PARKING ASSIST MONITOR SYSTEM (w/ Side 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 multi-display assembly via the parking assist ECU.

WIRING DIAGRAM

A01NNCQE03

INSPECTION PROCEDURE

Note


  • When "System initializing" is displayed on the multi-display assembly after the auxiliary battery terminal has been 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 can be difficult to discern even in normal conditions. For example:


  • 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 power 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 ambience of the camera is 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, particular to the CCD camera.)

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 parking assist monitor screen is displayed (side monitor screen is normal). A
      Malfunction occurs when parking assist monitor screen and side monitor screen are displayed B

    B

    GO TO SIDE MONITOR SYSTEM Click here

    A

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


    1. Disconnect the F110 and F111 parking assist ECU connectors.

    2. Disconnect the Y14 rear television camera assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F111-38 (CV-) - Y14-1 (CV-) Always Below 1 Ω
      F111-14 (CB+) - Y14-4 (CB+) Always Below 1 Ω
      F111-15 (CV+) - Y14-2 (CV+) Always Below 1 Ω
      F110-4 (GND1) - Body ground Always Below 1 Ω
      F111-38 (CV-) - Body ground Always 10 kΩ or higher
      F111-14 (CB+) - Body ground Always 10 kΩ or higher
      F111-37 (CGND) - Body ground Always 10 kΩ or higher
      F111-15 (CV+) - Body ground Always 10 kΩ or higher
      F111-14 (CB+) - F111-37 (CGND) Always 10 kΩ or higher
      F111-15 (CV+) - F111-38 (CV-) Always 10 kΩ or higher
      F111-15 (CV+) - F111-14 (CB+) Always 10 kΩ or higher
      F111-15 (CV+) - F111-37 (CGND) Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01NLW0E05
      Text in Illustration
      *a

      Component with harness connected

      (Parking Assist ECU)

      Reconnect the F111 parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F111-38 (CV-) - Body ground Always Below 1 Ω
      F111-37 (CGND) - Body ground Always Below 1 Ω

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

  4. INSPECT PARKING ASSIST ECU (REAR TELEVISION CAMERA POWER SOURCE)


    1. Disconnect the Y14 rear television camera assembly connector.

    2. A01NN8EE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Rear Television Camera Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Y14-4 (CB+) - Body ground Power switch on (IG), shift lever is in R 5.8 to 7.0 V

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

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


    1. Reconnect the Y14 rear television camera assembly connector.

    2. A01NKEQE05
      Text in Illustration
      *a

      Component with harness connected

      (Parking Assist ECU)
      *b Waveform 1 (camera lens not covered, displaying an image)
      *c Waveform 2 (camera lens covered, blacking out the screen)
      *d Synchronization Signal
      *e Video Waveform

      Reconnect the F110 and F111 parking assist ECU connectors.

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

      Tech Tips

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

      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) F111-15 (CV+) - F110-4 (GND1)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Power switch is on (IG), shift lever is 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

    REPLACE PARKING ASSIST ECU Click here