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

DESCRIPTION

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

If the LIN communication system malfunctions, the air conditioning amplifier assembly does not operate when the air conditioning control assembly is operated.

WIRING DIAGRAM

A01X53TE47

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


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


    1. Disconnect the E81 air conditioning amplifier assembly connector.

    2. Disconnect the F10 air conditioning control assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E81-37 (LIN1) - F10-5 (LIN1) Always Below 1 Ω
      F10-5 (LIN1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01X81KE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly)

      Disconnect the F10 air conditioning control assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F10-7 (IG+) - F10-1 (GND) Ignition switch off Below 1 V
      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
      F10-1 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE AIR CONDITIONING CONTROL ASSEMBLY


    1. Temporarily replace the air conditioning control assembly with a new or normally functioning one Click here.


    NEXT

  4. CHECK AIR CONDITIONING CONTROL ASSEMBLY


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

      OK
      Air conditioning control assembly operates normally.

    OK

    END (AIR CONDITIONING CONTROL ASSEMBLY IS FAULTY)

    NG

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here