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You are correct, I verified 24 volts on two pins of the gray connector. constant 24v

I’m running the oil that was in it, so probably 15/40 yes. Haven’t done a relearn yet. Temps here in the 30’s 40’s. I does sit inside and it’s usually 60 or so. I only shifts hard on the first few shifts, then it’s better and better until you let it set for a few hours. Not a problem but...

No transmission problems at all, no codes. I had a friend that worked at Allison many years ago and had described the first learning transmissions. He said when they were new the transmissions would shift very hard until they learned how you drive and the load on the transmission. I...

It’s a 2001 A1. M1078

I was wondering if anyone has verified 12 volts to the keep alive memory.. From what I have read it looks to be pins 10 and 70. Or wires 110 & 170. Pink wires? I haven’t checked my truck yet. Might explain the harsh shifts on start up?