I have searched high and low but can’t find much information for a complete TECHM replacement procedure.
Does the VIN need to match the PCM? Or is it just a matter of using V8 to Full Flash?
TECHM is from same Make Model and Year. But I’m getting a no crank issue. Just wondering if it’s the lack of VIN matching as for some reason when using V8 to change VIN it does the process but when I read out it still has the old VIN?
If it doesn’t need to be linked then I will have to pull pan and check the manual valve and selector switch is ok.