AIR CONDITIONING PRESSURE SENSOR ON-VEHICLE INSPECTION
PROCEDURE
INSPECT AIR CONDITIONING PRESSURE SENSOR
Install a manifold gauge set.
Disconnect the connector from the air conditioning pressure sensor.
Connect the positive (+) lead of a DC 5 V power source to terminal 3 and the negative (-) lead to terminal 1.
Connect the positive (+) lead of the voltmeter to terminal 2 and the negative (-) lead to terminal 1.
Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection
Condition
Specified Condition
2(PR) - 1(-)
Refrigerant pressure:
0.39 to 3.187 MPa (57 to 463 psi)
1.0 to 4.8 V
If the result is not as specified, replace the air conditioning pressure sensor.