Refrigerant Pressure Sensor / Switch: Testing and Inspection

HEATING / AIR CONDITIONING: AIR CONDITIONING PRESSURE SENSOR: ON-VEHICLE INSPECTION

1. INSPECT AIR CONDITIONER PRESSURE SENSOR

(a) Check the wire harness.





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(1) Disconnect the connector of the pressure sensor.

(2) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(3) Turn the ignition switch to ON.

(4) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





(b) Check the pressure sensor.





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(1) Set the manifold gauge.

(2) Connect the connector to the pressure sensor.

(3) Warm up the engine.

(4) A/C switch on.

(5) Measure the voltage according to the value(s) in the table below.

HINT
Check from the rear of the connector while it is connected to the air conditioning amplifier.

Standard Voltage: