INTELLIGENT PARKING ASSIST SYSTEM TERMINALS OF ECU


  1. PARKING ASSIST ECU

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    1. Disconnect the L65 connector from the parking assist ECU.

    2. Measure the voltage and resistance of each terminal of the wire harness side connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L65-1 (+B) - L65-3 (GND1) SB - W-B Power source signal Always 11 to 14 V
      L65-3 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      L65-7 (IG) - L65-3 (GND1) B - W-B IG power source signal Power switch on (IG) 11 to 14 V
      L65-8 (ACC) - L65-3 (GND1) GR - W-B ACC power source signal Power switch on (ACC) 11 to 14 V

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

    3. Reconnect the L65 connector to the ECU.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L64-11 (CV-) - L65-3 (GND1) B - W-B Rear television camera ground Always Below 1 V
      L64-12 (CV+) - L65-3 (GND1) R - W-B Rear television camera display signal (NTSC) input

      Power switch on (IG)

      Shift lever in R

      Under normal conditions

      Pulse generation

      (See waveform 1)

      Power switch on (IG)

      Shift lever in R

      Camera lens is covered, blacking out screen

      Pulse generation

      (See waveform 2)
      L64-13 (CGND) - L65-3 (GND1) Shield - W-B Rear television camera ground (shield) Always Below 1 V
      L64-14 (CB+) - L65-3 (GND1) W - W-B Power source to rear television camera

      Power switch on (IG)

      Shift lever in R

      		 5.8 to 7.0 V
      L64-19 (CSB3) - L65-3 (GND1) G - W-B Power source to ultrasonic sensor Power switch on (IG) 7 to 9 V
      L64-20 (CSG3) - L65-3 (GND1) R - W-B Ultrasonic sensor ground Always Below 1 Ω
      L64-21 (LIN3) GR Ultrasonic sensor signal input and output - -
      L65-11 (ISSW) - L65-3 (GND1) L - W-B Parking assist pre support signal input

      Power switch on (IG)

      Parking assist pre support switch pushed in

      		 Below 1 V

      Power switch on (IG)

      Parking assist pre support switch not pushed

      		 4.75 to 5.25 V
      L65-21 (CANL) - L65-3 (GND1) BR - W-B CAN communication signal CAN communication circuit Pulse generation
      L65-22 (CANH) - L65-3 (GND1) Y - W-B CAN communication signal CAN communication circuit Pulse generation
      L65-24 (TX-) - L65-25 (TX+) P - LG AVC-LAN communication signal - -

      If the result is not as specified, the ECU may have a malfunction.

    5. A01JBFZE01
      Text in Illustration
      *1 Waveform 1 (under normal conditions)
      *2 Waveform 2 (camera lens is covered, blacking out the screen)
      *3 Synchronized Signal
      *4 Video Waveform

      Reference (Oscilloscope waveform):

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connector connected.


      1. Waveform 1 (under normal conditions)

        Item Content
        Terminal No. (Symbol) L64-12 (CV+) - L65-3 (GND1)
        Tool Setting 200 mV/DIV., 50 μsec./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.

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

        Item Content
        Terminal No. (Symbol) L64-12 (CV+) - L65-3 (GND1)
        Tool Setting 200 mV/DIV., 50 μsec./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.

  2. REAR TELEVISION CAMERA ASSEMBLY

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    1. Disconnect the V6 connector from the rear television camera assembly.

    2. Measure the voltage of each terminal of the wire harness side connector.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      V6-3 (CGND) - Body ground W-B - Body ground Ground Always Below 1 V
      V6-4 (CB+) - V6-3 (CGND) W - W-B Power source

      Power switch on (IG)

      Shift lever in R

      		 5.8 to 7.0 V

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

    3. Reconnect the V6 connector to the rear television camera assembly.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      V6-2 (CV+) - V6-1 (CV-) R - B Display signal

      Power switch on (IG)

      Shift lever in R

      Under normal conditions

      Pulse generation

      (See waveform 1)

      Power switch on (IG)

      Shift lever in R

      Camera lens covered, blacking out screen

      Pulse generation

      (See waveform 2)

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connector connected.

      If the result is not as specified, the camera may have a malfunction.

    5. A01JBFZE01
      Text in Illustration
      *1 Waveform 1 (under normal conditions)
      *2 Waveform 2 (camera lens is covered, blacking out the screen)
      *3 Synchronized Signal
      *4 Video Waveform

      Reference (Oscilloscope waveform):

      Tech Tips

      A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connector connected.


      1. Waveform 1 (under normal conditions)

        Item Content
        Terminal No. (Symbol) V6-2 (CV+) - V6-1 (CV-)
        Tool Setting 200 mV/DIV., 50 μsec./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.

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

        Item Content
        Terminal No. (Symbol) V6-2 (CV+) - V6-1 (CV-)
        Tool Setting 200 mV/DIV., 50 μsec./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.

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