This is the code I get:

P0551 (M) Power Steering Switch Failure Incorrect input state detected for the power steering
switch circuit. PL: High pressure seen at high speed

Has anyone at all ever gotten this one? If so, how did you fix it?

(What is the (M) stand for, and PL?)

 

ok well to replace it you need a 7/8 deep socket and an extension... crwal under your car on the drivers side go past the front axel and look up to your left and there should be your power steering pump and there is gonna be a little electrical connector... take that off... reach up there with the socket n extension and take it out... and the new one goes in the same exact way...

 

Does it still run though??

Check wireing, fuses and those big black box things that are exspencive... I forget the name....
Uh....
Solinoid?

 

I have the same code, had it now for about 1000 miles.

Take what out? The pump??? Or the eletrical connecter?

 

there is an electrical connector in the part you need to replace...take the connector off, and then remove the part from the pump...the part is like the size of a 9volt battery.. not that hard to miss...

 

One last question... when i buy the replacement part what is it called? "power stering pump switch"??

Dumb question i know but i had to ask!!
thanks

 

i got my part from pep boys.. and they have it as power steering pump control valve... thing is they had tot order it so you may want to call and ask if they have it.. or go to a dealer