PARKING ASSIST MONITOR SYSTEM TERMINALS OF ECU


  1. REAR TELEVISION CAMERA ASSEMBLY


    1. Disconnect the m3 rear television camera assembly connector.

      B004L17N03

    2. Measure the voltage on the wire harness side connector according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      m3-6 (CB+) - Body ground GR - Body ground Power source 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 m3 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
      m3-3 (CV+) - m3-2 (CV-) B - G Video signal

      Engine switch on (IG)

      Shift lever in R

      Camera lens not covered, displaying image

      Pulse generation

      (Refer to waveform 1)

      Engine switch on (IG)

      Shift lever in R

      Camera lens covered, blacking out screen

      Pulse generation

      (Refer to waveform 2)
      m3-5 (CGND) - Body ground BR - Body ground Camera ground Always Below 1 V

      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.

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

    5. B0071BBC04
      *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 radio and display receiver assembly with the connector connected.


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

        Item Content
        Measurement terminal m3-3 (CV+) - m3-2 (CV-)
        Measurement 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.

        • The video waveform is constantly output when the engine switch is on (ACC).

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

        Item Content
        Measurement terminal m3-3 (CV+) - m3-2 (CV-)
        Measurement 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.

        • The video waveform is constantly output when the engine switch is on (ACC).

  2. RADIO AND DISPLAY RECEIVER ASSEMBLY

    B004JQLE02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    K2-26 (CSLD) - Body ground Shield - Body ground Shield ground Always Below 1 V
    K2-27 (CGND) - Body ground G - Body ground Camera ground Always Below 1 V
    K2-28 (V+) - K3-1 (GND1) B - BR Video signal

    Engine switch on (IG)

    Shift lever in R

    Camera lens not covered, displaying image

    Pulse generation

    (Refer to waveform 1)

    Engine switch on (IG)

    Shift lever in R

    Camera lens covered, blacking out screen

    Pulse generation

    (Refer to waveform 2)
    K2-29 (V-) - K3-1 (GND1) W - BR Ground Always Below 1 V
    K2-30 (CA+) - K3-1 (GND1) R - BR Rear television camera assembly power supply Engine switch on (ACC) 5.5 to 7.05 V

    1. Reference (Oscilloscope waveform):


      1. B0071BBC04
        *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

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

        Item Content
        Measurement terminal K2-28 (V+) - K3-1 (GND1)
        Measurement 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.

        • The video waveform is constantly output when the engine switch is on (ACC).

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

        Item Content
        Measurement terminal K2-28 (V+) - K3-1 (GND1)
        Measurement 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.

        • The video waveform is constantly output when the engine switch is on (ACC).