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 navigation ECU sub-assembly.

WIRING DIAGRAM

A01HSJGE01

INSPECTION PROCEDURE

Note


  • When "System initializing" is displayed on the navigation ECU sub-assembly 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.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)


    1. Disconnect the I66 connector from the navigation ECU sub-assembly.

    2. Disconnect the T6 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
      I66-7 (CA+) - T6-6 (CB+) Always Below 1 Ω
      I66-8 (V+) - T6-3 (CV+) Always Below 1 Ω
      I66-15 (CGND) - T6-5 (CGND) Always Below 1 Ω
      I66-16 (V-) - T6-2 (CV-) Always Below 1 Ω
      I66-7 (CA+) - Body ground Always 10 kΩ or higher
      I66-8 (V+) - Body ground Always 10 kΩ or higher
      I66-15 (CGND) - Body ground Always 10 kΩ or higher
      I66-16 (V-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01HVRIE03
      Text in Illustration
      *a

      Component with harness connected

      (Navigation ECU sub-assembly)

      Reconnect the I66 connector to the navigation ECU sub-assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I66-15 (CGND) - Body ground Always Below 1 Ω
      I66-16 (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
      I66-7 (CA+) - I66-15 (CGND)

      Power switch on (IG)

      Shift lever in R

      		 5.5 to 7.05 V

    NG

    REPLACE NAVIGATION ECU SUB-ASSEMBLY Click here

    OK

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


    1. Reconnect the T6 connector to the rear television camera assembly.

    2. A01HUOTE01
      Text in Illustration
      *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

      Reconnect the I66 connector to the navigation ECU sub-assembly.

    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 navigation ECU sub-assembly with the connector connected.

      OK
      Waveform is as shown in the illustration.
      Item Content
      Terminal No. (Symbol) I66-8 (V+) - I64-7 (GND1)
      Tool Setting 200 mV/DIV., 50 μsec./DIV.
      Condition Power 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

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