PARKING ASSIST MONITOR SYSTEM (w/o Parallel Parking Assist Function) TERMINALS OF ECU


  1. REAR TELEVISION CAMERA ASSEMBLY


    1. Disconnect the U22 rear television camera assembly connector.

      A01G7HFE07

    2. Measure the voltage on the wire harness side connector 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 Engine switch on (ACC) 5.5 to 7.05 V

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

    3. Reconnect the U22 rear television camera assembly connector.

    4. Measure the voltage and check for pulses at 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

      Engine switch on (IG)

      Shift lever in R

      Camera lens not covered, displaying image

      Pulse generation

      (See waveform 1)

      Engine switch on (IG)

      Shift lever in R

      Camera lens covered, blacking out screen

      Pulse generation

      (See waveform 2)
      U22-5 (CGND) - Body ground BR - Body ground Shield ground Always Below 1 V

      Tech Tips

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

      If the result is not as specified, the rear television camera assembly may be malfunctioning.

    5. A01G8XQE22
      Text in Illustration
      *a Waveform 1 (camera lens is not covered, displaying an image)
      *b Waveform 2 (camera lens is covered, blacking out the screen)
      *c Synchronization Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):

      Tech Tips

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


      1. Waveform 1 (camera lens is not covered, displaying an image)

        Item Content
        Measurement terminal U22-3 (CV+) - U22-2 (CV-)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Engine switch on (IG), shift lever in R

        Tech Tips


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

        • The video waveform is constantly output when the engine switch is on (ACC).

      2. Waveform 2 (camera lens is covered, blacking out the screen)

        Item Content
        Measurement terminal U22-3 (CV+) - U22-2 (CV-)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Engine switch on (IG), shift lever in R

        Tech Tips


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

        • The video waveform is constantly output when the engine switch is on (ACC).

  2. RADIO RECEIVER ASSEMBLY Click here