AIR CONDITIONING PRESSURE SENSOR ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT AIR CONDITIONER PRESSURE SENSOR (for Manual Air Conditioning System)


    1. A005M3HE09
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Conditioner Pressure Sensor)

      Check the wire harness.


      1. Disconnect the connector of the air conditioner pressure sensor.

      2. Using an ohmmeter, measure the resistance of the wire harness side connector.

        Standard Resistance
        Tester Connection Condition Specified Condition
        1 (-) - Body ground Always Below 1 Ω

      3. Turn the ignition switch to ON.

      4. Measure the voltage of the wire harness side connector.

        Standard Voltage
        Tester Connection Switch Condition Specified Condition
        1 (-) - 3 (+) Ignition switch ON 4.75 to 5.25 V

    2. Check the air conditioner pressure sensor.

      A005MDFE01
      Text in Illustration
      *a

      Component with harness connected

      (Air Conditioning Amplifier Assembly)
      *b Voltage (V)
      *c MPa
      *d

      kgf/cm2

      *e psi
      *f Refrigerant Pressure

      1. Set the manifold gauge.

      2. Connect the connector to the air conditioner pressure sensor.

      3. Warm up the engine.

      4. Switch A/C ON.

      5. Using a voltmeter, measure the voltage between connector terminals 7 (PRE) and 5 (SG-2) of the air conditioning amplifier assembly.

        Tech Tips

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

        Standard Voltage
        Tester Connection Refrigerant Pressure Specified Condition
        7 (PRE) - 5 (SG-2)

        0.196 to 3.14 MPa

        (2.0 to 32 kgf/cm2,28 to 455 psi)

        		 0.66 to 4.88 V

  2. INSPECT AIR CONDITIONER PRESSURE SENSOR (for Automatic Air Conditioning System)


    1. A005M3HE09
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Conditioner Pressure Sensor)

      Check the wire harness.


      1. Disconnect the connector of the air conditioner pressure sensor.

      2. Using an ohmmeter, measure the resistance of the wire harness side connector.

        Standard Resistance
        Tester Connection Condition Specified Condition
        1 (-) - Body ground Always Below 1 Ω

      3. Turn the ignition switch to ON.

      4. Measure the voltage of the wire harness side connector.

        Standard Voltage
        Tester Connection Switch Condition Specified Condition
        1 (-) - 3 (+) Ignition switch ON 4.75 to 5.25 V

    2. Check the air conditioner pressure sensor.

      A005INYE01

      1. Set the manifold gauge.

      2. Connect the connector to the air conditioner pressure sensor.

      3. Warm up the engine.

      4. Switch A/C ON.

      5. Using a voltmeter, measure the voltage between connector terminals 9 (PRE) and 13 (SG-2) of the air conditioning amplifier assembly.

        Tech Tips

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

        Standard Voltage
        Tester Connection Refrigerant Pressure Specified Condition
        9 (PRE) - 13 (SG-2)

        0.196 to 3.14 MPa

        (2.0 to 32 kgf/cm2,28 to 455 psi)

        		 0.66 to 4.88 V
        Text in Illustration
        *a

        Component with harness connected

        (Air Conditioning Amplifier Assembly)
        *b Voltage (V)
        *c MPa
        *d

        kgf/cm2

        *e psi
        *f Refrigerant Pressure