, and it says my TCM doesn't support the reading DTC function.

I am not sure if that's the cause of the scanner.

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[AK Bob]

Sorry, I meant the scanner can clear codes as a function!

Those codes come back, but others from disconnecting the battery cleared and didn't return.

I can read codes from ABS and SRS, and it says my tcm doesn't support the reading dtc function.

I am not sure if that's the cause of the scanner!?

Yes, I don’t know either.

It’s a tough call, and you may have multiple problems.

The codes show lost communications with the TCM, ECM & IPM, but you can communicate with the ABS & SRS.

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[Morbious]

It was the TIPM!

Thanks for all the help.

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[AK Bob]

It was the TIPM!

Thanks for all the help.

Thanks for the update, pleased to help!

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