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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (Engine Control System Diagnosis (2 Of 2) (HEV)) >> DTC U0001: High Speed CAN Communication Bus Off >> W/Harness Inspection >> Check CAN communication line for short to battery

Check CAN communication line for short to battery

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the connectors related to the CAN communication.
  2. Ignition "ON" & Engine "OFF".
  3. Measure voltage between High signal terminal of PCM harness connector and chassis ground.
  4. Measure voltage between Low signal terminal of PCM harness connector and chassis ground.

    Specification:  Approx. 0V

    Fig 1: Measuring Voltage Between High And Low Signal Terminal Of PCM Harness Connector And Chassis Ground
    G10606980Courtesy of HYUNDAI MOTOR AMERICA
  5. Is voltage within the specification?

    YES 

    • Go to next step as below.

    NO 

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