REAR VIEW MONITOR SYSTEM (w/ Navigation System) TERMINALS OF ECU


  1. REAR TELEVISION CAMERA ASSEMBLY

    A003SDVE20

    1. Disconnect the R12 connector from the rear television camera assembly.

    2. Measure the voltage of each terminal of the wire harness side connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      R12-3 (CGND) - Body ground BR - Body ground Ground Always Below 1 V
      R12-4 (CB+) - R12-3 (CGND) B - BR Power source

      Power switch on (READY)

      Reverse (R) selected

      		 5.5 to 7.05 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the R12 connector to the rear television camera assembly.

    4. Check for pulses between each terminal of the connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      R12-2 (CV+) - R12-1 (CV-) R - W Display signal

      Power switch on (READY)

      Reverse (R) selected

      Camera lens not covered, displaying an image

      Pulse generation

      (See waveform 1)

      Power switch on (READY)

      Reverse (R) selected

      Camera lens covered, blacking out screen

      Pulse generation

      (See waveform 2)

      Tech Tips

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

      If the result is not as specified, the rear television camera assembly may have a malfunction.

    5. A003RWJE13
      Text in Illustration
      *a Waveform 1 (camera lens not covered, displaying an image)
      *b Waveform 2 (camera lens covered, blacking out the screen)
      *c Synchronization Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):

      Tech Tips

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


      1. Waveform 1 (camera lens is not covered, displaying an image)

        Item Content
        Terminal No. (Symbol) R12-2 (CV+) - R12-1 (CV-)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition Power switch on (READY), reverse (R) selected

        Tech Tips

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

      2. Waveform 2 (camera lens is covered, blacking out the screen)

        Item Content
        Terminal No. (Symbol) R12-2 (CV+) - R12-1 (CV-)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition Power switch on (READY), reverse (R) selected

        Tech Tips

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

  2. NAVIGATION RECEIVER ASSEMBLY Click here