REAR VIEW MONITOR SYSTEM Reverse Signal Circuit

DTC Code DTC Name
Reverse Signal Circuit

DESCRIPTION

The radio and display receiver assembly*1 or navigation ECU sub-assembly*2 receives a reverse signal from the park/neutral position switch assembly*3 or back-up light switch assembly*4.

  • *1: w/o Navigation System

  • *2: w/ Navigation System

  • *3: except Manual Transaxle

  • *4: for Manual Transaxle

WIRING DIAGRAM

E271194E01
E271194E02

CAUTION / NOTICE / HINT

Note:

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

PROCEDURE

  1. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE)

    1. E270655

      Enter the "Function Check/Setting I" mode and select "Vehicle Signal".

    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 (w/o Navigation System)

    NG (w/ Navigation System)
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG (w/ Navigation System)

    CHECK NAVIGATION ECU SUB-ASSEMBLYClick here

    NG (w/o Navigation System)

  2. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

    1. E140414C09

      *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

      Condition

      Specified Condition

      G143-2 (REV) - Body ground

      Ignition switch ON, shift lever in R

      11 to 14 V

      G143-2 (REV) - Body ground

      Ignition switch ON, shift lever not in R

      Below 1 V

    Result

    Proceed to

    OK

    NG (except Manual Transaxle)

    NG (for Manual Transaxle)
    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click here

    NG (except Manual Transaxle)

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

    NG (for Manual Transaxle)

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

  3. CHECK NAVIGATION ECU SUB-ASSEMBLY

    1. E140414C10

      *a

      Front view of wire harness connector

      (to Navigation ECU Sub-assembly)

      Disconnect the navigation ECU sub-assembly connector.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      G139-2 (REV) - Body ground

      Ignition switch ON, shift lever in R

      11 to 14 V

      G139-2 (REV) - Body ground

      Ignition switch ON, shift lever not R

      Below 1 V

    Result

    Proceed to

    OK

    NG (except Manual Transaxle)

    NG (for Manual Transaxle)
    OK

    REPLACE NAVIGATION ECU SUB-ASSEMBLY

    Click here

    NG (except Manual Transaxle)

    CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)Click here

    NG (for Manual Transaxle)

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

  4. 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

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

    1. E270424C01

      *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

    Proceed to

    OK (for U660F)

    OK (for U760E)

    OK (for U760F)

    OK (for K111)

    OK (for K111F)

    NG
    OK (for U660F)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    OK (for U760E)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    OK (for U760F)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    OK (for K111)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    OK (for K111F)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

    1. Disconnect the G139 navigation ECU sub-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

      G139-2 (REV) - B36-2 (RL)

      Always

      Below 1 Ω

      G139-2 (REV) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. E270424C01

      *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

    Proceed to

    OK (for U660F)

    OK (for U760E)

    OK (for U760F)

    OK (for K111)

    OK (for K111F)

    NG
    OK (for U660F)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    OK (for U760E)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    OK (for U760F)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    OK (for K111)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    OK (for K111F)

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. 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

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

    1. E270423C02

      *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

    Proceed to

    OK (for EA64)

    OK (for EA64F)

    OK (for EB61)

    OK (for EB61F)

    NG
    OK (for EA64)

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    Click here

    OK (for EA64F)

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    Click here

    OK (for EB61)

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    Click here

    OK (for EB61F)

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)

    1. Disconnect the G139 navigation ECU sub-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

      G139-2 (REV) - B35-1

      Always

      Below 1 Ω

      G139-2 (REV) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. E270423C01

      *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

    Proceed to

    OK (for EA64)

    OK (for EA64F)

    OK (for EB61F)

    NG
    OK (for EA64)

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    Click here

    OK (for EA64F)

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    Click here

    OK (for EB61F)

    REPLACE BACK-UP LIGHT SWITCH ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR