Toyota Corolla Cross: Transponder Key Ecu

 ACC Circuit Short to Ground (B227411)

DESCRIPTION This DTC is stored when a malfunction in the ACC output circuit is detected. The ACC output circuit is the circuit between terminal ACCD of the certification ECU (smart key ECU assembly) and the ACC relay. DTC No. Detection Item DTC Detection Condition Trouble Area No

 When Disconnecting Or Reconnecting Battery Terminal

Before Disconnecting Battery BEFORE DISCONNECTING BATTERY PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL (for HEV Model) Depending on the "ACC customize" setting, the background will remain started even when the ignition switch is turned off. For that