NAVIGATION SYSTEM Reverse Signal Circuit

DESCRIPTION

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


WIRING DIAGRAM

A005GQVE03

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK VEHICLE SIGNAL (OPERATION CHECK)


    1. A005HAP

      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.


    OK

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

    NG

  2. CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL)


    1. A005MG6E01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)

      Disconnect the F47 radio and display receiver assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      F47-2 (REV) - Body ground

      Ignition switch ON

      Shift lever in R

      		 11 to 14 V

      Ignition switch ON

      Shift lever in any position other than R

      		 Below 1 V

    3. Proceed to the next step based on the check result.

      Result
      Result Proceed to
      OK A
      NG (for CVT) B
      NG (except CVT) C

    A

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    C

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

    B

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


    1. Disconnect the F47 radio and display receiver assembly connector.

    2. Disconnect the B69 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
      F47-2 (REV) - B69-2 (RL) Always Below 1 Ω
      F47-2 (REV) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A005MD0E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Park/neutral Position Switch Assembly)

      Disconnect the B69 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
      B69-1 (RB) - Body ground Ignition switch ON 11 to 14 V

    OK

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)


    1. Disconnect the F47 radio and display receiver assembly connector.

    2. Disconnect the B71 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
      F47-2 (REV) - B71-1 Always Below 1 Ω
      F47-2 (REV) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the B71 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
      B71-2 - Body ground Ignition switch ON 11 to 14 V

    3. Proceed to the next step based on the check result.

      Result
      Result Proceed to
      NG A
      OK (for EC65) B
      OK (for EC63) C

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY (for EC65) Click here

    C

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY (for EC63) Click here