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Power Steering Pressure Switch: Testing and Inspection

POWER STEERING PRESSURE (PSP) SWITCH

The power steering oil pressure switch senses the power steering load and inputs it to PCM, which then adjusts the idle speed control motor to maintain idle speed when the power steering pump puts a load on the engine.

Circuit Diagram:

CIRCUIT DIAGRAM

Using Hi-Scan (Pro):

USING HI-SCAN (PRO)

HARNESS INSPECTION PROCEDURES
Refer to "P0551" DTC inspection procedures.