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


  1. REAR TELEVISION CAMERA ASSEMBLY


    1. Disconnect the z22 rear television camera assembly connector.

      B004F71N17

    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
      z22-6 (CB+) - Body ground R - Body ground Power source Power switch on (ACC) 5.8 to 6.5 V

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

    3. Reconnect the z22 rear television camera assembly connector.

    4. Check for pulses between each terminal of the connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      z22-3 (CV+) - z22-2 (CV-) Y - BR Video signal

      Power switch on (IG)

      Shift lever in R

      Camera lens not covered, displaying image

      Pulse generation

      (Refer to waveform 1)

      Power switch on (IG)

      Shift lever in R

      Camera lens covered, blacking out screen

      Pulse generation

      (Refer to waveform 2)
      z22-5 (CGND) - Body ground GR - Body ground Camera ground Always Below 1 V

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the multi-display assembly with the connector connected.

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

    5. B004EGYC04
      *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 multi-display assembly with the connector connected.


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

        Item Content
        Measurement terminal z22-3 (CV+) - z22-2 (CV-)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power 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 power switch is on (ACC).

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

        Item Content
        Measurement terminal z22-3 (CV+) - z22-2 (CV-)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power 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 power switch is on (ACC).

  2. MULTI-DISPLAY ASSEMBLY

    B004GVEN02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    O60-13 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
    O60-9 (V-) - O60-13 (GND1) W - W-B Video signal ground Always Below 1 Ω
    O60-8 (V+) - O60-9 (V-) R - W-B Video signal

    Camera lens not covered, displaying image

    Power switch on (IG), shift lever in R

    Pulse generation

    (Refer to waveform 1)

    Camera lens covered, blacking out screen

    Power switch on (IG), shift lever in R

    Pulse generation

    (Refer to waveform 2)
    O60-21 (CGND) - Body ground - Shield ground Power switch off Below 1 Ω
    O60-10 (CA+) - O60-13 (GND1) B - W-B Power source Always 5.8 to 6.5 V
    O60-3 (REV) - O60-13 (GND1) R - W-B Reverse signal Power switch on (IG), shift lever in R 9 to 16 V
    Power switch on (IG), shift lever not in R Below 2 V

    1. Reference (Oscilloscope waveform):


      1. B004EGYC04
        *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

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

        Item Content
        Measurement terminal O60-8 (V+) - O60-9 (V-)
        Measurement setting 200 mV/DIV., 50 μs/DIV.
        Condition Power 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 power switch is on (ACC).

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

        Item Content
        Measurement terminal O60-8 (V+) - O60-9 (V-)
        Measurement setting 200 mV/DIV., 50 μs/DIV.
        Condition Power 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 power switch is on (ACC).