Air Conditioning Pressure Sensor (For Sedan) On-Vehicle Inspection

Vehicle Interior. Yaris. Ncp93, 131
Heating Air Conditioning. Yaris. Ncp93, 131

  1. INSPECT PRESSURE SENSOR

Air Conditioning Pressure Sensor (For Sedan) -- On-Vehicle Inspection



1. INSPECT PRESSURE SENSOR


    Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning Pressure Sensor (For Sedan) On-Vehicle Inspection

  1. Check the wire harness.

    1. Disconnect the connector of the pressure sensor.

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

      Standard resistance:
      Tester Connection
      		Specified Condition
      1 - Body ground
      		Below 1 Ω

    3. Turn the ignition switch ON.

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

      Standard voltage:
      Tester Connection
      		Specified Condition
      1 - 3
      		4.7 to 5.3 V


    Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan).Air Conditioning Pressure Sensor (For Sedan) On-Vehicle Inspection

  1. Check the pressure sensor.

    1. Set the manifold gauge.

    2. Connect the connector to the pressure sensor.

    3. Warm up the engine.

    4. Switch A/C ON.

    5. Using a voltmeter, measure the voltage between connector terminals 6 (PRE) and 11 (SG-1) of the air conditioner amplifier.

      HINT:
      Check from the rear of the connector while the it is connected to the air conditioning amplifier.
      Standard voltage:
      Refrigerant Pressure
      		Specified Condition
      0.196 to 3.14 MPa (2.0 to 32 kgf/cm2)
      		0.76 to 4.74 V