Click here

NAVIGATION SYSTEM Illumination Circuit

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

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.

Click here

WIRING DIAGRAM

Click here

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.

Click here

PROCEDURE


  1. Click here

    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.

      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 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

  2. Click here

    CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)


    1. A015C1UE03

      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
      E12-12 (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)

  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 (MULTI-MEDIA MODULE RECEIVER ASSEMBLY, MULTI-DISPLAY ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY)


    1. Disconnect the F77 multi-media module receiver assembly connector.

    2. Disconnect the F79 multi-display assembly connector.

    3. Disconnect the E12 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
      F77-14 (ILL+) - E12-12 (IL+2) Always Below 1 Ω
      F77-32 (SWG) - E12-4 (EAU) Always Below 1 Ω
      F79-2 (ILL) - E12-12 (IL+2) Always Below 1 Ω
      F77-14 (ILL+) - Body ground Always 10 kΩ or higher
      F77-32 (SWG) - Body ground Always 10 kΩ or higher
      F79-2 (ILL) - Body ground Always 10 kΩ or higher

  6. Click here

    CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - BATTERY AND BODY GROUND)


    1. A0157V6E24

      Disconnect the multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F79-14 (ILL-) - 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
      F79-2 (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 Multi-display Assembly)

  7. Click here

    CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - BATTERY AND BODY GROUND)


    1. A0159M0E27

      Disconnect the multi-media module receiver assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F77-14 (ILL+) - Body ground Light control switch in the tail or head position 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F77-13 (ILL-) - Body ground Always Below 1 Ω
      Table 4. Text in Illustration
      *a

      Front view of wire harness connector

      (to Multi-media Module Receiver Assembly)

  8. Click here

    GO TO LIGHTING SYSTEMClick here

  9. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. Click here

    REPLACE STEERING PAD SWITCH ASSEMBLYClick here

  11. Click here

    REPLACE SPIRAL CABLE SUB-ASSEMBLYClick here

  12. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  13. Click here

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

  14. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  15. Click here

    REPLACE MULTI-DISPLAY ASSEMBLYClick here

  16. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  17. Click here

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLYClick here