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Home >> Hyundai >> 2018 >> Elantra GT Base, Automatic Trans >> Repair and Diagnosis >> Electrical >> Body Electrical >> Integrated Gateway Power Control Module Diagnosis >> DTC B1621-00: ECU-Failure >> DTC Inspection >> Monitor DTC Status

Monitor DTC Status

  1. Connect GDS to "DATA LINK CONNECTOR (DLC)".
  2. IG key "ON", Engine "OFF".
  3. Select "Diagnostic Trouble Codes (DTC)" with GDS.
  4. Monitor the diagnostic trouble code and present of the trouble code.
  5. Erase the DTC and operate the vehicle within DTC Enable conditions in General information.
    G12635251Courtesy of HYUNDAI MOTOR AMERICA
  6. Is the DTC output again?

    YES 

    • Substitute with a known-good IGPM*, check for proper operation.

      → Repair or replace as necessary, go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Fault is intermittent caused by Poor Contact in CGW* connector.

      → Repair or replace as necessary, go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NOTE: IGPM:  "IGPM"
    CGW*:  "IGPM_GATEWAY"