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2012 LMM TCM issues
I have a 2012 duramax with 116,000 miles. Truck has been great until I started it one morning only to find that my check engine light is on throwing p2534 and p163d. In addition to the error codes my service 4 wheel drive light is on. I started off by testing pin 63 on my TCM it is at 12 +...- cpetty1985
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- Forum: LMM