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Home >> Hyundai >> 2016 >> Genesis 5.0 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 5.0L (3 Of 3) >> DTC U0122: Lost Communication With Vehicle Dynamics Control Module >> Wiring Inspection >> CAN Communication Circuit Inspection

CAN Communication Circuit Inspection

  1. IG "OFF" and disconnect ESC connector and ECM connector.
  2. Check resistance between CAN-HIGH terminal of ESC Connector and CAN-HIGH terminal of harness connector (Measurement "A").
  3. Check resistance between CAN-LOW terminal of ESC Connector and CAN-LOW terminal of harness connector (Measurement "B").

    Specification:  Below 1.0Ω

  4. Is the measured resistance within specification?

    YES 

    • Substitute with a known-good ESC and check for proper operation. If the problem is corrected, replace ESC and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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