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Old 23-08-2012   #1
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p0704, p1555,p0235=steering failure?

hi, does anyone have any clue how any of these weird codes could cause complete power steering failure?

p0704=clutch pedal position switch malfunction
p1555=brake/accelerator signal implausible
p0235=boost sensor a circuit malfunction

It has to be one of these causing the problem as i have done everything else to try to fix the power steering, changed column(its good), re-calibrated, checked fuses, wires, battery etc.

cant understand how seemingly unrelated problems such as these fault codes could cause steering problems. so if anyone has any suggestions of how they are related and/or how to fix these faults i would be very grateful.
many thanks
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Old 23-08-2012   #2
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Re: p0704, p1555,p0235=steering failure?

Having tried everything you've of course had the steering ecu fault codes read to see why it doesn't want to work?

These are engine fault codes, if the steering isn't working then the steering ecu will record its own codes
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