Quote:
Originally Posted by First c10
Hey Clint.
There is only 2 wires on the original switch shifter arm as it originally communicated with the BCM. To use tu/td you need a 12+ into the switch and a resisted wire for the up and the down independently. You also need to set TU/TD enabled and set to “wired” in the tune.
Not complicated if you just want a momentary switch on the dash or something. But the shifter will not just work without modify the shifter switch.
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Did you need to flash the TCM to get this to work? I was under the assumption that for a truck transmission, you had to have the TCM flashed to a Corvette tune in order for this to work, or there is a box that a few people were selling to bypass the tuning.