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Home >> Genesis >> 2021 >> G90 5.0 Ultimate, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (Engine Control System Diagnosis - 3.3L (9 Of 9)) >> DTC U0001-00: High Speed CAN Communication Bus off >> Component Inspection >> Check CAN communication waveform generation

Check CAN communication waveform generation

WARNING: This page is about a different variant/trim than selected.
  1. IG "OFF" and connect each channel scope to P-CAN HIGH terminal and P-CAN LOW terminal.
  2. IG "ON" after disconnecting each module that included in P-CAN network.

    Specification:  At Ignition "ON", the waveform is same as the one of "Signal Waveform & Data".

    * Different from "Signal Waveform & Data", if 1) both CAN HIGH and LOW signal are fixed at 2.5 V or 2) HIGH and LOW signal are fixed at 3.5 V and 1.5 V, respectively, it is due to communication error between modules.

    G14205357Courtesy of HYUNDAI MOTOR AMERICA
  3. Is the measured waveform normal?

    YES 

    NO