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Home >> Kia >> 2007 >> Rondo Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Abs (Anti-Lock Brake System) >> DTC C1503 ESC Switch Error >> Component Inspection

Component Inspection

  1. Ignition "OFF".
  2. Disconnect ESC switch connector.
  3. Measure resistance between terminal "4" of the ESC switch component connector and terminal "5" of the ESC switch component connector.

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

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

    Fig 1: Measuring Resistance Between Terminal "4, 5"
    G05187585Courtesy of KIA MOTORS AMERICA, INC.
  4. Is the measured resistance within specifications?

    YES 

    • Fault is intermittent caused by poor connection in ESC switch line or was repaired and HECU memory was not cleared. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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