08-081-25

"Flash: Battery Pack Control Module (BPCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more the following Diagnostic Trouble Codes (DTCs):
• P167B-00 - Controlled System Shutdown.
• P0CA6-00 - Hybrid/EV Battery Charging Current High. NOTE: If the following DTCs are present/active in the BPCM, Battery Pack replacement will be required. Guided Diagnostics will prompt you for the repair action if the diagnostic is present on the vehicle.
• P0AA1-00 - Hybrid/EV Battery Positive Contactor ""A"" Stuck Closed.
• P0FF8-00 - Hybrid/EV Battery Precharge Contactor Circuit ""B"" Stuck Closed.
• P0ADB-00 - Hybrid/EV Battery Positive Contactor ""A"" Control Circuit Low.
• P0AE2-00 - Hybrid/EV Battery Contactor Circuit Stuck Closed. Customers may also comment on one or more of the following:
• Wrench icon is illuminated on the Instrument Panel Cluster (IPC).
• Vehicle will not enter Drive Ready Mode.
• Battery range incorrect. This bulletin also includes the following software enhancements:
• Bootloader update to prevent battery disconnect unit damage.
• Improvements in detecting pre-existing battery disconnect unit damage.
• Charging related enhancements that may lead to DTC P0CA6 falsely setting.
• Improved battery State of Charge (SoC) accuracy in off-nominal conditions. REPAIR SUMMARY: This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then, if needed, performing a Wheel End Disconnect Position Learn routine. "