REAR VIEW MONITOR SYSTEM(for Radio and Display Type) Image from Camera for Rear View Monitor is Abnormal

DESCRIPTION

This is the display signal circuit between the radio and display receiver assembly and the rear television camera assembly.

WIRING DIAGRAM

A004PA8E08
for Sedan
*a Shielded
*b Rear Television Camera Assembly
*c Radio and Display Receiver Assembly
A004RBIE18
for Wagon
*a Shielded
*b Rear Television Camera Assembly
*c Radio and Display Receiver Assembly

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)


    1. Disconnect the D134 radio and display receiver assembly connector.

    2. Disconnect the G7*1 or M4*2 rear television camera assembly connector.


      • *1: for Sedan

      • *2: for Wagon

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

      Standard Resistance
      for Sedan
      Tester Connection Condition Specified Condition
      D134-11 (CA+) - G7-4 (CB+) Always Below 1 Ω
      D134-12 (V+) - G7-2 (CV+) Always Below 1 Ω
      D134-23 (CGND) - G7-3 (CGND) Always Below 1 Ω
      D134-24 (V-) - G7-1 (CV-) Always Below 1 Ω
      D134-11 (CA+) - Body ground Always 10 kΩ or higher
      D134-12 (V+) - Body ground Always 10 kΩ or higher
      D134-23 (CGND) - Body ground Always 10 kΩ or higher
      D134-24 (V-) - Body ground Always 10 kΩ or higher
      for Wagon
      Tester Connection Condition Specified Condition
      D134-11 (CA+) - M4-4 (CB+) Always Below 1 Ω
      D134-12 (V+) - M4-2 (CV+) Always Below 1 Ω
      D134-23 (CGND) - M4-3 (CGND) Always Below 1 Ω
      D134-24 (V-) - M4-1 (CV-) Always Below 1 Ω
      D134-11 (CA+) - Body ground Always 10 kΩ or higher
      D134-12 (V+) - Body ground Always 10 kΩ or higher
      D134-23 (CGND) - Body ground Always 10 kΩ or higher
      D134-24 (V-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. A004U85E02
      Text in Illustration
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D134-23 (CGND) - Body ground Always Below 1 Ω
      D134-24 (V-) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D134-11 (CA+) - Body ground Ignition switch ON 5.5 to 7.05 V

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  3. CHECK REAR TELEVISION CAMERA ASSEMBLY


    1. Using an oscilloscope, check the waveform.

      A004MULE02
      Text in Illustration
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

      		 *b Waveform 1
      *c Waveform 2 *d Synchronized Signal
      *e Video Waveform - -
      Measurement Condition
      Item Content
      Tester Connection D134-12 (V+) - D134-23 (CGND)
      Tool Setting 200 mV/DIV., 50 μs/DIV.
      Condition

      • Waveform 1: Ignition switch ON, camera lens not covered, displaying an image

      • Waveform 2: Ignition switch ON, camera lens covered, blacking out screen
      OK
      Waveform is as shown in illustration.

      Tech Tips

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

      Result
      Result Proceed to
      OK A
      NG (for Sedan) B
      NG (for Wagon) C

    A

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

    B

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    C

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here