Power Steering Oil Pressure Switch Circuit

COMPONENT DESCRIPTION




The power steering oil pressure switch is attached to the power steering high-pressure tube and detects a power steering load. When a power steering load is detected, it signals the ECM. The ECM adjusts the IACV-AAC valve to increase the idle speed and adjust for the increased load.

CIRCUIT OPERATIONAL INSPECTION

Circuit Diagram:

Diagnostic Chart (Part 1 Of 2):

Diagnostic Chart (Part 2 Of 2):

COMPONENT INSPECTION

View: Test Connections:

Continuity Chart:

Power Steering Oil Pressure Switch
1. Disconnect power steering oil pressure switch harness connector then start engine.
2. Check continuity between terminals (1) and (2).
If NG, replace power steering oil pressure switch.