Ashley P Posted October 25 Share Posted October 25 2012 wrangler w/5 speed "NAG1" or "W5A580" Mercedes automatic trans. Limp mode, p0753 "1-2 / 4-5 Solenoid circuit" fault. Followed diag flow chart which is checking the wires and solenoid for resistance/shorts, all wires were good. Replace TCM. Not fixed. Retested. Same results. Switched "contact plate" (circuit board at valve body) as an educated guess. Truck shifted perfectly from 3 stops, then back to p0753. Replaced the contact plate AGAIN. Did not fix it at all. My hunch is that the code is generated from a shifting concern yet the code only covers the electrical side. I'm up a creek.... Quote Link to comment Share on other sites More sharing options...
Ashley P Posted October 25 Author Share Posted October 25 Also called a "722.6". Quote Link to comment Share on other sites More sharing options...
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