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AIR CONDITIONING SYSTEM (for Automatic 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 air conditioning control assembly and air conditioning amplifier. When the air conditioning control assembly 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 air conditioning control assembly is operated.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

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PROCEDURE


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


    1. Disconnect the G24 amplifier connector.

    2. Disconnect the T3 control connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T3-3 (RLIN) - G24-13 (RLIN) Always Below 1 Ω
      T3-3 (RLIN) - Body ground Always 10 kΩ or higher

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


    1. A01DPV6E05

      Disconnect the T3 control connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      T3-5 (IG) - T3-8 (E) Ignition switch off Below 1 V
      T3-5 (IG) - T3-8 (E) Ignition switch ON 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T3-8 (E) - Body ground Always Below 1 Ω
      Table 1. Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly)

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    REPLACE AIR CONDITIONING CONTROL ASSEMBLY


    1. Replace the air conditioning control assembly with a new or normally functioning one (Click here).

    2. Operate the air conditioning control assembly to check that it functions properly.

      OK
      Air conditioning control assembly operates normally.

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

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    END (AIR CONDITIONING CONTROL ASSEMBLY IS FAULTY)