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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 56 (Low Dc/Dc Converter Diagnosis (HEV)) >> DTC P1A89: DC/DC Converter Current Sensor Fault >> Scantool Diagnostics >> Monitor DTC Status

Monitor DTC Status

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON (SSB LED "BLUE") & Vehicle "STOP".
  2. Connect GDS and select "DTC Analysis" mode.
  3. Click "DTC Status" on the menu bar to view DTC information.
  4. Confirm that the "DTC Readiness Flag" indicates "COMPLETED". If not, drive the vehicle within conditions noted in Freeze Frame Data or Enable Conditions.
  5. Read the "DTC Status" parameter.
    Fig 1: Screen Display - DTC Status
    G10607076Courtesy of HYUNDAI MOTOR AMERICA
  6. Is parameter displayed "Present fault"?

    YES 

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

    NO 

    Fig 2: Identifying Power Relay Assembly
    G10607077Courtesy of HYUNDAI MOTOR AMERICA