DTC P31B4-00: Extreme Hybrid/EV Battery Charging Current [09/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Toyota Corolla, 2024 Toyota Corolla, and 2023 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC OUTPUT (HV BATTERY, HYBRID CONTROL)
- Check for DTCs.
Powertrain > HV Battery > Trouble Codes
Powertrain > Hybrid Control > Trouble Codes
Result
Result Proceed to "P31B4-00" only is output. A DTCs except "P31B4-00" of hybrid battery system are output. B DTCs except "P31B4-00" of hybrid control system are output. C - Turn the ignition switch off.
Result:
A
REPLACE HYBRID VEHICLE CONTROL ECU. Refer to REMOVAL [09/2022 - ]
Result:
B
GO TO DTC CHART (HYBRID BATTERY SYSTEM). Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - ]
Result:
C
GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - ]
- Check for DTCs.