AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System), Diagnostic DTC:B1467/67

DTC Code DTC Name
B1467/67 Rear Air Foot Duct Sensor Circuit on Driver Side

DESCRIPTION


The cooler thermistor (duct sensor LH*1 or RH*2) detects the duct temperature and sends the appropriate signals to the air conditioning amplifier assembly.

DTC Code DTC Detection Condition Trouble Area
B1467/67 An open or short in the air duct temperature sensor LH*1 or RH*2 circuit.

  • Cooler thermistor (duct sensor LH)*1

  • Cooler thermistor (duct sensor RH)*2

  • Harness or connector

  • Air conditioning amplifier assembly

WIRING DIAGRAM


  1. for LHD:

    A01X2GDE73
    *a RHTL
    *b Cooler Thermistor (Duct Sensor LH)
    *c Air Conditioning Amplifier Assembly

  2. for RHD:

    A01X2GDE74
    *a RHTR
    *b Cooler Thermistor (Duct Sensor RH)
    *c Air Conditioning Amplifier Assembly

PROCEDURE


  1. READ VALUE USING GTS (FOOT DUCT SENSOR [REAR D])


    • *1: for LHD

    • *2: for RHD


    1. Use the Data List to check if the cooler thermistor (duct sensor LH*1 or RH*2) is functioning properly Click here.

      Air Conditioner
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Foot Duct Sensor (Rear D) Cooler thermistor (duct sensor LH*1 or RH*2) / Min.: -12.7°C (9.14°F), Max.: 76.55°C (169.79°F) Cooler thermistor (duct sensor LH*1 or RH*2) displayed

      Cooler thermistor (duct sensor LH*1 or RH*2) system malfunction:


      • Open in the circuit: -12.7°C (9.14°F)

      • Short in the circuit: 76.55°C (169.79°F)
      OK
      The display is as specified in the normal condition.

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

  2. CHECK COOLER THERMISTOR (DUCT SENSOR [for Driver Side])


    1. Remove the cooler thermistor (duct sensor LH*1 or RH*2) Click here.

    2. Inspect the cooler thermistor (duct sensor LH*1 or RH*2) Click here


    NG

    REPLACE COOLER THERMISTOR (DUCT SENSOR) (for Driver Side) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (COOLER THERMISTOR [DUCT SENSOR] - AIR CONDITIONING AMPLIFIER ASSEMBLY)


    1. for LHD:


      1. Disconnect the K21 cooler thermistor (duct sensor LH) connector.

      2. Disconnect the E35 air conditioning amplifier assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        E35-18 (RHTL) - K21-1 Always Below 1 Ω
        E35-31 (SGND) - K21-2 Always Below 1 Ω
        E35-18 (RHTL) - E35-31 (SGND) Always 10 kΩ or higher
        E35-18 (RHTL) or K21-1 - Body ground Always 10 kΩ or higher
        E35-31 (SGND) or K21-2 - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the L12 cooler thermistor (duct sensor RH) connector.

      2. Disconnect the E35 air conditioning amplifier assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        E35-17 (RHTR) - L12-1 Always Below 1 Ω
        E35-31 (SGND) - L12-2 Always Below 1 Ω
        E35-17 (RHTR) - E35-31 (SGND) Always 10 kΩ or higher
        E35-17 (RHTR) or L12-1 - Body ground Always 10 kΩ or higher
        E35-31 (SGND) or L12-2 - Body ground Always 10 kΩ or higher

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR