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

B001EZWE02

CAUTION / NOTICE / HINT

Note


  • When "System initializing" is displayed on the parking assist ECU after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point Click here.

  • Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as wide view front monitor system may be needed Click here.

Tech Tips

Images may be unclear even in normal conditions if:


  • Electrical devices are used in the cabin (noise may occur in the image).

  • The camera lens is frosted over (the image immediately after turning the engine switch on (IG) may be blurred or darker than normal).

  • The camera lens is dirty with snow, mud, etc.

  • A strong beam of light, such as a sunbeam or headlight, hits the camera.

  • It is too dark around the camera (at night etc.).

  • The ambient temperature around the camera is either too high or too low.

  • The vehicle is tilted at a steep angle.

  • The camera lens is damaged by plying stones.

  • The front television camera assembly lens is scratched.

  • The front television camera assembly lens has drops of water on it or the humidity is high.

  • When the camera is used under fluorescent lights, sodium lights, or mercury lights etc., the lights and the illuminated area may appear to flicker.

PROCEDURE


  1. CHECK SIDE MONITOR SYSTEM


    1. Check if the same malfunction occurs when the side monitor screen is displayed.

      Result
      Result Proceed to
      Malfunction occurs when front monitor screen is displayed (side monitor screen is normal). A
      Malfunction occurs when front assist monitor screen and side monitor screen are displayed. B

    B

    CHECK HARNESS AND CONNECTOR Click here

    A

  2. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT TELEVISION CAMERA ASSEMBLY AND BODY GROUND)


    1. Disconnect the I6 and I7 parking assist ECU connectors.

    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
      I7-36 (BCV-) - A52-4 (BCV-) Always Below 1 Ω
      I7-12 (BCV+) - A52-2 (BCV+) Always Below 1 Ω
      I7-35 (BGND) - A52-3 (BGND) Always Below 1 Ω
      I7-11 (BCB+) - A52-1 (BCB+) Always Below 1 Ω
      I7-36 (BCV-) - Body ground Always 10 kΩ or higher
      I7-12 (BCV+) - Body ground Always 10 kΩ or higher
      I7-35 (BGND) - Body ground Always 10 kΩ or higher
      I7-11 (BCB+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK PARKING ASSIST ECU (BCB+, BGND)


    1. B001EKGE04
      Text in Illustration
      *a

      Component with harness connected

      (Parking Assist ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I7-35 (BGND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I7-11 (BCB+) - I7-35 (BGND) Engine switch on (IG), wide view front and side monitor switch on 5.5 to 7.05 V
      Result
      Proceed to Result
      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 (BCV+, BGND)


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

      B001CF3E06
      Text in Illustration
      *a

      Component with harness connected

      (Parking Assist ECU)

      		 *b Waveform A
      *c Waveform B *d Synchronized Signal
      *e Video Waveform - -

      Tech Tips


      • A waterproof connector is used for the front television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connector connected.

      • The video waveform changes according to the image sent by the front television camera assembly.

      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) I7-12 (BCV+) - I7-35 (BGND)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition

      • Waveform A: Engine switch on (IG), wide view front and side monitor switch on and camera lens is not covered, displaying an image

      • Waveform B: Engine switch on (IG), wide view front and side monitor switch on and camera lens is covered, blacking out the screen

    NG

    REPLACE FRONT TELEVISION CAMERA ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR


    1. Disconnect the I7 parking assist ECU connector.

    2. Disconnect the H50 navigation receiver assembly*1 or radio and display receiver assembly*2 connectors.


      • *1: for Navigation Receiver Type

      • *2: for Radio and Display Type

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I7-16 (NS+) - H50-12 (V+) Always Below 1 Ω
      I7-17 (NS-) - H50-24 (V-) Always Below 1 Ω
      I7-18 (NSG) - H50-23 (CGND) Always Below 1 Ω
      I7-16 (NS+) - Body ground Always 10 kΩ or higher
      I7-17 (NS-) - Body ground Always 10 kΩ or higher
      I7-18 (NSG) - Body ground Always Below 1 kΩ
      Result
      Result Proceed to
      OK (for Navigation Receiver Type) A
      OK (for Radio and Display Type) B
      NG C

    B

    CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  6. CHECK NAVIGATION RECEIVER ASSEMBLY


    1. Replace the navigation receiver assembly with a normally functioning one Click here.

    2. Check if the same malfunction recurs when the front monitor and side monitor screens are displayed.

      OK
      Malfunction does not reoccur (returns to normal).
      Result
      Proceed to Result
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    END (NAVIGATION RECEIVER ASSEMBLY IS DEFECTIVE)

    B

    REPLACE PARKING ASSIST ECU Click here

    C

    REPLACE PARKING ASSIST ECU Click here

  7. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. Replace the radio and display receiver assembly with a normally functioning one Click here.

    2. Check if the same malfunction recurs when the front monitor and side monitor screens are displayed.

      OK
      Malfunction does not reoccur (returns to normal).
      Result
      Proceed to Result
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    END (RADIO AND DISPLAY RECEIVER ASSEMBLY IS DEFECTIVE)

    B

    REPLACE PARKING ASSIST ECU Click here

    C

    REPLACE PARKING ASSIST ECU Click here