AUDIO AND VISUAL SYSTEM(for 8 Speakers) Switch Lights of Remote Touch do not Illuminate

DESCRIPTION

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

Tech Tips

Only the "AUDIO", "MENU" and return switches on the remote operation board illuminate.

WIRING DIAGRAM

A00070EE12
*a from Auxiliary Battery
*b PANEL
*c Combination Meter Assembly
*d Remote Operation Board

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)


    1. Disconnect the H181 remote operation board connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H181-1 (ILL+) - Body ground

      Power switch off

      Light control switch in tail or head position

      		 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (REMOTE OPERATION BOARD - COMBINATION METER ASSEMBLY)


    1. Disconnect the H181 remote operation board connector.

    2. Disconnect the H14 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H181-8 (ILL-) - H14-39 (ILL-) Always Below 1 Ω
      H181-8 (ILL-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE REMOTE OPERATION BOARD


    1. Replace the remote operation board with a new or known good one 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.

    OK

    END

    NG

    GO TO METER / GAUGE SYSTEM Click here