NAVIGATION SYSTEM (for DVD) Illumination Circuit

DESCRIPTION

Power is supplied to the navigation receiver assembly and steering pad switch illumination when the light control switch is in the tail or head position.

WIRING DIAGRAM

A01JA3UE02

INSPECTION PROCEDURE

Note


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

  • The vehicle is equipped with an SRS (Supplemental Restraint System). Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System Click here.

PROCEDURE


  1. CHECK ILLUMINATION


    1. Check if the illumination for the navigation receiver assembly, steering pad switch assembly, glove box or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the tail or head position.

      Result
      Result Proceed to
      Illumination comes on for all components except steering pad switch assembly. A
      Illumination comes on for all components except navigation receiver assembly. B
      No illumination comes on (navigation receiver assembly, steering pad switch assembly, hazard switch, glove box, etc.). C
      Illumination comes on for all components except navigation receiver assembly and steering pad switch assembly. D

    B

    CHECK HARNESS AND CONNECTOR (BATTERY - NAVIGATION RECEIVER ASSEMBLY) Click here

    C

    GO TO LIGHTING SYSTEM Click here

    D

    CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (BATTERY - SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY)


    1. A01J8FKE27
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Spiral with Sensor Cable Sub-assembly)

      Disconnect the L52 spiral with sensor cable sub-assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L52-12 (IL+2) - Body ground Light control switch in tail or head 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY


    1. A01J99CE02
      Text in Illustration
      *1

      Component without harness connected

      (Spiral with Sensor Cable Sub-assembly)
      *2 Steering Pad Switch Assembly Side
      *3 Vehicle Side

      Disconnect the steering pad switch assembly and spiral with sensor cable sub-assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z9-8 (EAU) - L52-4 (EAU) Center Below 1 Ω
      2.5 rotations to the left
      2.5 rotations to the right
      z9-5 (IL+2) - L52-12 (IL+2) Center Below 1 Ω
      2.5 rotations to the left
      2.5 rotations to the right

      Note

      The spiral with sensor cable sub-assembly is an important part of the SRS airbag system. Incorrect removal or installation of the spiral with sensor cable sub-assembly may prevent the airbag from deploying. Refer to the pages shown in the brackets.

      Tech Tips



    NG

    REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (SPIRAL WITH SENSOR CABLE - NAVIGATION RECEIVER)


    1. A01J9R6E39

      Disconnect the L41 navigation receiver assembly connector.

    2. A01J8FKE28

      Disconnect the L52 spiral with sensor cable sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L41-6 (SWG) - L52-4 (EAU) Always Below 1 Ω
      L41-6 (SWG) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Navigation Receiver Assembly)
      *2

      Front view of wire harness connector

      (to Spiral with Sensor Cable Sub-assembly)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Disconnect the z9 steering pad switch assembly connector.

    2. Connect a positive (+) lead from the battery to terminal IL+2 and a negative (-) lead to terminal EAU of the steering pad switch assembly connector.

      A01J90WE01

    3. Check if the illumination for the steering pad switch comes on.

      OK
      Illumination for the steering pad switch comes on.
      Text in Illustration
      *1

      Component without harness connected

      (Steering Pad Switch Assembly)

      		 - -

    NG

    INSPECT STEERING PAD SWITCH RH Click here

    OK

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

  6. INSPECT STEERING PAD SWITCH RH


    1. Disconnect the SR1 and z9 steering pad switch RH connectors.

      A01JAX2E03

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      SR1-3 (IL+2) - z9-5 (IL+2) Always Below 1 Ω
      SR1-4 (EAU) - z9-8 (EAU) Always Below 1 Ω
      Text in Illustration
      *1

      Component without harness connected

      (Steering Pad Switch RH)

      		 - -

    NG

    REPLACE STEERING PAD SWITCH RH Click here

    OK

    REPLACE STEERING PAD SWITCH LH Click here

  7. CHECK HARNESS AND CONNECTOR (BATTERY - NAVIGATION RECEIVER ASSEMBLY)


    1. A01JDBNE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Navigation Receiver Assembly)

      Disconnect the L120 navigation receiver assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L120-10 (ILL+) - Body ground Light control switch in tail or head 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

  8. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY)


    1. A01JDBNE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Navigation Receiver Assembly)

      Disconnect the L120 navigation receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L120-7 (GND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here