NAVIGATION SYSTEM Reverse Signal Circuit

DESCRIPTION

The navigation receiver assembly receives a reverse signal from the park/neutral position switch assembly*1 or back-up light switch assembly*2.


WIRING DIAGRAM

A01DYJ8E02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK VEHICLE SIGNAL (OPERATION CHECK)


    1. A01E310

      Enter the "Vehicle Signal Check Mode" screen. Refer to check Vehicle Signal in Operation Check Click here.

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

      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 position.


    NG

    CHECK NAVIGATION RECEIVER ASSEMBLY Click here

    OK

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

  2. CHECK NAVIGATION RECEIVER ASSEMBLY

    A01DVDXE80
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Navigation Receiver Assembly)

    1. Disconnect the N9 navigation receiver assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      N9-2 (REV) - Body ground Ignition switch ON, shift lever in R 7.5 to 14 V
      N9-2 (REV) - Body ground Ignition switch ON, shift lever not in 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 (NAVIGATION RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) Click here

    C

    CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY) Click here

    A

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

  3. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)


    1. Disconnect the N9 navigation receiver assembly connector.

    2. Disconnect the N8 park/neutral position switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N9-2 (REV) - N8-1 (RL) Always Below 1 Ω
      N9-2 (REV) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (for A750E) A
      OK (for A750F) B
      NG C

    B

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

  4. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)


    1. Disconnect the N9 navigation receiver assembly connector.

    2. Disconnect the B1 back-up light switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N9-2 (REV) - B1-1 Always Below 1 Ω
      N9-2 (REV) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY Click here