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AUDIO AND VISUAL SYSTEM(for 10.3 Inch Display) Switch Lights of Remote Touch do not Illuminate

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DTC Code DTC Name
  Switch Lights of Remote Touch do not Illuminate
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DESCRIPTION

Power is supplied to the remote touch (remote operation controller assembly) switch illumination when the light control switch is in the tail or head position.

Table 1. *a from TAIL Relay *b PANEL *c Combination Meter Assembly *d Remote Touch (Remote Operation Controller Assembly)
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE


  1. Click here

    CHECK SYMPTOMS


    1. B00677WC01
      *a Switch Illumination

      Perform the following procedure and check the switch illumination again.


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

        Tip:

        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 maximum brightness.

        Tip:

        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 it to the tail or head position.

        Tip:

        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.
      Result
      Proceed to
      OK
      NG

  2. Click here

    REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) SELF CHECK (SWITCH ILLUMINATION CHECK)


    1. Activate self-diagnostic mode.

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    2. B0065LKC01
      *a Switch Illumination
      *b Remote Touch Screen

      Check switch illumination.


      1. Operate the remote touch screen diagonally from the upper left to the lower right and check that the brightness of the switch illumination changes.

        Note:

        Since the remote touch screen may recognize a pinch in/out or flick operation if operated with 2 fingers, always use 1 finger to operate the remote touch screen in self-diagnostic mode.

        OK
        Brightness of the switch illumination changes according to remote touch screen operation.
      Result
      Proceed to
      OK
      NG

  3. Click here

    CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)


    1. Disconnect the O75 remote touch (remote operation controller assembly) connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      O75-2 (ILL+) - Body ground Light control switch in tail or head position 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. Click here

    CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY) - COMBINATION METER ASSEMBLY)


    1. Disconnect the O75 remote touch (remote operation controller assembly) connector.

    2. Disconnect the O3 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O75-5 (ILL-) - O3-39 (ILL-) Always Below 1 Ω
      O75-5 (ILL-) or O3-39 (ILL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. Click here

    REPLACE REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY)


    1. Replace the remote touch (remote operation controller assembly) with a new or known good one.

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    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.
      Result
      Proceed to
      OK
      NG