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AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) Rear Air Conditioning Control Panel Circuit

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DTC Code DTC Name
  Rear Air Conditioning Control Panel Circuit
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DESCRIPTION

This circuit consists of the rear air conditioning control and the air conditioning amplifier. When the rear air conditioning control is operated, signals are transmitted to the air conditioning amplifier through the LIN communication system.

If the LIN communication system malfunctions, the air conditioning amplifier does not operate even if the rear air conditioning control is operated.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

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PROCEDURE


  1. Click here

    CHECK HARNESS AND CONNECTOR (REAR AIR CONDITIONING CONTROL - BODY GROUND)


    1. A017B96E17

      Disconnect the R1 rear air conditioning control connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      R1-10 (E) - Body ground Always Below 1 Ω

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    CHECK HARNESS AND CONNECTOR (REAR AIR CONDITIONING CONTROL - BATTERY)


    1. A017B96E18

      Disconnect the R1 rear air conditioning control connector.

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

      Standard voltage
      Tester Connection Condition Specified Condition
      R1-10 (E) - R1-2 (IG+) Ignition switch on (IG) 11 to 14 V

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    CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - REAR AIR CONDITIONING CONTROL)


    1. A017CYPE07

      Disconnect the R1 control connector.

    2. Disconnect the D34 amplifier connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      D34-13 (BLIN) - R1-5 (MPX-) Always Below 1 Ω
      D34-13 (BLIN) - Body ground Always 10 kΩ or higher

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    REPLACE REAR AIR CONDITIONING CONTROL


    1. Replace the rear air conditioning control (Click here).


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    REPLACE AIR CONDITIONING AMPLIFIERClick here

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    END (REAR AIR CONDITIONING CONTROL IS DEFECTIVE)

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    CHECK REAR AIR CONDITIONING CONTROL (OPERATION)


    1. Operate the rear air conditioning control to check that it functions properly.

      OK
      Rear air conditioning control function operates normally.