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Old September 27th, 2021, 20:30
lawsoncl lawsoncl is offline
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Join Date: Jan 2006
Location: North Idaho
Posts: 5,619
Re: P1698 on my 2001 xj should I replace the TCM

More than likely it's a corroded connector or damaged wire. It's pretty rare to have a bad TCM, and that usually manifests as a shifting issue that's not resolved by the usual fixes (tps, failing solenoid, etc).

Is it still shifting okay? The TCM connects to it's own sensors and really doesn't need to talk to the engine computer, aside from reporting error codes.
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