Check conduction with a circuit tester (ohm range)
according to the following figure.
18. Pressure Switch (Dual
Pressure switch is attached to receiver dryer. It has
two built-in switches.
1) Remove cap from high-pressure line service
valve, and connect gauge manifold to service
2) Disconnect pressure switch harness connector,
and check pressure switch for proper ON-OFF
operation. Use a circuit tester.
Terminal Operation High-pressure side line pressure
High and low
Increasing to 2,940±200 kPa (29.98±2.04 kg/cm
, 426.3±29.0 psi)
Decreasing to 177±25 kPa (1.80±0.25 kg/cm
, 25.6±3.6 psi)
Increasing to Less than 216 kPa (2.2 kg/cm
, 31 psi)
Decreasing to 2,354±196 kPa (24±2 kg/cm
, 341±28 psi)
4-7 [W17B0] SERVICE PROCEDURE
18. Pressure Switch (Dual Switch)