AUDIO AND VISUAL SYSTEM 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.

WIRING DIAGRAM

B004X2SE01
*a from PANEL P Relay
*b Remote Operation Controller Assembly (Remote Touch)
*c Combination Meter Assembly
*d Other Systems

PROCEDURE


  1. CONFIRM SYMPTOMS


    1. B004TC5C03
      *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.

        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 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.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  2. REMOTE TOUCH SELF CHECK (SWITCH ILLUMINATION CHECK)


    1. Enter self-diagnostic mode.

      Click here

    2. B004YUHC01
      *a Switch Illumination
      *b Touch Screen

      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 in self-diagnostic mode.

      OK
      Brightness changes according to touch screen operation.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL CIRCUIT)


    1. Disconnect the G76 remote operation controller assembly (remote touch) connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G76-2 (ILL+) - Body ground

      Power switch on (IG)

      Light control switch in tail or head position

      		 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - COMBINATION METER ASSEMBLY)


    1. Disconnect the G76 remote operation controller assembly (remote touch) connector.

    2. Disconnect the G34 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G76-5 (ILL-) - G34-39 (ILL-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR