NAVIGATION SYSTEM (for HDD) 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

A017FRKE08

INSPECTION PROCEDURE

Note


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

  • The vehicle is equipped with a 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
      Illumination comes on for all components except navigation receiver assembly and steering pad switch assembly. C
      No illumination comes on (navigation receiver assembly, steering pad switch assembly, hazard switch, glove box, etc.). D

    B

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

    C

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

    D

    GO TO LIGHTING SYSTEM Click here

    A

  2. CHECK HARNESS AND CONNECTOR (BATTERY - SPIRAL CABLE)


    1. A017FIIE48
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Spiral Cable)

      Disconnect the D53 spiral cable connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D53-12 (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. INSPECT SPIRAL CABLE


    1. A017B52E34
      Text in Illustration
      *a

      Component without harness connected

      (Spiral Cable)
      *b Steering Pad Switch Assembly Side
      *c Vehicle Side

      Disconnect the steering pad switch assembly and spiral cable connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z2-8 (EAU) - D53-4 (EAU) Center Below 1 Ω
      2.5 rotations to the left
      2.5 rotations to the right
      z2-5 (IL+2) - D53-12 (IL+2) Center Below 1 Ω
      2.5 rotations to the left
      2.5 rotations to the right

      Note

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

      Tech Tips



    NG

    REPLACE SPIRAL CABLE Click here

    OK

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


    1. Disconnect the E2 navigation receiver assembly connector.

    2. Disconnect the D53 spiral cable connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E2-6 (SWG) - D53-4 (EAU) Always Below 1 Ω
      E2-6 (SWG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Disconnect the z2 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.

      A017CUVE01

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

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

      Component without harness connected

      (Steering Pad Switch Assembly)

      		 - -

    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

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

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


    1. Disconnect the E6 navigation receiver assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      E6-10 (ILL+) - Body ground Light control switch in the tail or head position 11 to 14 V

    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 (NAVIGATION RECEIVER ASSEMBLY - BODY GROUND)


    1. Disconnect the E6 navigation receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E6-7 (GND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here