DTC P0A1F-94: Hybrid/EV Battery Energy Control Module Unexpected Operation [11/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Toyota Corolla Cross, 2024 Toyota Corolla Cross, and 2023 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC OUTPUT (HYBRID CONTROL)
- Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes
Result
Result Proceed to P0A1F-94 only is output. A DTCs except P0A1F-94 are output. B - Turn the ignition switch off.
Result:
A
REPLACE BATTERY ECU ASSEMBLY. Refer to REMOVAL [11/2022 - ]
Result:
B
GO TO DTC CHART (HYBRID CONTROL SYSTEM)
Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2022 - 12/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [12/2024 - ]
- Check for DTCs.