I've been tuning this truck for a year. Everytime I need to reflash the PCM, I have to read the PCM. Why do I have to read before I can write? Last night it asked me for a VIN #. It wouldn't write until I read the PCM to pull the VIN. Hmmm. This is on the latest Beta too. And Why does HP read the TCM if we can't adjust the setting in the Allson trans. It takes forever to read it.
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Not sure, what error do you get if you don't read it out first?I've been tuning this truck for a year. Everytime I need to reflash the PCM, I have to read the PCM. Why do I have to read before I can write?
Beta issues need to go through support, not our forum.Last night it asked me for a VIN #. It wouldn't write until I read the PCM to pull the VIN. Hmmm. This is on the latest Beta too.
Simply pull the tcm fuse if you want to do a pcm only read.And Why does HP read the TCM if we can't adjust the setting in the Allson trans. It takes forever to read it.
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
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