AUDIO AND VISUAL SYSTEM Illumination Circuit

DESCRIPTION

Power is supplied to the radio receiver illumination when the light control switch is in the TAIL or HEAD position.

WIRING DIAGRAM

A01BBP0E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK ILLUMINATION


    1. Check if the illumination for the radio receiver, A/T shift lever illumination, room light switch, A/C switch or others (blower switch, rear window defogger switch, etc.) comes on when the light control switch is turned to the HEAD or TAIL position.

      Result
      Result Proceed to
      Illumination comes on for all components except radio receiver. A
      No illumination comes on. B

    B

    GO TO LIGHTING SYSTEM

    A

  2. INSPECT RADIO RECEIVER


    1. A01BGYPE01

      Disconnect the radio receiver I2 connector.

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

      Standard resistance
      Tester connection Condition Specified condition
      GND - Body gorund Always Below 1 Ω

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

      Standard voltage
      Tester connection Condition Specified condition
      ILL+ - Body ground Light control SW HEAD or TAIL 10 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    RETURN TO THE ORIGINAL INSPECTION FLOW BECAUSE THE CHECK RESULT IS NORMAL