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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> ESC/AHB Diagnosis (HEV) >> DTC C1503-01: TCS Switch Error >> Wiring Inspection >> Power Circuit Inspection >> Open or Short Check

Open or Short Check

  1. IG "OFF" & Disconnect ESC OFF Switch connector.
  2. IG "ON"
  3. Measure voltage between power terminal of ESC OFF Switch harness connector and chassis ground.

    Specification:  Approx. 12V

  4. Is the measured value within specifications?

    YES 

    NO