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Home >> Genesis >> 2020 >> G80 5.0 Ultimate, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Electronic Stability Control Diagnosis >> DTC C1503: TCS/ESC (ESP) Switch Error >> Component Inspection >> ESP (ESC) Switch Check

ESP (ESC) Switch Check

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

    Specification:  Approx. ∞ Ω

  4. Is the measured resistance within specifications?

    YES 

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

    NO 

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