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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Autonomous Emergency Braking (AEB) System Diagnosis (HEV) >> DTC C1604-04: ECU Hardware Error >> DTC Inspection >> Monitor DTC Status

Monitor DTC Status

  1. Vehicle parked & Ignition switch 'ON'.
  2. Connect GDS and select "DTC Analysis" mode.
  3. Click "DTC Status" on the "Diagnostic Trouble Codes (DTC)" menu bar to see DTC's information.
  4. Confirm that "DTC Readiness Flag" indicates "COMPLETED". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions.
  5. Read "DTC Status" parameter.
    G13847022Courtesy of HYUNDAI MOTOR AMERICA
  6. Is parameter displayed "Present fault"?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or control module's connector, or was repaired and control module's memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
    • Repair or replace as necessary, and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    • Substitute with a known-good AEB(SCC) Module and check for proper operation. If the problem is corrected, replace AEB(SCC) Module.
    • After replacing with a known-good AEB(SCC) Module, perform the "Variant Coding" at the "Vehicle S/W Management" mode by using GDS.

    NO 

    G13847023Courtesy of HYUNDAI MOTOR AMERICA
    G13847024Courtesy of HYUNDAI MOTOR AMERICA