Operation CHARM: Car repair manuals for everyone.
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With Automatic Transmission

Power Steering Pressure Switch (PSPS):






The Power Steering Pressure Switch (PSPS) is located in the high pressure side of the power steering hydraulic system. This switch CLOSES when the hydraulic pressure reaches approximately 400-600 psi. The idle speed is adjusted to compensate for the additional engine load when the PCM senses this pressure signal.