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

DTC Code DTC Name
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

E198739E02

PROCEDURE

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

    1. Disconnect the I2 parking assist ECU connector.

    2. Disconnect the A41 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+) - A41-2 (BCV+)

      Always

      Below 1 Ω

      I2-23 (BCV-) - A41-4 (BCV-)

      Always

      Below 1 Ω

      I2-26 (BCB+) - A41-1 (BCB+)

      Always

      Below 1 Ω

      I2-25 (BGND) - A41-3 (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

      I2-25 (BGND) - Body ground

      Always

      10 kΩ or higher

      I2-26 (BCB+) - Body ground

      Always

      10 kΩ or higher

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK PARKING ASSIST ECU

    1. E236916C04

      *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

      OK

      NG
    NG

    REPLACE PARKING ASSIST ECU

    Click here

    OK

  3. CHECK PARKING ASSIST ECU

    1. E227664C04

      *a

      Front view of wire harness connector

      (to Front Television Camera Assembly)

      Disconnect the A41 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

      A41-1 (BCB+) - A41-3 (BGND)

      Wide view front monitor display screen displayed

      5.8 to 7.05 V

      Result

      Result

      OK

      NG
    NG

    REPLACE PARKING ASSIST ECU

    Click here

    OK

  4. CHECK FRONT TELEVISION CAMERA ASSEMBLY

    1. Using an oscilloscope, check the waveform.

      E167080C04

      *a

      Component with harness connected

      (Parking Assist ECU)

      -

      -
      Table 1. Measurement Condition

      Item

      Content

      Terminal No. (Symbol)

      I2-24 (BCV+) - I2-23 (BCV-)

      Tool Setting

      0.2 V/DIV., 50 μs/DIV.

      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

      OK

      NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

    REPLACE FRONT TELEVISION CAMERA ASSEMBLY

    Click here