Power Steering Oil Pressure Switch

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
Specification data are reference values.

EC-PST/SW-01:

EC-PST/SW-01 - Connector View:

Wiring Diagram

ECM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 48.:

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Step 7:

Diagnostic Procedure