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


  1. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

    A00OLQ3E01

    1. Disconnect the D124 and D125 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
      D124-1 (IG) - D125-7 (GND1) G - BR IG signal Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      D125-3 (ACC1) - D125-7 (GND1) GR - BR Accessory (On) Ignition switch off Below 1 V
      Ignition switch ACC 11 to 14 V
      D125-4 (+B1) - D125-7 (GND1) SB - BR Battery Always 11 to 14 V
      D125-7 (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 D124 and D125 radio and display receiver assembly connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D124-2 (REV) - D125-7 (GND1) R - BR Reverse signal Ignition switch ON, shift lever in R 7.5 to 14 V
      Ignition switch ON, shift lever not in R Below 1 V
      D123-7 (CA+) - D123-15 (CGND) B - Shielded Power source Within 60 seconds after turning ignition switch to ACC 5.5 to 7.05 V
      D123-8 (V+) - D123-16 (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)
      D123-15 (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. A00OJKGE28
      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 D123-8 (V+) - D123-16 (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 D123-8 (V+) - D123-16 (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.