DTC C13A1/12: Short in Power Supply Relay Circuit [03/2017 - 09/2018]: Description

C13A1/12 is stored if the power supply relay in the parking brake ECU assembly has a short circuit.

C13A1/12 is stored if the engine switch is off and a voltage of 2.5 V or higher is applied to the IG terminal and an electric parking brake switch assembly malfunction or wire harness malfunction between the switch and ECU occurs.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Memory	Note
C13A1/12	Short in Power Supply Relay Circuit	Both of following conditions are met: Engine switch on (IG) or electric parking brake switch assembly pushed to lock side with engine switch off. Parking brake ECU assembly power source relay is shorted for approximately 60 seconds.	Wire harness or connector Electric parking brake switch assembly Parking brake ECU assembly	Yes	An electric parking brake system malfunction is displayed on the multi-information display.