AIR CONDITIONING PRESSURE SENSOR > ON-VEHICLE INSPECTION

for Preparation Click here



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


    E163388E05

  1. Check the wire harness.
    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Air Conditioner Pressure Sensor)

    1. Disconnect the A26 air conditioner pressure sensor connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A26-1(-) - Body ground
      		Always
      		Below 1 Ω

    3. Turn the ignition switch to ON.

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

      Standard Voltage:
      Tester Connection
      		Condition
      		Specified Condition
      A26-1(-) - A26-3(+)
      		Ignition switch ON
      		4.75 to 5.25 V



    E177529E02

  1. Check the pressure sensor.
    Text in Illustration 
    *1
    		Component with harness connected
    (Air Conditioning Amplifier)

    1. Set the manifold gauge.

    2. Connect the D15 air conditioner pressure sensor connector.

    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:
      Tester Connection
      		Condition
      		Specified Condition
      D15-9(PRE) - D15-13(SG-2)
      		Refrigerant pressure:
      Normal pressure (less than 3.0254 MPa [30.9 kg/cm2, 439 psi] and more than 0.1762 MPa [1.8 kg/cm2, 26psi])
      		0.70 to 4.69 V
      Refrigerant pressure:
      Abnormal (less than 0.1762 MPa [1.8 kg/cm2, 26psi])
      		Below 0.70 V
      Refrigerant pressure:
      Abnormal (more than 3.0254 MPa [30.9 kg/cm2, 439 psi])
      		4.69 V or higher



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


    E163388E05

  1. Check the wire harness.
    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Air Conditioner Pressure Sensor)

    1. Disconnect the A26 air conditioner pressure sensor connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A26-1(-) - Body ground
      		Always
      		Below 1 Ω

    3. Turn the ignition switch to ON.

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

      Standard Voltage:
      Tester Connection
      		Condition
      		Specified Condition
      A26-1(-) - A26-3(+)
      		Ignition switch ON
      		4.75 to 5.25 V



    E177749E02

  1. Check the pressure sensor.
    Text in Illustration 
    *1
    		Component with harness connected
    (Air Conditioning Amplifier)

    1. Set the manifold gauge.

    2. Connect the D16 air conditioner pressure sensor connector.

    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:
      Tester Connection
      		Condition
      		Specified Condition
      D16-12(PRE) - D16-23(SG-1)
      		Refrigerant pressure:
      Normal pressure (less than 3.0254 MPa [30.9 kg/cm2, 439 psi] and more than 0.1762 MPa [1.8 kg/cm2, 26psi])
      		0.70 to 4.69 V
      Refrigerant pressure:
      Abnormal (less than 0.1762 MPa [1.8 kg/cm2, 26psi])
      		Below 0.70 V
      Refrigerant pressure:
      Abnormal (more than 3.0254 MPa [30.9 kg/cm2, 439 psi])
      		4.69 V or higher