HEADUP DISPLAY SYSTEM Main Switch Circuit

DESCRIPTION

The headup display switch assembly (integration control and panel assembly) and headup display (meter mirror sub-assembly) are connected via direct line. The headup display (meter mirror sub-assembly) can be turned off and on by operating the headup display switch assembly (integration control and panel assembly).

WIRING DIAGRAM

A01VW6OE24

PROCEDURE


  1. READ VALUE USING GTS (MAIN SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Head Up Display / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Head Up Display > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Main Switch Headup display switch assembly OFF or ON

      OFF: Switch released

      ON: Switch pushed

      		 -

      Body Electrical > Head Up Display > Data List
      Tester Display
      Main Switch
      OK
      Headup display switch assembly condition displayed on the GTS changes with the actual switch operation.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) Click here

    NG

  2. INSPECT HEADUP DISPLAY SWITCH ASSEMBLY (INTEGRATION CONTROL AND PANEL ASSEMBLY)


    1. Remove the integration control and panel assembly.

      Click here

    2. Inspect the integration control and panel assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) - INTEGRATION CONTROL AND PANEL ASSEMBLY)


    1. Disconnect the K1 headup display (meter mirror sub-assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K1-16 (SW1) - J83-5 (ILU) Always Below 1 Ω
      K1-15 (E) - J83-15 (CH) Always Below 1 Ω
      K1-16 (SW1) or J83-5 (ILU) - Body ground Always 10 kΩ or higher
      K1-15 (E) or J83-15 (CH) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR