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Home >> Hyundai >> 2017 >> Sonata Plug-In Hybrid >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Electric Parking Brake Diagnosis (Except HEV)) >> DTC C1604-04: ECU Hardware Error >> DTC Inspection >> Monitor DTC Status

Monitor DTC Status

WARNING: This page is about a different car, the 2016 Hyundai Sonata and 2015 Hyundai Sonata. However, it is still accessible from the selected car via links, so may be relevant.
  1. Vehicle Parked & Ignition 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. If DTC Status is present fault, then go to the next procedure and if it is History fault, then clear DTC and check the same DTC reoccurs.
    Fig 1: Screen Display - DTC Information
    G10568997Courtesy of HYUNDAI MOTOR AMERICA
  5. Is parameter displayed "Present fault"?

    YES 

    • Substitute with a known-good EPB Module and check for proper operation. If problem is corrected, replace EPB Module (inside EPB ASS'Y) and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    • Perform actuation by EPB SW and check whether it is operating correctly.

    NO