AIR CONDITIONING SYSTEM Air Conditioning Control Panel Circuit

DESCRIPTION



WIRING DIAGRAM


  1. w/ Navigation System

    A01NDM4E01

  2. w/o Navigation System

    A01NGCLE02

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CONFIRM MODEL

    Result
    Result Proceed to
    w/ Navigation System A
    w/o Navigation System B

    B

    CHECK AVC-LAN CIRCUIT Click here

    A

  2. CHECK CAN COMMUNICATION SYSTEM


    1. Use the intelligent tester to check if the CAN communication system is functioning normally.

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  3. CHECK AVC-LAN CIRCUIT


    1. Check for an open or short in all AVC-LAN circuits Click here for HDD, Click here for DVD).

      OK
      There is no open or short circuit.

    NG

    REPAIR AVC-LAN CIRCUIT

    OK

  4. CHECK HARNESS AND CONNECTOR (POWER SOURCE, GROUND)


    1. A01NHYEE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to A/C Control Panel)

      Disconnect the A/C control panel connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G8-8 (+B) - Body ground Always 11 to 14 V
      G8-15 (IG+) - Body ground Power switch off Below 1 V
      G8-15 (IG+) - Body ground Power switch on (IG) 11 to 14 V
      G8-16 (ACC) - Body ground Power switch off Below 1 V
      G8-16 (ACC) - Body ground Power switch on (ACC) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G8-9 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  5. CHECK AVC-LAN CIRCUIT


    1. Check for an open or short in all AVC-LAN circuits Click here.

      OK
      There is no open or short circuit.

    NG

    REPAIR AVC-LAN CIRCUIT

    OK

  6. CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - ACCESSORY METER ASSEMBLY)


    1. A01NDH4E18

      Disconnect the A/C amplifier connector.

    2. A01NHJ2E11

      Disconnect the accessory meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F50-37 (LIN1) - G1-20 (LIN1) Always Below 1 Ω
      F50-37 (LIN1) - Body ground Always 10 k Ω or higher
      Text in Illustration
      *1

      Front view of wire harness connector

      (to A/C Amplifier)
      *2

      Front view of wire harness connector

      (to Accessory Meter Assembly)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (POWER SOURCE, GROUND)


    1. A01NHYEE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to A/C Control Panel)

      Disconnect the A/C control panel connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G8-8 (+B) - Body ground Always Always 11 to 14 V
      G8-16 (ACC) - Body ground Power switch off Below 1 V
      G8-16 (ACC) - Body ground Power switch on (ACC) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G8-9 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here