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Home >> Kia >> 2019 >> Forte EX >> Repair and Diagnosis >> Brakes >> Traction Control >> Electronic Stability Control Diagnosis >> DTC C1503-01: TCS Switch Error >> Component Inspection
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Component Inspection

  1. Ignition "OFF".
  2. Connect KDS to Data Link Connector (DLC).
  3. Ignition "ON".
  4. Select "Diagnostic Trouble Codes (DTCs)" mode.
  5. Using a KDS, Clear DTC.
  6. Activate the ESC OFF switch.
  7. Check that the ESC OFF operation lamp up on the instrument cluster.
  8. Is the normal operation lamp on?

    Good 

    • Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Repair or replace as necessary and then go to "VERIFICATION OF REPAIR " procedure.

    No Good 

    • Carefully re-do this troubleshooting guide steps.
    • If no problems were found with the circuits or connectors, replace the ESC On/Off Switch and go to "VERIFICATION OF REPAIR " procedure.
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