Power Steering Pressure Switch: Testing and Inspection

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.

Consult-II Reference Value In Data Monitor Mode:

ECM Terminals And Reference Value:

EC-PST/SW-01:

EC-PST/SW-01 Connector View:

Wiring Diagram

Super Multiple Junction (SMJ) - Terminal Arrangement:

Steps 1 - 3:

Steps 4 - 6:

Step 7:

Diagnostic Procedure