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Tahoe & SuburbanThe power, space, and brutal towing ability make the Tahoe and its longer sibling, the Suburban, arguably the best full size SUV's on the market today.
I have a 1998 Chevy Suburban 1500 that is 2WD. Does anybody know where to locate the Transmission Control Module on a truck like mine? I have been told there isn't one. Then told that it is in the PCM. Does anybody know the exact location of the TCM?
I have a 1996 C1500, with the 4L60E transmission, and do not believe there is a separate Transmission Control Module on the GMT400 platform, which includes your 1998 Suburban 1500. If you look at the electronic component diagram, here, you won't see one called out:
That said, while I've driven and worked on a GMT400 for decades, I don't know everything, and someone else more educated than me may come along with better information... in the meantime, the online manual is your best resource to dig through. I can say that my Haynes book for the 1988-1998 GM trucks does not mention a transmission control module.
TCM location on a 98 Chevrolet Suburban 1500
