PARKING ASSIST MONITOR SYSTEM TERMINALS OF ECU


  1. REAR TELEVISION CAMERA ASSEMBLY


    1. Disconnect the R4 rear television camera assembly connector.

      A003NB6E29

    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
      R4-6 (CB+) - Body ground G - Body ground Power source Power 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 R4 rear television camera assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      R4-3 (CV+) - R4-2 (CV-) R - B Video signal

      Power switch on (IG)

      Reverse (R) selected

      Camera lens not covered, displaying image

      Pulse generation

      (Refer to waveform 1)

      Power switch on (IG)

      Reverse (R) selected

      Camera lens covered, blacking out screen

      Pulse generation

      (Refer to waveform 2)
      R4-5 (CGND) - Body ground RB - Body ground Shield ground Always Below 1 V

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the navigation receiver assembly*1 or radio and display receiver assembly*2 with the connector connected.


      • *1: for Navigation Receiver Type

      • *2: for Radio and Display Type

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

    5. A003MP3C04
      *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 navigation receiver assembly*1 or radio and display receiver assembly*2 with the connector connected.


      • *1: for Navigation Receiver Type

      • *2: for Radio and Display Receiver Type


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

        Item Content
        Measurement terminal R4-3 (CV+) - R4-2 (CV-)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power switch on (IG), reverse (R) selected

        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 power switch is on (ACC).

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

        Item Content
        Measurement terminal R4-3 (CV+) - R4-2 (CV-)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power switch on (IG), reverse (R) selected

        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 power switch is on (ACC).

  2. NAVIGATION RECEIVER ASSEMBLY (for Navigation Receiver Type)


    1. Measure the voltage and check for pulses at each terminal of the connector.

      A003JZ4N04
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
      I34-7 (GND1) - Body ground LA-BR - Body ground Ground Always Below 1 V
      I36-11 (CA+) - I34-7 (GND1) B - LA-BR Rear television camera assembly power supply Power switch on (ACC) 5.5 to 7.05 V
      I36-12 (V+) - I34-7 (GND1) R - LA-BR Video signal

      Power switch on (IG)

      Reverse (R) selected

      Camera lens not covered, displaying an image

      Pulse generation

      (Refer to waveform 1)

      Power switch on (IG)

      Reverse (R) selected

      Camera lens covered, blacking out the screen

      Pulse generation

      (Refer to waveform 2)
      I36-23 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
      I36-24 (V-) - I34-7 (GND1) W - LA-BR Ground Always Below 1 V

      If the result is not as specified, the radio and display receiver assembly may be malfunctioning.

    2. A003MP3C01
      *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 I36-12 (V+) - I34-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power switch on (IG), reverse (R) selected

        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 power switch is on (ACC).

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

        Item Content
        Measurement terminal I36-12 (V+) - I34-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power switch on (IG), reverse (R) selected

        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 power switch is on (ACC).

  3. RADIO AND DISPLAY RECEIVER ASSEMBLY (for Radio and Display Receiver Type)


    1. Measure the voltage and check for pulses at each terminal of the connector.

      A003JZ4E04
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
      I97-7 (GND1) - Body ground LA-BR - Body ground Ground Always Below 1 V
      I99-11 (CA+) - I97-7 (GND1) B - LA-BR Rear television camera assembly power supply Power switch on (ACC) 5.5 to 7.05 V
      I99-12 (V+) - I97-7 (GND1) R - LA-BR Video signal

      Power switch on (IG)

      Reverse (R) selected

      Camera lens not covered, displaying an image

      Pulse generation

      (Refer to waveform 1)

      Power switch on (IG)

      Reverse (R) selected

      Camera lens covered, blacking out the screen

      Pulse generation

      (Refer to waveform 2)
      I99-23 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
      I99-24 (V-) - I97-7 (GND1) W - LA-BR Ground Always Below 1 V

      If the result is not as specified, the radio and display receiver assembly may be malfunctioning.

    2. A003MP3C01
      *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 I99-12 (V+) - I97-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power switch on (IG), reverse (R) selected

        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 power switch is on (ACC).

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

        Item Content
        Measurement terminal I99-12 (V+) - I97-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power switch on (IG), reverse (R) selected

        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 power switch is on (ACC).