WIDE VIEW FRONT MONITOR SYSTEM TERMINALS OF ECU


  1. PARKING ASSIST ECU

    A01X7KVE02

    1. Disconnect the F75 and F76 parking assist ECU connectors.

    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
      F75-1 (+B) - F75-4 (GND1) L - W-B Power source signal Always 11 to 14 V
      F75-4 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F75-8 (IG) - F75-4 (GND1) G - W-B IG Power source signal Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      F75-9 (ACC) - F75-4 (GND1) GR - W-B ACC Power source signal Engine switch on (ACC) 11 to 14 V
      Engine switch off Below 1 V
      F76-7 (BLSW) - F75-4 (GND1) G - W-B Front and side monitor main switch power source signal Engine switch on (IG), front and side monitor main switch assembly on 11 to 14 V

    3. Reconnect the F75 and F76 parking assist ECU connectors.

    4. Measure the voltage according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F75-10 (TX-) L AVC-LAN communication signal - -
      F75-11 (TX+) W AVC-LAN communication signal - -
      F76-36 (BCV-) - F76-35 (BGND) W - Shielded Front television camera ground Always Below 1 V
      F76-12 (BCV+) - F76-35 (BGND) R - Shielded Front television camera display signal input Engine switch on (IG), front and side monitor main switch assembly on Pulse generation (See waveform)
      F76-35 (BGND) - F75-4 (GND1) Shielded - W-B Front television camera ground (shield) Always Below 1 V
      F76-11 (BCB+) - F76-35 (BGND) B - Shielded Power source to front television camera Engine switch on (IG), front and side monitor main switch assembly on 5.5 to 7.05 V

    5. Using an oscilloscope, check waveform.

      A01X82NE01
      Text in Illustration
      *a Waveform A (under normal conditions)
      *b Waveform B (camera lens is covered, blacking out the screen)
      *c Synchronized Signal
      *d Video Waveform

      Tech Tips

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


      1. Waveform

        Item Content
        Terminal No. (Symbol) F76-12 (BCV+) - F76-35 (BGND)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition

        • Waveform A: Engine switch on (IG), front and side monitor main switch assembly on and camera lens is not covered, displaying an image

        • Waveform B: Engine switch on (IG), front and side monitor main switch assembly on and camera lens is covered, blacking out the screen.

  2. FRONT TELEVISION CAMERA ASSEMBLY

    A01WZVXE02

    1. Disconnect the A55 front television camera assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A55-3 (BGND) - Body ground BR - Body ground Ground Always Below 1 V
      A55-1 (BCB+) - A55-3 (BGND) G - BR Power source

      Engine switch on (IG)

      Front and side monitor main switch on

      		 5.5 to 7.05 V

    3. Reconnect the A55 front television camera assembly connector.

      Tech Tips

      A waterproof connector is used for the front television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connector connected.

    4. Measure the voltage according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A55-2 (BCV+) - A55-3 (BGND) L -BR Display signal Engine switch on (IG), front and side monitor main switch assembly on Pulse generation (See waveform)
      A55-4 (BCV-) - A55-3 (BGND) Y -BR Front television camera ground Always Below 1 V

    5. Using an oscilloscope, check waveform.

      A01X82NE01
      Text in Illustration
      *a Waveform A (under normal conditions)
      *b Waveform B (camera lens is covered, blacking out the screen)
      *c Synchronized Signal
      *d Video Waveform

      Tech Tips

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


      1. Waveform

        Item Content
        Terminal No. (Symbol) A55-2 (BCV+) - A55-3 (BGND)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition

        • Waveform A: Engine switch on (IG), front and side monitor main switch assembly on and camera lens is not covered, displaying an image

        • Waveform B: Engine switch on (IG), front and side monitor main switch assembly on and camera lens is covered, blacking out the screen.

  3. MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

  4. MULTI-DISPLAY ASSEMBLY Click here