Power Steering Oil Pressure Switch

EC-PST/SW-01:

EC-PST/SW-01 Connector View:

WIRING DIAGRAM




COMPONENT DESCRIPTION
The power steering oil pressure switch is attached to the power steering pump 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.

Consult-II Reference Value In Data Monitor Mode:

ECM Terminals And Reference Value:

Diagnostic Procedure:

COMPONENT INSPECTION




Power steering oil pressure switch
1. Disconnect power steering oil pressure switch harness connector then start engine.




2. Check continuity between terminal (1) and ground.
If NG, replace power steering oil pressure switch.