T-SB-0109-24

Some 2023 – 2024 model year Corolla Hybrid vehicles that utilize a mechanical key (without a smart key) may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P0A1B1F (Generator Control Module Circuit Intermittent) present. The Hybrid Vehicle Control Computer (HV ECU) logic has been modified to reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address this condition