C1503 TCS/ESP Switch error: DTC Detecting Condition

Item	Detecting Condition	Possible cause
DTC Strategy	Short circuit monitoring	Open or short ESC switch
Monitoring Period	Continuous
Enable Conditions	When the ESC switch is ON for 60sec.
Fail Safe	Inhibit the ESC control and allow the ABS/EBD control. The ESC warning lamps are activated.