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ENGINE LIGHT Power steering

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Old 04 Oct 2016, 01:36 pm
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Join Date: Sep 2016
Location: Cambridgeshire UK
Posts: 10
Default ENGINE LIGHT Power steering

Engine light came on today. Got home put a scanner on it the code was P0551 the scan tool said power steering presser sensor. The Haynes manual gives for the code, incorrect power steering switch input detected. Correct amount of fluid in reservoir on checking. Ideas please ? New switch needed? Anyone had this and cured it? Thanks in advance
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Old 04 Oct 2016, 01:52 pm
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Join Date: Apr 2014
Location: Gladewater, Texas
Posts: 1,918
Default Re: ENGINE LIGHT Power steering

My 01 is throwing that code. My pressure switch is leaking fluid, so I thought that was the reason for the code. No, I have not replaced it at this time. Steers good and not leaking fluid, the switch is just wet.
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Old 04 Oct 2016, 02:38 pm
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Location: Thousand Oaks, CA
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Default Re: ENGINE LIGHT Power steering

P0551 - Power Steering Pressure Switch Circuit Failure:

Possible Causes:
1. Power Steering Pressure Switch sense circuit is open or is shorted to ground
2. Power Steering Pressure Switch ground circuit is open
3. Power Steering Pressure Switch is damaged or it has failed
4. PCM has failed

Have you checked the wiring and contacts going to the Power Steering Pressure switch?
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Old 04 Oct 2016, 02:47 pm
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Default Re: ENGINE LIGHT Power steering

Easy to change out but very messy job.

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