AUDIO AND VISUAL SYSTEM Illumination Circuit

DESCRIPTION

Power is supplied to the multi-media module receiver assembly, multi-display assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position.

WIRING DIAGRAM

A01ENUDE04

INSPECTION PROCEDURE

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

PROCEDURE


  1. CHECK ILLUMINATION


    1. Check if the illumination for the multi-media module receiver assembly, multi-display assembly, steering pad switch assembly or others (hazard 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 steering pad switch assembly. A
      Illumination comes on for all components except multi-display assembly. B
      Illumination comes on for all components except multi-media module receiver assembly. C
      No illumination comes on (multi-media module receiver assembly, steering pad switch, hazard switch, heater control switch, etc.). D

    B

    CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - COMBINATION METER ASSEMBLY, BATTERY AND BODY GROUND) Click here

    C

    CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY, BATTERY AND BODY GROUND) Click here

    D

    GO TO LIGHTING SYSTEM Click here

    A

  2. CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)


    1. A01ERECE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Spiral Cable Sub-assembly)

      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
      E102-13 (IL+2) - Body ground Light control switch in the tail or head position 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK NO. 1 SWITCH WIRE


    1. Disconnect the z54 and z51 No. 1 switch wire connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z54-9 - z51-8 Always Below 1 Ω
      z54-5 - z51-1 Always Below 1 Ω
      z54-9 - Body ground Always 10 kΩ or higher
      z54-5 - Body ground Always 10 kΩ or higher

    NG

    REPLACE NO. 1 SWITCH WIRE

    OK

  4. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Remove the steering pad switch assembly Click here.

    2. Inspect the steering pad switch assembly Click here.


    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

  5. INSPECT SPIRAL CABLE SUB-ASSEMBLY


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

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


    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY, MULTI-DISPLAY ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY)


    1. Disconnect the F76 multi-media module receiver assembly connector.

    2. Disconnect the F78 multi-display assembly connector.

    3. Disconnect the E102 spiral cable sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F76-14 (ILL+) - E102-13 (IL+2) Always Below 1 Ω
      F76-32 (SWG) - E102-4 (EAU) Always Below 1 Ω
      F78-2 (ILL) - E102-13 (IL+2) Always Below 1 Ω
      F76-14 (ILL+) - Body ground Always 10 kΩ or higher
      F76-32 (SWG) - Body ground Always 10 kΩ or higher
      F78-2 (ILL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

  7. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - COMBINATION METER ASSEMBLY, BATTERY AND BODY GROUND)


    1. Disconnect the F78 multi-display assembly connector.

    2. Disconnect the E77 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F78-14 (ILL-) - E77-17 (ILL-) Always Below 1 Ω
      F78-14 (ILL-) - Body ground Always 10 kΩ or higher
      E77-20 (EP) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F78-2 (ILL) - Body ground Light control switch in the tail or head position 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MULTI-DISPLAY ASSEMBLY Click here

  8. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY, BATTERY AND BODY GROUND)


    1. Disconnect the F76 multi-media module receiver assembly connector.

    2. Disconnect the E77 combination meter assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F76-14 (ILL+) - Body ground Light control switch in the tail or head position 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F76-13 (HILL) - E77-17 (ILL-) Always Below 1 Ω
      E77-20 (EP) - Body ground Always Below 1 Ω
      F76-13 (HILL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here