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Home >> Hyundai >> 2025 >> Kona N Line, 4WD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 4WD Control Diagnosis >> DTC U0122-87: Lost Communication With Vehicle Dynamics Control Module >> DTC Inspection >> Inspection for P1-CAN communication waveform >> Notes
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Inspection for P1-CAN communication waveform: Notes

  1. Measure the P1-CAN waveforms by referring to the chart below.
List of Inspection Check waveform Inspection
P1-CAN waveform Figure attached
(Measured waveform from EF11)
  1. Reference Voltage 2.5V

    (High: 2.5V → 3.5V up, Low: 2.5V → 1.5V down)

  2. Idle (2.5V) section of a certain cycle
  3. Regular data frame time (Approx. 228 μs)
  4. High, Low symmetrical frame shape
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