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


  1. REAR TELEVISION CAMERA ASSEMBLY


    1. Disconnect the V14 rear television camera assembly connector.

      B001M75E02

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      V14-6 (CB+) - Body ground B - Body ground 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 V14 rear television camera assembly connector.

    4. Measure the resistance and check for pulses at each terminal of the connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      V14-3 (CV+) - V14-2 (CV-) R - W Video signal

      Power switch on (READY)

      Reverse (R) selected

      Camera lens not covered, displaying an image

      Pulse generation

      (Refer to waveform 1)

      Power switch on (READY)

      Reverse (R) selected

      Camera lens covered, blacking out the screen

      Pulse generation

      (Refer to waveform 2)
      V14-5 (CGND) - Body ground W-B - Body ground Shield ground Always Below 1 Ω

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the inner rear view mirror assembly with the connector connected.

      If the result is not as specified, the rear television camera assembly may be malfunctioning.

    5. B001KO5E01
      Text in Illustration
      *a Waveform 1 (camera lens is not covered, displaying an image)
      *b Waveform 2 (camera lens is 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 inner rear view mirror assembly with the connector connected.


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

        Item Content
        Measurement terminal V14-3 (CV+) - V14-2 (CV-)
        Measurement setting 200 mV/DIV., 50 μs./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
        Measurement terminal V14-3 (CV+) - V14-2 (CV-)
        Measurement setting 200 mV/DIV., 50 μs./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. INNER REAR VIEW MIRROR ASSEMBLY


    1. Disconnect the T9 inner rear view mirror assembly connector.

      B001N44E02

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      T9-1 (IG) - Body ground BE - Body ground Power switch signal Power switch off Below 1 V
      Power switch on (IG) 11 to 14 V
      T9-2 (E) - Body ground W-B - Body ground Ground Always Below 1 V
      T9-3 (REV) - T9-2 (E) P - W-B Reverse signal

      Power switch on (READY)

      Shift state other than reverse (R) selected

      		 Below 1 V

      Power switch on (READY)

      Reverse (R) selected

      		 11 to 15.5 V
      T9-14 (CB+) - T9-2 (E) B - W-B Power supply to rear television camera assembly

      Power switch on (READY)

      Reverse (R) selected

      		 5.5 to 7.05 V
      T9-6 (CV-) - T9-2 (E) W - W-B Rear television camera assembly ground Always Below 1 V

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

    3. Reconnect the T9 inner rear view mirror assembly connector.

    4. Measure the resistance and check for pulses at each terminal of the connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      T9-7 (CV+) - T9-2 (E) R - W-B Video signal

      Power switch on (READY)

      Reverse (R) selected

      Camera lens not covered, displaying an image

      Pulse generation

      (Refer to waveform 1)

      Power switch on (READY)

      Reverse (R) selected

      Camera lens covered, blacking out the screen

      Pulse generation

      (Refer to waveform 2)
      T9-13 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 Ω

      If the result is not as specified, the rear television camera assembly may be malfunctioning.

    5. B001KO5E01
      Text in Illustration
      *a Waveform 1 (camera lens is not covered, displaying an image)
      *b Waveform 2 (camera lens is 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
        Measurement terminal T9-7 (CV+) - T9-2 (E)
        Measurement setting 200 mV/DIV., 50 μs./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
        Measurement terminal T9-7 (CV+) - T9-2 (E)
        Measurement setting 200 mV/DIV., 50 μs./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.