Low Pressure Sensor / Switch: Service and Repair

Air Conditioning (A/C) Low Pressure Switch Replacement

Removal Procedure

1. Disconnect the electrical connector from the A/C low pressure switch.




2. Remove the A/C low pressure switch from the accumulator.
3. Remove the O-ring and discard.

Installation Procedure

1. Lightly coat the NEW O-ring seal with mineral base 525 viscosity refrigerant oil.
2. Install the NEW O-ring seal to the switch.





Notice: Refer to Fastener Notice.

3. Install the A/C low pressure switch to the accumulator.

Tighten the switch to 6 N.m (53 lb in).

4. Connect the electrical connector to the A/C low pressure switch.
5. Leak test the fittings of the components using the J 39400-A.