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

DESCRIPTION

The video signal from the rear television camera assembly is transmitted to the multi-media module receiver assembly.

WIRING DIAGRAM

A003YWOE03

INSPECTION PROCEDURE

Note


  • When "System initializing" is displayed on the multi-display after disconnecting the cable from the negative (-) auxiliary 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 the parking assist 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).

  • Accessories that generate radio waves have been installed (noise may occur in the image).

  • The outer mirror switch assembly is operated (noise may occur in the image).

  • The camera lens 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 rear television camera assembly lens is scratched.

  • The rear 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.

  • The ambient light surrounding 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 HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)


    1. Disconnect the H147 multi-media module receiver assembly connector.

    2. Disconnect the V8 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
      H147-39 (CA+) - V8-4 (CB+) Always Below 1 Ω
      H147-18 (V+) - V8-2 (CV+) Always Below 1 Ω
      H147-19 (V-) - V8-1 (CV-) Always Below 1 Ω
      H147-40 (CGND) - V8-3 (CGND) Always Below 1 Ω
      H147-39 (CA+) - Body ground Always 10 kΩ or higher
      H147-18 (V+) - Body ground Always 10 kΩ or higher
      H147-19 (V-) - Body ground Always 10 kΩ or higher
      H147-40 (CGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY (V-, CGND, CA+)


    1. A003VU8E44
      Text in Illustration
      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

      Reconnect the H147 multi-media module receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H147-40 (CGND) - Body ground Always Below 1 Ω
      H147-19 (V-) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H147-39 (CA+) - H147-40 (CGND)

      Power switch on (IG)

      Reverse (R) selected

      		 5.5 to 7.05 V

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

  3. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY (V+, GND1)


    1. A003VU8E45
      Text in Illustration
      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

      Reconnect the V8 rear television camera assembly connector.

    2. A003ZLFE35
      Text in Illustration
      *a Waveform 1 (camera lens is not covered, displaying an image)
      *b Waveform 2 (camera lens is covered, blacking out the screen)
      *c Synchronized Signal
      *d Video Waveform

      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 multi-media module receiver assembly with the connector connected.

      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) H147-18 (V+) - H147-12 (GND1)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Power switch on (IG), reverse (R) selected

      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

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