WIDE VIEW FRONT MONITOR SYSTEM Image from Camera for Wide View Front Monitor is Abnormal

DESCRIPTION

The display signal of the front television camera assembly is transmitted to the parking assist ECU.

WIRING DIAGRAM

A00L10LE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT TELEVISION CAMERA)


    1. Disconnect the I2 parking assist ECU connector.

    2. Disconnect the A52 front television camera assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I2-24 (BCV+) - A52-2 (BCV+) Always Below 1 Ω
      I2-23 (BCV-) - A52-4 (BCV-) Always Below 1 Ω
      I2-26 (BCB+) - A52-1 (BCB+) Always Below 1 Ω
      I2-25 (BGND) - A52-3 (BGND) Always Below 1 Ω
      I2-24 (BCV+) - Body ground Always 10 kΩ or higher
      I2-23 (BCV-) - Body ground Always 10 kΩ or higher
      I2-26 (BGND) - Body ground Always 10 kΩ or higher
      I2-25 (BCB+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK PARKING ASSIST ECU


    1. A00KTSIE02
      Text in Illustration
      *a

      Component without harness connected

      (Parking Assist ECU)

      Disconnect the I2 parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I2-23 (BCV-) - Body ground Always Below 1 Ω
      I2-25 (BGND) - Body ground Always Below 1 Ω
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE PARKING ASSIST ECU Click here

    C

    REPLACE PARKING ASSIST ECU Click here

    A

  3. CHECK PARKING ASSIST ECU


    1. A00KSLGE06
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Front Television Camera Assembly)

      Disconnect the A52 front television camera assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A52-1 (BCB+) - A52-3 (BGND) Wide view front monitor display screen displayed 5.8 to 7.05 V
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE PARKING ASSIST ECU Click here

    C

    REPLACE PARKING ASSIST ECU Click here

    A

  4. CHECK FRONT TELEVISION CAMERA ASSEMBLY


    1. Using an oscilloscope, check the waveform.

      A00KXO3E05
      Text in Illustration
      *a

      Component with harness connected

      (Parking Assist ECU)

      		 - -
      Measurement Condition
      Item Content
      Terminal No. (Symbol) I2-24 (BCV+) - I2-23 (BCV-)
      Tool Setting

      • 0.2 V/DIV., 20 ms/DIV.*1

      • 0.2 V/DIV., 50 ms/DIV.*2
      Condition

      • Wide view front monitor display screen displayed*1

      • Camera lens covered to make image black while wide view front monitor display screen displayed*2
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    B

    REPLACE PARKING ASSIST ECU Click here

    C

    REPLACE FRONT TELEVISION CAMERA ASSEMBLY Click here

    A

    REPLACE PARKING ASSIST ECU Click here