NAVIGATION SYSTEM (for HDD) Reverse Signal Circuit

DESCRIPTION

The display and navigation module display receives a reverse signal from the park/neutral position switch assembly*1 or back-up light switch assembly*2 and information about the GPS antenna, and then adjusts the vehicle position.


WIRING DIAGRAM

A009590E01

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY (DISPLAY CHECK MODE)


    1. A009880E17

      Enter the "Display Check" mode and select "Vehicle Signal Check" Click here.

    2. Check that the display changes between ON and OFF according to the shift lever operation.

      OK
      Shift Lever Position Display
      R ON
      Except R OFF

      Tech Tips

      This display is updated once per second. As a result, it is normal for the display to lag behind the actual shift lever operation.


    NG

    CHECK DISPLAY AND NAVIGATION MODULE DISPLAY Click here

    OK

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

  2. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY


    1. A009B2RE07
      Text in Illustration
      *a

      Component with harness connected

      (Display and Navigation Module Display)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      H4-16 (REV) - Body ground Ignition switch ON, shift lever in R 11 to 14 V
      H4-16 (REV) - Body ground Ignition switch ON, shift lever in any position except R Below 1 V
      Result
      Result Proceed to
      OK A
      NG (for Automatic Transmission) B
      NG (for Manual Transmission) C

    B

    CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY) Click here

    C

    CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH - BATTERY) Click here

    A

    REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Click here

  3. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY)


    1. A0096F2E08
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Park/Neutral Position Switch Assembly)

      Disconnect the C40 park/neutral position switch assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C40-2 (RB) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    1. A0098V5E11

      Disconnect the C40 park/neutral position switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (RL) - 2 (RB) Shift lever in R Below 1 Ω
      Shift lever in P 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (for A750F) B
      NG (for A343F) C

    B

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

    C

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - SWITCH)

  5. CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH - BATTERY)


    1. A0097FFE04
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Back-up Light Switch Assembly)

      Disconnect the C41 back-up light switch assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C41-2 - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT BACK-UP LIGHT SWITCH ASSEMBLY


    1. A0094I1

      Disconnect the C41 back-up light switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Shift lever in R Below 1 Ω
      Shift lever in P 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (for RA61F) B
      NG (for R150F) C
      NG (for G52F) D

    B

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here

    C

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here

    D

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - SWITCH)