Cadillac Seville / Cadillac Eldorado Forum Discussion, Dreaded P 056 Code in Past Cadillac Vehicle Discussion; Son's 1995 Seville SLS is getting the dreaded P056 Transmission Input Speed Sensor code. Check engine light on, I've reset ...
Dreaded P 056 Code Son's 1995 Seville SLS is getting the dreaded P056 Transmission Input Speed Sensor code. Check engine light on, I've reset the code several times and it comes back. The transmission shifts just fine and smooth thru all gears. Any help appreciated. Re: Dreaded PO56 Code If the DTC keeps coming back it's obviously detecting a failure in the ISS. Unfortunately it's not easy to get to. Re: Dreaded PO56 Code Thanks Ranger, well so long as everything seems to be fine as far as shifting and operation we'll see how long she will go before failing, will live with the check engine light. Re: Dreaded P 056 Code It's odd that you are not having any shifting problems. Re: Dreaded P 056 Code I know, shifts just as smooth as my '95 Eldorado, maybe smoother.
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