DTC C123A-14: IG1 Circuit Short to Ground or Open [08/2021 -]: Description

WARNING: This page is about a different car, the 2022 Toyota Avalon, 2021 Toyota Avalon, 2020 Toyota Avalon, and 2019 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Memory	Note
C123A-14	IG1 Circuit Short to Ground or Open	Both of following conditions are met: Power switch on (IG) When hybrid vehicle control ECU communicates with main body ECU (multiplex network body ECU) via CAN communication, IG power supply voltage is not received for approximately 15 seconds.	Wire harness and connector Parking brake ECU (brake actuator assembly)	DTC stored	An electric parking brake system malfunction is displayed on the combination meter assembly.