B12B4 · メーカー技術情報

DODGE · 2026-03-07

RSU With Additional Sleep Cycles for HV Battery Integrity Check Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B12B4-00 - Charge Status Indicator Module Internal. ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ● Loss of communication between EVCU and the Battery Pack…

DODGE · 2026-03-07

Flash: Electronic Vehicle Control Unit (EVCU) Updates 6B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ● Will not be able to start the vehicle. ● 12V battery dead resulting in no start. ● Loss of communication between…

DODGE · 2026-03-07

Flash: Electronic Vehicle Control Unit (EVCU) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B12B4-00 - Charge Status Indicator Module Internal. ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ● Loss of communication between EVCU and the Battery Pack…

JEEP · 2025-12-18

Flash: Electronic Vehicle Control Unit (EVCU) Updates 6B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● 12V battery dead resulting in no start. ● Loss of communication between EVCU and…

DODGE · 2025-12-18

RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Electronic Vehicle Control Unit (EVCU) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **B12B4-00 - Charge Status Indicator Module Internal.** ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ●…

JEEP · 2025-12-18

RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Electronic Vehicle Control Unit (EVCU) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **B12B4-00 - Charge Status Indicator Module Internal.** ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ●…

DODGE · 2025-12-18

Flash: Electronic Vehicle Control Unit (EVCU) Updates 6B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● 12V battery dead resulting in no start. ● Loss of communication between EVCU and…

DODGE · 2025-12-18

Flash: Electronic Vehicle Control Unit (EVCU) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **B12B4-00 - Charge Status Indicator Module Internal.** ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● 12V battery dead…

JEEP · 2025-12-18

Flash: Electronic Vehicle Control Unit (EVCU) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **B12B4-00 - Charge Status Indicator Module Internal.** ● C10FA-00 - Wheel Hub disconnect Actuator Performance Left. ● C10FB-00 - Wheel Hub disconnect Actuator Performance Right. ● C10F8-00 - Left Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● C10F9-00 - Right Front Wheel Hub Disconnect Actuator Position Sensor Circuit Range/Performance. ● P061B-00 - Internal Control Module Torque Calculation Performance. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● 12V battery dead…

JEEP · 2025-07-19

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mustexhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P04B5 - Fuel Fill Door Stuck Open. ● P1D83 - Implausible Engine Oil Temperature Signal Received.** ● P2450 - Fuel Tank Isolation Valve Stuck Open. ● P0032 - O2 Sensor 1/1 Heater Circuit High. ● P2097 - Downstream Fuel Trim System 1 Rich. ● P0171 - Fuel System 1/1 Lean. ● P0300 - Multiple Cylinder Misfire. ● P06E4 - Control Module Wake-Up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault.…

JEEP · 2025-05-24

"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P2450 - Fuel Tank Isolation Valve Stuck Open.** ● P0032 - O2 Sensor 1/1 Heater Circuit High. ● P2097 - Downstream Fuel Trim System 1 Rich. ● P0171 - Fuel System 1/1 Lean. ● P0300 - Multiple Cylinder Misfire. ● P06E4 - Control Module Wake-Up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. Customers may also experience one or more of the following: ● **""Service Hybrid System"" message…

JEEP · 2025-01-11

"Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P06E4 - Control Module Wake-up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. Customers may experience one or more of the following: ● Vehicle loses propulsion capability. ● 'Shift To Park' notification on. ● 'Service Transmission' warning light on. ● Requires key cycle to recover. ● Shifts rough occasionally. ● Harsh shifts when tipping in during a coast down. ● Shifts roughly during coast…

JEEP · 2024-06-20

"Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P06E4 - Control Module Wake-up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. Customers may experience one or more of the following: ● Vehicle loses propulsion capability. ● 'Shift To Park' notification on. ● 'Service Transmission' warning light on. ● Requires key cycle to recover. ● Shifts rough occasionally. ● Harsh shifts when tipping in during a coast down. ● Shifts roughly during coast…

JEEP · 2024-06-20

"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0032 - O2 Sensor 1/1 Heater Circuit High. ● P2097 - Downstream Fuel Trim System 1 Rich. ● P0171 - Fuel System 1/1 Lean. ● P0300 - Multiple Cylinder Misfire. ● P06E4 - Control Module Wake-Up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. Customers may also experience one or more of the following: ● Vehicle misfires. ● Low speed engine stall at idle. ● Difficulty shifting out of 4LO. ● Idle…

JEEP · 2024-06-08

"Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P06E4 - Control Module Wake-up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. Customers may experience one or more of the following: ● **Vehicle loses propulsion capability. ● 'Shift To Park' notification on. ● 'Service Transmission' warning light on. ● Requires key cycle to recover.** ● Shifts rough occasionally. ● Harsh shifts when tipping in during a coast down. ● Shifts roughly during…

JEEP · 2024-06-08

"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0032 - O2 Sensor 1/1 Heater Circuit High. ● P2097 - Downstream Fuel Trim System 1 Rich. ● P0171 - Fuel System 1/1 Lean. ● P0300 - Multiple Cylinder Misfire.** ● P06E4 - Control Module Wake-Up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. Customers may also experience one or more of the following: ● **Vehicle misfires. ● Low speed engine stall at idle.** ● Difficulty shifting out of 4LO. ●…

JEEP · 2024-06-08

"Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P06E4 - Control Module Wake-up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. Customers may also experience the following: ● Transmission torque calculation issues. This bulletin involves reprogramming the Powertrain Control Module (PCM), Transmission Control Module (TCM) and the AHCP also known as Power Inverter Module (PIM), with the latest…

JEEP · 2024-05-09

"Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P06E4 - Control Module Wake-up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. **Customers may experience one or more of the following: ● Shifts rough occasionally. ● Harsh shifts when tipping in during a coast down. ● Shifts roughly during coast down.** This bulletin involves reprogramming the TCM, Powertrain Control (PCM) and the Auxiliary Hybrid Control Processor (AHCP) also known as…

JEEP · 2024-05-09

"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● P06E4 - Control Module Wake-up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. **Customers may also experience one or more of the following: ● Difficulty shifting out of 4LO. ● Idle creep while in 4LO with transmission in neutral.** This bulletin involves reprogramming the PCM, Transmission Control Module (TCM) and the Auxiliary Hybrid Control Processor (AHCP) also known as Power Inverter…

JEEP · 2024-05-09

"Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● P06E4 - Control Module Wake-up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. **Customers may also experience the following: ● Transmission torque calculation issues.** This bulletin involves reprogramming the Powertrain Control Module (PCM), Transmission Control Module (TCM) and the AHCP also known as Power Inverter Module (PIM), with the…

JEEP · 2024-05-02

"Flash: Transmission Control Module (TCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● P06E4 - Control Module Wake-up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. This bulletin involves reprogramming the TCM, Powertrain Control Module (PCM) and the Auxiliary Hybrid Control Processor (AHCP) also known as Power Inverter Module (PIM), with the latest available software."