NAVIGATION SYSTEM(for Radio and Display Type) Reverse Signal Circuit

DTC Code DTC Name
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.

  • *1: except Manual Transaxle

  • *2: for Manual Transaxle

WIRING DIAGRAM

E307295E01

CAUTION / NOTICE / HINT

Note:

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

  • Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections.

    Click here

PROCEDURE

  1. CHECK VEHICLE SIGNAL (OPERATION CHECK)

    1. E278094

      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
      Tip:

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

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

  2. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

    1. E140414C41

      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)

      Disconnect the radio and display receiver assembly connector.

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      G143-2 (REV) - Body ground

      Ignition switch ON, shift lever in R

      7.5 to 14 V

      G143-2 (REV) - Body ground

      Ignition switch ON, shift lever not in R

      Below 1 V

    Result

    Result

    Proceed to

    OK

    A

    NG (except Manual Transaxle)

    B

    NG (for Manual Transaxle)

    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 G143 radio and display receiver assembly connector.

    2. Disconnect the B36 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

      G143-2 (REV) - B36-2 (RL)

      Always

      Below 1 Ω

      G143-2 (REV) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. E270424C12

      *a

      Front view of wire harness connector

      (to Park/neutral Position Switch Assembly)

      Disconnect the 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

      B36-1 (RB) - Body ground

      Ignition switch ON

      11 to 14 V

    Result

    Result

    Proceed to

    OK (for U760F)

    A

    OK (for U660F)

    B

    OK (for K111F)

    C

    NG

    D
    A

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    B

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    C

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    D

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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

    1. Disconnect the G143 radio and display receiver assembly connector.

    2. Disconnect the B35 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

      G143-2 (REV) - B35-1

      Always

      Below 1 Ω

      G143-2 (REV) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. E270423C07

      *a

      Front view of wire harness connector

      (to Back-up Light Switch Assembly)

      Disconnect the 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

      B35-2 - Body ground

      Ignition switch ON

      11 to 14 V

    Result

    Result

    Proceed to

    OK (for EB61F)

    A

    OK (for EB61)

    B

    OK (for EA64F)

    C

    OK (for EA64)

    D

    NG

    E
    A

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    Click here

    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

    E

    REPAIR OR REPLACE HARNESS OR CONNECTOR