PARKING ASSIST MONITOR SYSTEM(for Camera built-in ECU) TERMINALS OF ECU


  1. CHECK TELEVISION CAMERA ASSEMBLY


    1. A01V9PUN01

      Disconnect the U22 television camera assembly.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      U22-6 (CB+) - Body ground B - Body ground Power source Ignition switch ACC 5.5 to 7.05 V
      U22-5 (CGND) - Body ground BR - Body ground Ground Always Below 1 Ω

    3. Reconnect the U22 television camera assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      U22-3 (CV+) - U22-2 (CV-) W - R Video signal Ignition switch ON, camera lens not covered, displaying an image Pulse generation (See waveform 1)
      Ignition switch ON, camera lens covered, blacking out screen Pulse generation (See waveform 2)

      Tech Tips

      A waterproof connector is used for the television camera assembly. Therefore, inspect the waveform at the navigation receiver assembly*1 or radio and display receiver assembly*2 with the connector connected. If the result is not as specified, the television camera assembly may have a malfunction.


      • *1: for Navigation Receiver Type

      • *2: for Radio and Display Type

    5. A01V7ZQC03
      *a Waveform 1
      *b Waveform 2
      *c Synchronized Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):

      Tech Tips

      A waterproof connector is used for the 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


      1. Waveform 1

        Item Content
        Terminal No. (Symbol) U22-3 (CV+) - U22-5 (CGND)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition Ignition switch ON, camera lens not covered, displaying an image

        Tech Tips

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

      2. Waveform 2

        Item Content
        Terminal No. (Symbol) U22-3 (CV+) - U22-5 (CGND)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition Ignition switch ON, camera lens covered, blacking out screen

        Tech Tips

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

  2. CHECK NAVIGATION RECEIVER ASSEMBLY (for Navigation Receiver Type)

    A01V8NFN01

    1. Check for resistance, voltage and waveform between each terminal of the connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G139-2 (REV) - G137-7 (GND1) BE - BR Reverse signal

      See "Vehicle Signal Check Mode" in Operation Check

      Click here

      		-
      G158-11 (CA+) - G158-23 (CGND) B - Shielded Television camera assembly power supply Ignition switch ACC 5.5 to 7.05 V
      G158-12 (V+) - G158-23 (CGND) W - Shielded Video signal Ignition switch ON, camera lens not covered, displaying an image Pulse generation (See waveform 1)
      Ignition switch ON, camera lens covered, blacking out screen Pulse generation (See waveform 2)
      G158-24 (V-) - G158-23 (CGND) R - Shielded Ground Always Below 1 Ω

      Tech Tips

      A waterproof connector is used for the television camera assembly. Therefore, inspect the waveform at the navigation receiver assembly with the connector connected. If the result is not as specified, the television camera assembly may have a malfunction.

    2. A01V7ZQC03
      *a Waveform 1
      *b Waveform 2
      *c Synchronized Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):

      Tech Tips

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


      1. Waveform

        Item Content
        Terminal No. (Symbol) G158-12 (V+) - G158-23 (CGND)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition

        Waveform 1: Ignition switch ON, camera lens not covered, displaying an image

        Waveform 2: Ignition switch ON, camera lens covered, blacking out the screen

        Tech Tips

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

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

    A01V8NFN02

    1. Check for resistance, voltage and waveform between each terminal of the connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G143-2 (REV) - G141-7 (GND1) BE - BR Reverse signal

      See "Vehicle Signal Check Mode" in Operation Check

      Click here

      		-
      G159-11 (CA+) - G159-23 (CGND) B - Shielded Television camera assembly power supply Ignition switch ACC 5.5 to 7.05 V
      G159-12 (V+) - G159-23 (CGND) W - Shielded Video signal Ignition switch ON, camera lens not covered, displaying an image Pulse generation (See waveform 1)
      Ignition switch ON, camera lens covered, blacking out screen Pulse generation (See waveform 2)
      G159-24 (V-) - G159-23 (CGND) R - Shielded Ground Always Below 1 Ω

      Tech Tips

      A waterproof connector is used for the 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 television camera assembly may have a malfunction.

    2. A01V7ZQC03
      *a Waveform 1
      *b Waveform 2
      *c Synchronized Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):

      Tech Tips

      A waterproof connector is used for the television camera assembly. Therefore, inspect the waveform at the radio and display receiver assembly with the connector connected.


      1. Waveform

        Item Content
        Terminal No. (Symbol) G159-12 (V+) - G159-23 (CGND)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition

        Waveform 1: Ignition switch ON, camera lens not covered, displaying an image

        Waveform 2: Ignition switch ON, camera lens covered, blacking out the screen

        Tech Tips

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