XL-7 Limited 4WD V6-2.7L (2002)
Refrigerant Pressure Sensor / Switch: Testing and Inspection
Dual (Refrigerant) Pressure Switch Inspection
1. Check dual pressure switch (1) on liquid pipe for continuity at normal temperature (approx. 25 °C, 77 °F) when A/C system has a proper charge of
refrigerant and when A/C system (compressor) is under operation. In each of these cases, switches should show proper continuity.
2. Using a manifold gauge set, check switch for operation specified pressure as shown, refer to "A/C System Performance Inspection:".
Dual pressure switch specification
Switch ON: above "C" and below "D"
Switch OFF: below "A" or above "B"
"A": Approx. 200 kPa (2.0 kg/sq.cm)
"B": Approx. 3200 kPa (32 kg/sq.cm)
"C": Approx. 23 kPa (2.3 kg/sq.cm)
"D": Approx. 2800 kPa (28 kg/sq.cm)
Tightening torque
Dual pressure switch: 10 N.m (1.0 kg-m, 7.5 lb-ft)
