Click here

AUDIO AND VISUAL SYSTEM(for Radio Receiver Type) Illumination Circuit

Click here
Click here
DTC Code DTC Name
  Illumination Circuit
Click here

DESCRIPTION

Power is supplied to the radio receiver assembly and steering pad switch assembly illumination when the headlight dimmer switch is in the tail or head position.

Click here

WIRING DIAGRAM

Click here

CAUTION / NOTICE / HINT

Note:

  • The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System (Click here).

  • Inspect the fuse or relay for circuits related to this system before performing the following inspection procedure.

Click here

PROCEDURE


  1. Click here

    CHECK ILLUMINATION


    1. Check if the illumination for the radio receiver assembly, steering pad switch assembly or others (hazard switch etc.) comes on when the headlight dimmer switch is turned to the head or tail position.

      Table 1. Result
      Result Proceed to
      Illumination comes on for all components except steering pad switch assembly. A
      Illumination comes on for all components except radio receiver assembly. B
      No illumination comes on (radio receiver assembly, steering pad switch, hazard switch, heater control switch, etc.). C

  2. Click here

    CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)


    1. A01X5GXE01

      Disconnect the spiral cable sub-assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E122-13 (IL+2) - Body ground Light control switch in the tail or head position 11 to 14 V
      Table 2. Text in Illustration
      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. Click here

    INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Remove the steering pad switch assembly (Click here).

    2. Inspect the steering pad switch assembly (Click here).


  4. Click here

    INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. Remove the spiral cable sub-assembly (Click here).

    2. Inspect the spiral cable sub-assembly (Click here).


  5. Click here

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY)


    1. Disconnect the F112 and F114 radio receiver assembly connectors.

    2. Disconnect the E122 spiral cable sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F114-23 (SWG) - E122-4 (EAU) Always Below 1 Ω
      F112-7 (GND) - Body ground Always Below 1 Ω
      F114-23 (SWG) - Body ground Always 10 kΩ or higher

    • OK

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

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. Click here

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - BATTERY AND BODY GROUND)


    1. A01XAI9E02

      Disconnect the radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F112-7 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F112-10 (ILL+) - Body ground Light control switch in the tail or head position 11 to 14 V
      Table 3. Text in Illustration
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)

    • OK

      REPLACE RADIO RECEIVER ASSEMBLY (Click here)

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR