NAVIGATION SYSTEM (for HDD) Switch Lights of Remote Touch do not Illuminate

DESCRIPTION

Power is supplied to the remote touch illumination when the light control switch is in the tail or head position.

Tech Tips

Only the "MAP/VOICE" and "MENU" switches on the remote touch illuminate.

WIRING DIAGRAM

A003Y9QE04

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CONFIRM SYMPTOMS


    1. A003WGJE04
      Text in Illustration
      *a Switch Illumination

      Perform the following settings and check the switch illumination again.


      1. When the vehicle is in a bright area, move to a dark area.

        Tech Tips

        When the vehicle is in a bright area, the switch illumination may not turn on due to the automatic dimmer function.

      2. Set the rheostat to the maximum brightness.

        Tech Tips

        If the brightness of the rheostat is set to low, switch illumination may not be recognized even when the switch illumination turns on.

      3. If the light control switch is in the AUTO position, turn the switch to the tail or head position.

        Tech Tips

        If the light control switch is in the AUTO position, the switch illumination will not turn on unless the surrounding area is dark.

        OK
        Switch illumination turns on.

    NG

    REMOTE TOUCH SELF CHECK (SWITCH ILLUMINATION CHECK) Click here

    OK

    END

  2. REMOTE TOUCH SELF CHECK (SWITCH ILLUMINATION CHECK)


    1. Activate self check mode Click here.

    2. A003V4HE07
      Text in Illustration
      *a Switch Illumination
      *b Switch Knob

      Check switch illumination.


      1. Move the remote touch switch knob from the lower left to the upper right to check that the brightness of the switch illumination changes.

        OK
        The switch illumination brightness changes according to the remote touch switch knob operation.

    NG

    REPLACE INTEGRATION PANEL SUB-ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)


    1. Disconnect the H70 remote touch connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H70-6 (ILL+) - Body ground Light control switch in the tail or head position 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR


    1. Disconnect the H70 remote touch connector.

    2. Disconnect the H19 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H70-4 (ILL-) - H19-10 (ILL-) Always Below 1 Ω
      H70-4 (ILL-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE REMOTE OPERATION BOARD


    1. Replace the remote operation board Click here.

    2. Check if the switch illumination turns on.

      OK
      The switch illumination turns on when the light control switch is in the tail or head position.

    NG

    GO TO METER / GAUGE SYSTEM Click here

    OK

    END

  6. REPLACE INTEGRATION PANEL SUB-ASSEMBLY


    1. Replace the integration panel sub-assembly Click here.

    2. Check if the switch illumination turns on.

      OK
      The switch illumination turns on when the light control switch is in the tail or head position.

    NG

    REPLACE REMOTE OPERATION BOARD Click here

    OK

    END