DTC C1503 TCS/ESC Switch Error: DTC Detecting Condition

WARNING: This page is about a different car, the 2007 Kia Sedona and 2006 Kia Sedona. However, it is still accessible from the selected car via links, so may be relevant.

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible cause
DTC strategy	Short circuit monitoring	Open or short ESC switch Inoperative ESC switch
Monitoring Period	Continuous
Enable Conditions	When the ESC switch is ON for 60 sec.
Fail Safe	ABS/EBD control is available. Meanwhile, stop checking the ESC switch failure under the ESC control.