Grand Vitara 4WD V6-2.5L (2003)
Refrigerant Pressure Sensor / Switch: Testing and Inspection
A/C Refrigerant (Dual) Pressure Switch Inspection
1. Check dual pressure switch (1) on liquid pipe (3) 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 Performance Diagnosis of A/C System.
Dual pressure switch specifications
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)
