REAR VIEW MONITOR SYSTEM (except Inner Rear View Mirror Type) TERMINALS OF ECU


  1. REAR TELEVISION CAMERA ASSEMBLY

    A019JSME14

    1. Disconnect the Y14 rear television camera assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      Y14-4 (CB+) - Body ground B - Body ground Power source Within 60 seconds of turning the engine switch on (ACC) 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 Y14 rear television camera assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      Y14-2 (CV+) - Y14-1 (CV-) R - W Video signal

      Engine switch on (IG)

      Shift lever in R

      Camera lens not covered, displaying an image

      Pulse generation

      (See waveform 1)

      Engine switch on (IG)

      Shift lever in R

      Camera lens covered, blacking out screen

      Pulse generation

      (See waveform 2)

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

    5. A019MQWE22
      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):


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

        Item Content
        Terminal No. (Symbol) Y14-2 (CV+) - Y14-1 (CV-)
        Tool Setting 200 mV/DIV., 50 μs/DIV.
        Condition Engine switch on (IG), shift lever in R

        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) Y14-2 (CV+) - Y14-1 (CV-)
        Tool Setting 200 mV/DIV., 50 μs/DIV.
        Condition Engine switch on (IG), shift lever in R

        Tech Tips

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

  2. RADIO RECEIVER ASSEMBLY Click here