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Home >> Hyundai >> 2009 >> Elantra GLS, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Abs (Anti-Lock Brake System) >> Abs (Anti-Lock Brake System) >> DTC C1503 TCS/ESC Switch Error >> Monitor SCANTOOL Data

Monitor SCANTOOL Data

  1. Connect scantool to Data Link Connector (DLC).
  2. Ignition "ON" & Engine "OFF".
  3. Press the ESC SWITCH.
  4. Monitor the "TCS/ESC SWITCH" parameter on the scantool.
    Fig 1: Scan Tool Display - TCS/ESC SWITCH Parameter
    G05365015Courtesy of HYUNDAI MOTOR CO.
  5. Whenever the switch is pushed up/down, is the ESC off switch's scantool data changed ON/OFF?

    YES 

    • Fault is intermittent caused by poor connection in ESC switch line or was repaired and HECU 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.

    NO 

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