Low Pressure Sensor / Switch: Service and Repair

Air Conditioning (A/C) Low Pressure Switch Replacement

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure




1. Disconnect the low pressure switch electrical connector (2).
2. Remove the low pressure switch (1) from the accumulator.
3. Remove the O-ring seal.

Installation Procedure




1. Install the new O-ring seal to the switch.

Notice: Refer to Fastener Notice.

2. Install the A/C low pressure switch (1) to the accumulator.

Tighten the switch to 4 N.m (35 lb in).

3. Connect the low pressure switch electrical connector (2).
4. Leak test the fittings of the component using the J 39400-A.