Toyota Corolla Cross: Transmitter Battery (w/ Smart Key System)

 Hybrid/EV Battery Positive and Negative Contactor Actuator Stuck Closed (P0AA073)

DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects a stuck closed malfunction of a system main relay on the positive (+) terminal side and negative (-) terminal side of the HV battery. The cause of this malfunction may be one of the following: Inverter voltage sensor (VH)

 Ignition Switch On/Start Position Circuit Low Circuit Short to Ground or Open (P253314)

DESCRIPTION When the ignition switch is turned to ON, the auxiliary battery power source is supplied to the IGP and IGR terminals of the ECM. When the ignition switch is off, the auxiliary battery power source is cut off. When the ignition switch is turned off during driving, the auxiliary battery