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Home >> Kia >> 2009 >> Optima LX, 2.7 4 >> Repair and Diagnosis >> Brakes >> Traction Control >> ESC Troubleshooting >> DTC C1503: TCS/ESC (Esp) Switch Error >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Circuit Monitoring
  • Open or short ESC switch circuit
  • Faulty ESC switch
Enable Conditions
  • When the ESC switch is ON for 1 minute.
Fail Safe
  • Inhibit the ESC control and allow the ABS/EBD control.
  • The ESC warning lamp is activated.