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Toyota Avalon Service & Repair Manual > Hybrid Control System: Hybrid/EV Battery Positive Contactor Circuit Stuck Closed (P0AA000)
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects a stuck closed malfunction of a system main relay on the HV battery positive (+) terminal side. The cause of this malfunction may be one of the following: Inverter voltage sensor (VH) internal circuit malfunction Voltage sens ...