REAR VIEW MONITOR SYSTEM 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.


WIRING DIAGRAM

A00YUNOE01
A00YUNOE02

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. A00YR2K

      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

      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.

      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-ASSEMBLY Click here

    NG (w/o Navigation System)

  2. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. A00YRSOC09
      *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. A00YRSOC10
      *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. A00YX00C01
      *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. A00YX00C01
      *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. A00YRVWC02
      *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. A00YRVWC01
      *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