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Home >> Hyundai >> 2018 >> Santa Fe SE, AWD >> Repair and Diagnosis >> Transmission >> Transfer Case >> 4WD Control System Diagnosis >> DTC U0122: Lost Communication With Vehicle Dynamics Control Module >> Wiring Inspection >> CAN Communication Line Inspection >> Check Short To Battery In CAN Communication Line

Check Short To Battery In CAN Communication Line

  1. IG Key "OFF".
  2. Disconnect PCM, 4WD ECU, TCM and ABS connector.
  3. IG KEY OFF
  4. Measure voltage between CAN high terminal (# 3) of diagnostic connector and chassis ground.
  5. Measure voltage between CAN low terminal (#11) of diagnostic connector and chassis ground.

    Specification:  About 0V

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