My service engine soon light came on and the guy at O’reilly’s put the OBD-II on it and P1698 came up. This has something to do with the TCM not communicating with the BCM or some such thing. I have been searching all over the web for P1698 and it seems to be usually associated with dash lights and gages being intermittent. Our gages are intermittent but right now are working fine. They say they fix is to take the instrument cluster out and resolder the grounds to the main connector. That seems to get rid of the light and the P1698 code.
But if P1698 is that the TCM does not talk to the BCM, how does the cluster get into this?
I guess my real question is what do I do to get the light to go out and the code to go away? Resoldering the cluster just doesn’t ring true with this code description, but on the other hand, the description is not much of a help either.
Any assistance would be greatly appreciated.