NAVIGATION SYSTEM Illumination Circuit

DESCRIPTION

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

WIRING DIAGRAM

B0058INE01

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

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

    Click here

PROCEDURE


  1. CHECK ILLUMINATION


    1. Check if the illumination for the radio receiver assembly, multi-display assembly, steering pad switch assembly, remote touch or other components (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 radio receiver assembly. C
      Illumination comes on for all components except remote touch. D
      No illumination comes on (radio receiver assembly, steering pad switch, remote touch, hazard switch, heater control switch, etc.). E

    B

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

    C

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

    D

    CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - COMBINATION METER ASSEMBLY, BATTERY AND BODY GROUND) Click here

    E

    GO TO LIGHTING SYSTEM Click here

    A

  2. CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)


    1. B005ASRC11
      *a

      Front view of wire harness connector

      (to Spiral with Sensor Cable Sub-assembly)

      Disconnect the spiral with sensor cable sub-assembly connector.

      Click here

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I4-13 (IL+2) - Body ground Light control switch in the tail or head position 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Remove the steering pad switch assembly.

      Click here

    2. Inspect the steering pad switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

  4. INSPECT SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY


    1. Remove the spiral with sensor cable sub-assembly.

      Click here

    2. Inspect the spiral with sensor cable sub-assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY)


    1. Disconnect the I38 radio receiver assembly connector.

    2. Disconnect the I4 spiral with sensor cable sub-assembly connector.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I38-32 (SWG) - I4-3 (EAU) Always Below 1 Ω
      I38-32 (SWG) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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


    1. B0059JIC19
      *a

      Front view of wire harness connector

      (to Multi-display Assembly)

      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
      I42-13 (GND1) - 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
      I42-2 (ILL) - Body ground Light control switch in the tail or head position 11 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MULTI-DISPLAY ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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


    1. Disconnect the I38 radio receiver assembly connector.

    2. Disconnect the I10 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I38-13 (ILL-) - I10-39 (ILL-) Always Below 1 Ω
      I38-13 (ILL-) - Body ground Always 10 kΩ or higher

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I38-14 (ILL+) - Body ground Light control switch in the tail or head position 11 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY [REMOTE TOUCH] - COMBINATION METER ASSEMBLY, BATTERY AND BODY GROUND)


    1. Disconnect the I71 remote operation controller assembly (remote touch) connector.

    2. Disconnect the I10 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I71-5 (ILL-) - I10-39 (ILL-) Always Below 1 Ω
      I71-5 (ILL-) - Body ground Always 10 kΩ or higher

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I71-2 (ILL+) - Body ground Light control switch in the tail or head position 11 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR