PARKING ASSIST MONITOR SYSTEM Image from Camera for Parking Assist Monitor is Abnormal

DESCRIPTION

The display signal from the rear television camera assembly is transmitted to the display and navigation module display via the parking assist ECU.

WIRING DIAGRAM

A0162G7E02

INSPECTION PROCEDURE

Note


  • When "System initializing" message is displayed on the navigation display after the battery terminal is disconnected, 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 the parking assist monitor system may be needed Click here.

Tech Tips

Images are difficult to discern even in normal conditions if:


  • Noise may occur in the image depending on electrical devices used in the cabin.

  • Noise may occur in the image if accessories that generate radio waves have been installed.

  • The camera screen 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 surroundings of the camera are too bright. (When a strong light, such as a sunbeam reflected off the vehicle body, hits the camera, the image may be blurred. This is called the "SMEAR" phenomenon, peculiar to the CCD camera.)

PROCEDURE


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


    1. Disconnect the J92 connector from the parking assist ECU.

    2. Disconnect the Q43 connector from the rear television camera assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J92-19 (CV-) - Q43-1 (CV-) Always Below 1 Ω
      J92-20 (CV+) - Q43-2 (CV+) Always Below 1 Ω
      J92-39 (CGND) - Q43-3 (CGND) Always Below 1 Ω
      J92-40 (CB+) - Q43-4 (CB+) Always Below 1 Ω
      J92-19 (CV-) - Body ground Always 10 kΩ or higher
      J92-20 (CV+) - Body ground Always 10 kΩ or higher
      J92-39 (CGND) - Body ground Always 10 kΩ or higher
      J92-40 (CB+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK PARKING ASSIST ECU (CV-, CGND)


    1. A016028E08
      Text in Illustration
      *1

      Component with harness connected

      (Parking Assist ECU)

      Reconnect the J92 connector to the parking assist ECU.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J92-19 (CV-) - Body ground Always Below 1 Ω
      J92-39 (CGND) - Body ground Always Below 1 Ω

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

  3. CHECK REAR TELEVISION CAMERA ASSEMBLY (CB+, CGND)


    1. Disconnect the Q43 connector from the rear television camera assembly.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Q43-3 (CGND) - Q43-4 (CB+)

      Engine switch on (IG)

      Shift lever in R

      		 5.5 to 7.0 V

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

  4. CHECK PARKING ASSIST ECU (CV+, GND1)


    1. Reconnect the Q43 connector to the rear television camera assembly.

    2. A01601RE03

      Reconnect the J92 connector to the parking assist ECU.

    3. A016195E02
      Text in Illustration
      *1

      Component with harness connected

      (Parking Assist ECU)
      *2 Waveform 1 (camera lens not covered, displaying an image)
      *3 Waveform 2 (camera lens covered, blacking out the screen)
      *4 Synchronization Signal
      *5 Video Waveform

      Check the waveform of the rear television camera assembly using an oscilloscope.

      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) J92-20 (CV+) - J93-8 (GND1)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Engine switch on ((IG), shift lever in R

      Tech Tips

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


    NG

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    OK

  5. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Chassis / Parking Assist Monitor System / Data List.

    5. Check the Data List for proper functioning of the following items.

      Parking Assist Monitor System
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      AISIC Output Status Output condition of camera display/OK or NG

      OK: Output condition of camera display is normal

      NG: Output condition of camera display is abnormal

      		 -

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

  6. CHECK DIGITAL COMMUNICATION CABLE CONNECTORS


    1. Check the digital communication cable connectors.


      1. Check the digital communication cable connectors between the parking assist ECU and display and navigation module display for any connection problems Click here.

    2. Check if the same malfunction recurs when the parking assist monitor screen is displayed.

      Result
      Result Proceed to
      Malfunction does not reoccur (returns to normal) A
      Malfunction reoccurs B

    B

    REPLACE WIRE HARNESS (DIGITAL COMMUNICATION CABLE) Click here

    A

    END

  7. REPLACE WIRE HARNESS (DIGITAL COMMUNICATION CABLE)


    1. Replace the digital communication cable between the parking assist ECU and display and navigation module display with a new one.

    2. Check if the same malfunction recurs when the parking assist monitor screen is displayed.

      Result
      Result Proceed to
      Malfunction does not reoccur (returns to normal) A
      Malfunction reoccurs B

    B

    REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Click here

    A

    END

  8. REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY


    1. Replace the display and navigation module display with a new or known good one Click here.

    2. Check if the same malfunction recurs when the parking assist monitor screen is displayed.

      Result
      Result Proceed to
      Malfunction does not reoccur A
      Malfunction reoccurs B

    B

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    A

    END