Low Pressure Sensor / Switch: Service and Repair

REMOVAL
1. Disconnect and isolate the battery negative cable.

Fig.15 Low Pressure Cycling Clutch Switch Remove/Install - Typical:

2. Unplug the wire harness connector from the low pressure cycling clutch switch on the top of the accumulator.
3. Unscrew the low pressure cycling clutch switch from the fitting on the top of the accumulator.
4. Remove the O-ring seal from the accumulator fitting and discard.

INSTALLATION
1. Lubricate a new O-ring seal with clean refrigerant oil and install it on the accumulator fitting. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the compressor in the vehicle.
2. Install and tighten the low pressure cycling clutch switch on the accumulator fitting. The switch should be hand-tightened onto the accumulator fitting.
3. Plug the wire harness connector into the low pressure cycling clutch switch.
4. Connect the battery negative cable.