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P0551 code

Posted: Wed Nov 05, 2008 9:44 pm
by silentneon01
P0551(M) Power Steering Switch Failure Incorrect input state detected for the power steering switch circuit. PL: High pressure seen at high speed.

I've notice twice now while driving my temp guage takes a long time to reach its normal temp positon. So I figured I'd check my codes as my CEL stay on cause of my cat get a P420 code

When I ran the codes tonight this P0551 came up not sure how worried I need to be about it. Like can this wait till the weekend?

Posted: Wed Nov 05, 2008 11:50 pm
by occasional demons
It is the switch that tells the IAC to kick up the throttle when turning. (as in parking) This seems to be the common failure from what I've seen on here. It is just a matter of replacing it. IIRC it is mounted on the steering rack where the pinion is.