Operation CHARM: Car repair manuals for everyone.

Refrigerant Pressure Sensor / Switch: Testing and Inspection

Terminal Identification - Triple Pressure Switch:





1. Disconnect the connector and check for continuity between pressure switch side connector terminals (1) and (2).
2. Reconnect the connector to activate the A/C switch, and check to see if there is continuity between the chassis side connector terminals and the fan operates.




A/C OFF




A/C ON