REAR VIEW MONITOR SYSTEM TERMINALS OF ECU


  1. RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. Disconnect the F126 and F125 radio and display receiver assembly 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
      F126-3 (ACC1) - F126-7 (GND1) GR - LA Power source (ACC) Ignition switch off Below 1 V
      Ignition switch ACC 11 to 14 V
      F126-4 (+B1) - F126-7 (GND1) LA-SB - LA Power source (+B) Ignition switch off 11 to 14 V
      F126-7 (GND1) - Body ground LA - Body ground Ground Always Below 1 Ω
      F125-1 (IG) - F126-7 (GND1) B - LA Power source (IG) Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V

    3. Reconnect the F126 and F125 radio and display receiver assembly connectors.

    4. Measure the voltage, resistance and waveform according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F50-11 (CA+) - F50-23 (CGND) B - Shielded Rear television camera assembly power source Ignition switch ACC 5.5 to 7.05 V
      F50-12 (V+) - F50-23 (CGND) R - Shielded Video signal Ignition switch ON, shift lever in R, camera lens not covered, displaying an image+

      Pulse generation

      (See waveform 1)
      Ignition switch ON, shift lever in R, camera lens covered, blacking out screen

      Pulse generation

      (See waveform 2)
      F50-23 (CGND) - Body ground Shielded - Body ground Shielded ground Always Below 1 Ω
      F50-24 (V-) - F50-23 (CGND) W - Shielded Ground Always Below 1 Ω
    5. A001YDFC03
      *a Waveform 1
      *b Waveform 2
      *c Synchronization Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):


      1. Waveform 1

        Item Content
        Terminal No. (Symbol) F50-12 (V+) - F50-23 (CGND)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition Ignition switch ON, shift lever in R, camera lens not covered, displaying an image

        Tech Tips

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

      2. Waveform 2

        Item Content
        Terminal No. (Symbol) F50-12 (V+) - F50-23 (CGND)
        Tool Setting 200 mV/DIV., 50 μsec./DIV.
        Condition Ignition switch ON, shift lever in R, camera lens covered, blacking out screen

        Tech Tips

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