Protege L4-1839cc 1.8L SOHC (1992)
Refrigerant Pressure Sensor / Switch: Testing and Inspection
Refrigerant Pressure Switch No.1 Inspection
1. Turn the ignition switch OFF.
2. Connect the manifold gauge set and measure the high-pressure side refrigerant pressure.
High-pressure side: Above 450 kPa (4.6 kgf/cm2, 65 psi)
3. If not as specified, check the refrigerant system.
4. If correct, go to next step.
5. Disconnect the refrigerant pressure switch No.1 connector.
6. Check for continuity of the switch.
7. If not as specified, replace the switch together with cooler pipe No.2.
Note:
^ If problems occur in the refrigeration system, causing abnormally high (above 2,460 - 2,840 kPa (25.0 - 29.0 kgf/cm2, 356 - 412 psi) or low
(below 180 - 210 kPa (1.8 - 2.2 kgf/cm2, 26 - 31 psi) pressures, refrigerant pressure switch No.1 cuts power to the magnetic clutch to protect
the mechanical components. If the pressure recovers to within normal operating range [below 1,670 - 2,450 kPa (17.0 - 25.0 kgf/cm2 , 242 -
355 psi) or above 360 - 450 kPa (3.6 - 4.6 kgf/cm2, 52 - 65 psi)], the power is again restored.
Refrigerant Pressure Switch No.2 Inspection (BP ENGINE WITH ATX ONLY)
1. Turn the ignition switch OFF.
