LANE DEPARTURE ALERT SYSTEM TERMINALS OF ECU


  1. CHECK LANE DEPARTURE WARNING CAMERA

    A01FNP9N02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    W9-4 (LKSW) - W9-11 (GND)* R - BR Lane departure alert main switch (steering pad switch assembly) signal Engine switch on (IG), lane departure alert main switch (steering pad switch assembly) off 1 MΩ or higher
    W9-4 (LKSW) - W9-11 (GND)* R - BR Lane departure alert main switch (steering pad switch assembly) signal Engine switch on (IG), lane departure alert main switch (steering pad switch assembly) on 228 to 252 Ω
    W9-6 (CA1P) - W9-11 (GND) R - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (Waveform 1)
    W9-7 (IGB) - W9-11 (GND) V - BR Power source Engine switch on (IG) 11 to 14 V
    W9-11 (GND) - Body ground BR - Body ground Ground Always Below 1 Ω
    W9-12 (CA1N) - W9-11 (GND) B - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (Waveform 1)

    • *: w/o Dynamic Radar Cruise Control System

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

    Tech Tips

    Oscilloscope waveform samples are provided here for reference only. Noise and fluctuating waveforms have been omitted.


    1. A01FMEPE09

      Waveform 1 (CAN communication signal)

      Item Content
      Terminal Name

      CH1: W9-6 (CA1P) - W9-11 (GND)

      CH2: W9-12 (CA1N) - W9-11 (GND)
      Tester Range 1 V/DIV., 50 μs./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The waveform will vary depending on the content of the digital communication (digital signal).

  2. CHECK DRIVING SUPPORT ECU ASSEMBLY (w/ Dynamic Radar Cruise Control System)

    A01FLTWN27

    Note

    Do not apply excessive force to the connector. If a force of 10 kg or more is applied, the connector may brake.

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    Q1-6 (SPSW) - Q1-25 (GND) W - BR Lane departure alert main switch (steering pad switch assembly) signal Engine switch on (IG), lane departure alert main switch (steering pad switch assembly) off 1 MΩ or higher
    Q1-6 (SPSW) - Q1-25 (GND) W - BR Lane departure alert main switch (steering pad switch assembly) signal Engine switch on (IG), lane departure alert main switch (steering pad switch assembly) on 228 to 252 Ω
    Q1-17 (CA2L) - Q1-25 (GND) B - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (Waveform 1)
    Q1-18 (CA1N) - Q1-25 (GND) G - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (Waveform 2)
    Q1-25 (GND) - Body ground BR - Body ground Ground Always Below 1 Ω
    Q1-27 (STP-) - Q1-25 (GND) R - BR Stop light switch assembly signal Brake pedal depressed Below 1.5 V
    Q1-27 (STP-) - Q1-25 (GND) R - BR Stop light switch assembly signal Brake pedal released 7.5 to 14 V
    Q1-28 (ST1-) - Q1-25 (GND) P - BR Stop light switch assembly signal (opposite to STP terminal) Engine switch on (IG), Brake pedal depressed Below 1.5 V
    Q1-28 (ST1-) - Q1-25 (GND) P - BR Stop light switch assembly signal (opposite to STP terminal) Engine switch on (IG), Brake pedal released 7.5 to 14 V
    Q1-30 (B) - Q1-25 (GND) B - BR Power source Engine switch on (IG) 11 to 14 V
    Q1-39 (CA2H) - Q1-25 (GND) G - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (Waveform 1)
    Q1-40 (CA1P) - Q1-25 (GND) B - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (Waveform 2)

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

    Tech Tips

    Oscilloscope waveform samples are provided here for reference only. Noise and fluctuating waveforms have been omitted.


    1. A01FMEPE09

      Waveform 1 (CAN communication signal)

      Item Content
      Terminal Name

      CH1: Q1-39 (CA2H) - Q1-25 (GND)

      CH2: Q1-17 (CA2L) - Q1-25 (GND)
      Tester Range 1 V/DIV., 50 μs./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The waveform will vary depending on the content of the digital communication (digital signal).

    2. A01FMEPE09

      Waveform 2 (CAN communication signal)

      Item Content
      Terminal Name

      CH1: Q1-40 (CA1P) - Q1-25 (GND)

      CH2: Q1-18 (CA1N) - Q1-25 (GND)
      Tester Range 1 V/DIV., 50 μs./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The waveform will vary depending on the content of the digital communication (digital signal).