Refrigerant Pressure Sensor / Switch: Testing and Inspection

A/C Dual Pressure Switch
1. Turn ignition switch OFF.
2. Connect manifold gauge set and measure high-pressure side refrigerant pressure.

High-pressure side:
Above 88 psi (608 kPa)

3. If not as specified, check refrigerant system, referring to troubleshooting information.




4. If correct, go to next step.
5. Disconnect A/C dual pressure switch connector.




6. Check for continuity of switch.




7. If not as specified, replace switch.