REAR VIEW MONITOR SYSTEM (for Radio and Display Type) Display Signal Circuit between Radio and Display Assembly and Television Camera Assembly

DESCRIPTION

The display signal from the rear television camera assembly transmits to the radio and display receiver assembly.

WIRING DIAGRAM

A00ONY3E04
A00OJSUE01

INSPECTION PROCEDURE

PROCEDURE


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


    1. Disconnect the D123 radio and display receiver assembly connector.

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


      • *1: for Wagon

      • *2: for Sedan

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

      Standard Resistance
      for Wagon
      Tester Connection Condition Specified Condition
      D123-7 (CA+) - M4-4 (CB+) Always Below 1 Ω
      D123-8 (V+) - M4-2 (CV+) Always Below 1 Ω
      D123-15 (CGND) - M4-3 (CGND) Always Below 1 Ω
      D123-16 (V-) - M4-1 (CV-) Always Below 1 Ω
      D123-7 (CA+) - Body ground Always 10 kΩ or higher
      D123-8 (V+) - Body ground Always 10 kΩ or higher
      D123-15 (CGND) - Body ground Always 10 kΩ or higher
      D123-16 (V-) - Body ground Always 10 kΩ or higher
      for Sedan
      Tester Connection Condition Specified Condition
      D123-7 (CA+) - G7-4 (CB+) Always Below 1 Ω
      D123-8 (V+) - G7-2 (CV+) Always Below 1 Ω
      D123-15 (CGND) - G7-3 (CGND) Always Below 1 Ω
      D123-16 (V-) - G7-1 (CV-) Always Below 1 Ω
      D123-7 (CA+) - Body ground Always 10 kΩ or higher
      D123-8 (V+) - Body ground Always 10 kΩ or higher
      D123-15 (CGND) - Body ground Always 10 kΩ or higher
      D123-16 (V-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. A00OLHUE07
      Text in Illustration
      *a

      Component without harness connected

      (Radio and Display Receiver Assembly)

      Disconnect the D123 radio and display receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D123-16 (V-) - Body ground Always Below 1 Ω
      D123-15 (CGND) - Body ground Always Below 1 Ω

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  3. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. A00OIJ4E16
      Text in Illustration
      *A for Wagon
      *B for Sedan
      *a

      Front view of wire harness connector

      (to Rear Television Camera Assembly)

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


      • *1: for Wagon

      • *2: for Sedan

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

      Standard Voltage
      for Wagon
      Tester Connection Condition Specified Condition
      M4-4 (CB+) - M4-3 (CGND) Within 60 seconds after turning ignition switch to ACC 5.5 to 7.05 V
      for Sedan
      Tester Connection Condition Specified Condition
      G7-4 (CB+) - G7-3 (CGND) Within 60 seconds after turning ignition switch to ACC 5.5 to 7.05 V

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  4. CHECK REAR TELEVISION CAMERA ASSEMBLY


    1. Using an oscilloscope, check the waveform.

      A00OILME06
      Text in Illustration
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

      		 *b Waveform 1
      *c Waveform 2 *d Synchronization Signal
      *e Video Waveform - -

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the radio and display receiver assembly with the connector connected.

      Measurement Condition
      Item Content
      Terminal No. (Symbol) D123-8 (V+) - D123-16 (V-)
      Tool Setting 0.2 V/DIV., 50 μs/DIV.
      Condition

      • Waveform 1: Ignition switch ON, shift lever in R

      • Waveform 2: Ignition switch ON, shift lever in R, screen blacked out by covering camera lens
      OK
      Waveform is as shown in the 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 Wagon) B
      NG (for Sedan) C

    B

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    C

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    A

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