Operation CHARM: Car repair manuals for everyone.

Refrigerant Pressure Sensor / Switch: Service and Repair

A/C Dual Pressure Switch:






Remove or Disconnect

1. Discharge and recover refrigerant. Refer to Discharging, Adding Oil, Evacuating and Charging the Refrigeration System.
2. Negative (-) battery cable.
3. Air cleaner (ACL) and set aside.
4. A/C dual pressure switch electrical connector.
5. A/C dual pressure switch from evaporator outlet pipe.

Install or Connect

1. A/C dual pressure switch to evaporator outlet pipe.
2. A/C dual pressure switch electrical connector.
3. ACL to vehicle.
4. Negative (-) battery cable.
5. Evacuate and recharge air conditioning system. Refer to Discharging, Adding Oil, Evacuating and Charging the Refrigeration System.
6. Operate A/C system and check for refrigerant leaks. Refer to Refrigerant Leak Testing.