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Home >> Kia >> 2020 >> Optima SX >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Anti-Lock Brake System (Abs)/Electronic Stability Control (ESC) Diagnosis) >> DTC C1503-01: TCS Switch Error >> DTC Information And Inspection >> Monitor DTC Status

Monitor DTC Status

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
  1. Plug GDS to Data Link Connector (DLC).
  2. Turn "ON" the Ignition Switch.
  3. Select "Diagnostic Trouble Codes (DTC)," and click "DTC Status" to check DTC information.
  4. Read the "DTC State" parameter.
  5. Record all DTCs, DTC state and freeze frame data. Is the DTC State "Present?"
    NOTE:
    1. History (Not Present) state: the DTC set but has been cleared.
    2. Present state: the DTC is active at present time.

    YES 

    • Go to next procedure.

    NO 

    • Fault can be intermittent, caused by poor connection in ESP (ESC/TCS) OFF switch line and/or ESP (ESC)'s connector. Or, ESP (ESC) memory was not cleared after it was repaired. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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