Service 4WD

[Jermoslin]

I'm converting my truck to 2wd from 4wd. Can the PCM be programed as a C instead of a K or can the U-code be deleated so the PCM does not send a fault message to the cluster? With a different VIN will the SIR light come on do to the fact BCM SIR and PCM will not have the same VIN

[GasGuzzler]

Don't worry about the SIR....the BCM/SDM synch has the most to do with the SIR key. As far as the VIN goes you can probably force the VIN to the BCM then do a theft relearn to get the SDM synched if needed. Depends on the year on how the TCCM reacts.

[Jermoslin]

that's what I did thisafter noon. Programmed the BCM with a 2WD VIN to see what happened and Did a 10min relearn.

[GasGuzzler]

Ooops....didn't work?