REAR VIEW MONITOR SYSTEM (for Radio and Display Type) TERMINALS OF ECU


  1. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

    A01INYAE04

    1. Disconnect the H105 and H107 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
      H105-1 (IG) - H107-7 (GND1) L - BR IG signal Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      H107-3 (ACC1) - H107-7 (GND1) GR - BR Accessory (On) Ignition switch off Below 1 V
      Ignition switch ACC 11 to 14 V
      H107-4 (+B1) - H107-7 (GND1) SB - BR Battery Always 11 to 14 V
      H107-7 (GND1) - Body ground BR - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the H105 and H107 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
      H105-2 (REV) - H107-7 (GND1) R - BR Reverse signal

      See "Microphone Level Test" in Operation Check Click here

      		-
      H106-7 (CA+) - H106-15 (CGND) B - Shielded Power source Within 60 seconds after turning ignition switch to ACC 5.5 to 7.05 V
      H106-8 (V+) - H106-16 (V-) R - W Display signal Ignition switch ON, shift lever in R Pulse generation (See waveform 1)
      Ignition switch ON, shift lever in R, screen blacked out by covering camera lens Pulse generation (See waveform 2)
      H106-15 (CGND) - Body ground Shielded - Body ground Shielding Always Below 1 Ω

      If the result is not as specified, the radio and display receiver assembly may have a malfunction.

    5. A01IQ3ZE28
      Text in Illustration
      *a Waveform 1
      *b Waveform 2
      *c Synchronization Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):


      1. Waveform 1

        Item Content
        Measurement terminal H106-8 (V+) - H106-16 (V-)
        Measurement setting 0.2 V/DIV., 50 μs./DIV.
        Condition Ignition switch ON, shift lever in R

        Tech Tips

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

      2. Waveform 2

        Item Content
        Measurement terminal H106-8 (V+) - H106-16 (V-)
        Measurement setting 0.2 V/DIV., 50 μs./DIV.
        Condition Ignition switch ON, shift lever in R, screen blacked out by covering camera lens

        Tech Tips

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