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Home >> Hyundai >> 2017 >> Veloster Base, Standard Trans >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Antilock Brake System (Abs)/Electronic Stability Control (ESC) Diagnosis >> DTC C1503: TCS/ESC (ESP) Switch Error >> Component Inspection >> ESC (ESP) switch Check
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ESC (ESP) switch Check

  1. IG "OFF".
  2. Disconnect the ESC (ESP) switch connector.
  3. Measure resistance between power terminal and signal terminal of the ESC (ESP) switch connector.

    Specification:  Approx. below 1Ω - (In case of pressing the ESC (ESP) switch)

    Approx. ∞ Ω - (In case of not pressing the ESC (ESP) switch)

  4. Is the measured resistance within specifications?

    YES 

    • Fault is intermittent caused by poor connection in ESC (ESP) switch harness and/or HECU's connector. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Substitute with a known-good ESC (ESP) switch and check for proper operation. If problem is corrected, replace ESC (ESP) switch and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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