AUDIO AND VISUAL SYSTEM(for Radio Receiver Type) Dimmer Signal Circuit

DESCRIPTION

The combination meter assembly sends an auto dimmer signal to the radio receiver assembly via this circuit.

When the radio receiver assembly receives an auto dimmer signal from the combination meter assembly, the panel switch of the radio receiver assembly dims and the screen changes to the night screen.

WIRING DIAGRAM

B0024TUE08
*a ACAN
*b ADIM
*c Combination Meter Assembly
*d Radio Receiver Assembly

CAUTION / NOTICE / HINT

Note

When replacing the combination meter assembly, make sure to replace it with a new one.

PROCEDURE


  1. CHECK COMBINATION METER ASSEMBLY


    1. B002724C53
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      Disconnect the radio receiver assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G117-3 (ADIM) - Body ground Ignition switch ON, automatic light control sensor covered by hand, and light control switch in tail or head position 9 V or higher
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY)


    1. Disconnect the G117 radio receiver assembly connector.

    2. Disconnect the G8 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G117-3 (ADIM) - G8-4 (ACAN) Always Below 1 Ω
      G117-3 (ADIM) or G8-4 (ACAN) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR