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

DESCRIPTION

The video signal from the television camera assembly is transmitted to the navigation ECU sub-assembly.

WIRING DIAGRAM

A00YVIHE09

CAUTION / NOTICE / HINT

Note


  • When "System initializing" is displayed on the navigation ECU sub-assembly after disconnecting the cable 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 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 ignition switch to ON 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 television camera assembly lens is scratched.

  • The 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 HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - TELEVISION CAMERA ASSEMBLY)


    1. Disconnect the G49 navigation ECU sub-assembly connector.

    2. Disconnect the U6 television camera assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G49-7 (CA+) - U6-6 (CB+) Always Below 1 Ω
      G49-8 (V+) - U6-3 (CV+) Always Below 1 Ω
      G49-16 (V-) - U6-2 (CV-) Always Below 1 Ω
      G49-15 (CGND) - U6-5 (CGND) Always Below 1 Ω
      G49-7 (CA+) - Body ground Always 10 kΩ or higher
      G49-8 (V+) - Body ground Always 10 kΩ or higher
      G49-16 (V-) - Body ground Always 10 kΩ or higher
      G49-15 (CGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK NAVIGATION ECU SUB-ASSEMBLY (V-, CGND, CA+)


    1. A00YSRLC15
      *a

      Component with harness connected

      (Navigation ECU Sub-assembly)

      Reconnect the G49 navigation ECU sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G49-15 (CGND) - Body ground Always Below 1 Ω
      G49-16 (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
      G49-7 (CA+) - G49-15 (CGND) Ignition switch ON, shift lever in R 5.5 to 7.05 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NAVIGATION ECU SUB-ASSEMBLY Click here

    OK

  3. CHECK NAVIGATION ECU SUB-ASSEMBLY (V+, GND1)


    1. Reconnect the U6 television camera assembly connector.

      A00YWR7C10
      *a

      Component with harness connected

      (Navigation ECU Sub-assembly)

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

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

      Tech Tips

      A waterproof connector is used for the television camera assembly. Therefore, inspect the waveform at the navigation ECU sub-assembly with the connector connected.

      Item Content
      Terminal No. (Symbol) G49-8 (V+) - G138-7 (GND1)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Ignition switch ON, shift lever in R

      Tech Tips

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

      Result
      Proceed to
      Waveform is as shown in the illustration
      Waveform is not as shown in the illustration

    Waveform is as shown in the illustration

    REPLACE NAVIGATION ECU SUB-ASSEMBLY Click here

    Waveform is not as shown in the illustration

    REPLACE TELEVISION CAMERA ASSEMBLY Click here