Refrigerant Pressure Sensor / Switch: Service and Repair

Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement

Special Tools

J 39400 Halogen Leak Tester

Removal Procedure

Danger: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.


Warning: Refer to Safety Glasses Warning (Safety Glasses Warning).

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).




2. Disconnect the A/C refrigerant pressure sensor electrical connector (2).





Note: A Schrader valve is fitted to the A/C refrigerant pressure sensor port (1). Upon removal of the A/C refrigerant pressure sensor (3) you will, for a very short period, hear refrigerant escape until the Schrader valve reseats. If refrigerant continues to escape while removing the A/C refrigerant pressure sensor (3) STOP IMMEDIATELY. The Schrader valve has a fault and the refrigerant will have to be recovered.

3. Remove the A/C refrigerant pressure sensor (3) from the A/C refrigerant pressure sensor port (1).

Note: The O-ring seal (2) is a single use item and must be discarded after use.

4. Remove the O-ring seal (2). Refer to O-Ring Replacement (O-Ring Replacement).
Discard the O-ring seal.

Installation Procedure




1. Install the NEW O-ring seal (2). Refer to O-Ring Replacement (O-Ring Replacement).

Caution: Refer to Fastener Caution (Fastener Caution).

2. Install the A/C refrigerant pressure sensor to the A/C refrigerant pressure sensor port (1) and tighten to 6 Nm (53 lb ft).




3. Connect the A/C refrigerant pressure sensor electrical connector (1).
4. Lower the vehicle to the ground.
5. Leak test the fittings of the component using the J 39400 .