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I have not messed with the PCM/TCM off of my 2009 CC Silvy and dont want to. So i bought a used set.
I read the tune on the original set and then flashed the spare set but the VIN did not change and when I try to start the truck Nothing. I put my original set back in and everything back to normal.
Spare set comes from a 2007 silvy and mine is a 2009.
Im using HP Tuners
Nobody has ever had a spare PCM?
Comon fellas I cant find the answer anywhere.
First of all, you need to do a Write Entire, and wait 1 min with key off.
Then, perform the vats relearn, then crank relearn, then it'll start.
Before you perform the write entire, you can turn vats off.
OK thanks ill try that!
I have done the write entire but have not waited with the key off!
I have done all that just not in that order.
Hopefully it will work!
If you turn vats off, no need to do the relearn, it'll still start with no ckp relearn too.Quote:
Originally Posted by 99kon
vats is what's stopping you.
the write entire will transfer the vin too.
Well it starts.
drove and it will not go into 3 gear 3500 rpm at 60 mph. Lol
stabilytrack
Traction control
Are all needing servicing according to the pcm. Ill have to do some more digging arround but atlesast its starting.
Thanks for the help