P079B · Manufacturer communications

CHRYSLER · 2026-05-27

Flash: Hybrid Control Processor (HCP) / 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): ● P0E15-00 - Hybrid-EV Battery Pack Coolant Heater A Control Performance. ● P0A44 - Drive Motor A Position Sensor 1 Circuit Overspeed. ● U0111-00 - Lost Communication With Battery Energy Control Module (BPCM). ● P1625-00 - Park Pawl System Failure. ● U0412-00 - Invalid Data Received From Battery Energy Control Module-A. ● P215B-00 - Vehicle Speed Output Shaft Speed Correlation. ● P079A-00 - Transmission Friction Element 1 Slip Detected. ● P079B-00 - Transmission Friction Element 2 Slip Detected. ● P084F-00 - Park-Neutral Switch Output…

CHRYSLER · 2026-03-10

Flash: Auxiliary Hybrid Control Processor (AHCP) / Customers **must** experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle **must** SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0E15-00 - Hybrid-EV Battery Pack Coolant Heater A Control Performance. ● P29BB-00 - Hybrid-EV Battery Pack Coolant Heater A Control Performance.** ● P0A44 - Drive Motor A Position Sensor 1 Circuit Overspeed. ● U0111-00 - Lost Communication With Battery Energy Control Module (BPCM). ● P1625-00 - Park Pawl System Failure. ● U0412-00 - Invalid Data Received From Battery Energy Control Module-A. ● P215B-00 - Vehicle Speed Output Shaft Speed Correlation. ● P079A-00 - Transmission Friction Element 1 Slip Detected. ● P079B-00 - Transmission Friction Element…

CHRYSLER · 2021-01-16

Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates This bulletin involves reprogramming the HCP and AHCP or also known as Power Inverter Module (PIM) with the latest available software. Technicians and/or customers may report the vehicle will not pass a state smog check due to permanent fault codes which will not clear. As a result, the vehicles are not eligible to be registered in certain states.Customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P2797-00 - Auxiliary Transmission Fluid Pump Performance. P0CF3-00 - Control Pilot Circuit Open. P0A44 - Drive Motor A Position Sensor 1 Circuit…