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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 65 (Automatic Transaxle System Diagnosis (HEV)) >> DTC U0001: High Speed CAN Communication Bus Off (C-CAN) >> Scantool Diagnostics >> Monitor Scantool Data

Monitor Scantool Data

WARNING: This page is about a different variant/trim than selected.
  1. Connect scantool to Data Link Connector (DLC).
  2. Engine "ON".
  3. Monitor the "CAN Communication Service Data (Engine RPM, Vehicle Speed Sensor, Throttle P. Sensor)" parameters on the GDS.
    Fig 1: Scantool Display - Signal Waveform And Current Data (Channel A: OPU Status, Channel B: Hall Signal (Normal Situation))
    G10603788Courtesy of HYUNDAI MOTOR AMERICA
    Fig 2: Scantool Display - Signal Waveform And Current Data (Channel A: OPU Status, Channel B: Hall Signal (CAN Line Error))
    G10603789Courtesy of HYUNDAI MOTOR AMERICA
  4. Is measured current data within specific?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or PCM/TCM's connector or was repaired and PCM/TCM's memory was not cleared.

      Thoroughly check connectors for looseness, poor connection, ending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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