Low Pressure Sensor / Switch: Service and Repair
A/C LOW PRESSURE SWITCHNOTE: LHD model shown. RHD model similar.
REMOVAL
NOTE: It is not necessary to discharge the refrigerant system to replace the A/C low pressure switch.
1. Disconnect and isolate the battery negative cable.
2. Disconnect the wire harness connector (1) from the A/C low pressure switch (2) located on the top of the A/C accumulator (3).
3. Remove the A/C low pressure switch from the A/C accumulator and remove and discard the O-ring seal.
INSTALLATION
NOTE: Use only the specified O-ring as it is made of special material for R-134a. Use only refrigerant oil of the type required for the A/C compressor.
1. Lubricate a new rubber O-ring seal with clean refrigerant oil and install it on the A/C low pressure switch fitting.
2. Install the A/C low pressure switch (2) onto the top of the A/C accumulator (3). Hand-tightened the switch securely.
3. Connect the wire harness connector (1) to the A/C low pressure switch.
4. Reconnect the negative battery cable.