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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 >> Signal Circuit Inspection >> Short Check (to ground)

Short Check (to ground)

  1. IG "OFF".
  2. Disconnect ESC OFF Switch connector.
  3. Measure the voltage between signal terminal of ESC OFF Switch harness connector while switch is being pressed.

    Specification:  Approximately. 0V

  4. Is the measured value within specifications?

    YES 

    • Go to next procedure.

    NO