Refrigerant Pressure Sensor / Switch: Service and Repair

Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure




1. Disconnect the air conditioning (A/C) refrigerant pressure sensor electrical connector (1).
2. Remove the A/C refrigerant pressure sensor (2).
3. Inspect and replace the O-ring seal (3) as necessary.

Installation Procedure

Important: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the O-ring seal to enter the refrigerant system.





1. Lightly coat the O-ring seal (3) with mineral base 525 viscosity oil.

Notice: Refer to Fastener Notice (Fastener Notice).

2. Install the A/C refrigerant pressure sensor (2).

Tighten the sensor to 5 N.m (44 lb in).

3. Connect the A/C refrigerant pressure sensor electrical connector (1).
4. Leak test the fitting using the J 39400-A.