Refrigerant Pressure Sensor / Switch: Testing and Inspection

Refrigerant Pressure Sensor Circuit Check

Component Description
The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an electrostatic volume pressure transducer to convert refrigerant pressure to voltage.The voltage signal is sent to ECM, and ECM controls cooling fan system.









Diagnosis Procedure

Step 1-2:

Step 3-4:

Step 5-9: