P2797 · 原廠技術資料

DODGE, JEEP · 2026-07-22

Transmission Control Module (TCM) Diagnostic Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following DTCs: ● P2797-00 - Auxiliary Transmission Fluid Pump Performance ● P1625-00 - Park Pawl System Failure NOTE: Park system still functions, no impact to park engagement. NOTE: Vehicle will not experience unintended movement. Customers may also experience one or more of the following: ● Vehicle no start due to battery discharge. ● 'Start/stop inop' message. ● 'Service Transmission' message on in Instrument Panel Cluster (IPC).

DODGE, JEEP · 2026-07-03

Service Transmission Message Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P2797-00 - Auxiliary Transmission Fluid Pump Performance. Customers may also comment on the following: ● Engine Stop-Start (ESS) does not operate. ● "Service Transmission" message displayed in the Instrument Panel Cluster (IPC). This bulletin involves inspecting and possibly replacing the transmission oil pump motor.

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. ● P06E4 - Control Module Wake-Up Circuit Performance. ● P2797-00 - Auxiliary Transmission Fluid Pump Performance. ● P07B5-00 - Park Pawl Position Sensor 1 Circuit Performance. ● P177C-00 - Park Lock-Pawl Actuator Motor Current Sensor Performance. ● P288B-00 - Park Lock-Pawl Actuator Circuit Performance. ● P0CF3-00 - Control Pilot Circuit Open (North America Only). ● P0CF4-00 - Control Pilot Circuit Performance (North America Only). ● P0D57-00 - Proximity…

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. ● P06E4 - Control Module Wake-Up Circuit Performance. ● P2797-00 - Auxiliary Transmission Fluid Pump Performance. ● P07B5-00 - Park Pawl Position Sensor 1 Circuit Performance. ● P177C-00 - Park Lock-Pawl Actuator Motor Current Sensor Performance. ● P288B-00 - Park Lock-Pawl Actuator Circuit Performance. Customers may also comment on one or more of the following: ● Vehicle does not start / engine does not crank. ● Extended engine cranking time when starting the…

CHRYSLER · 2026-04-14

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. ● P06E4 - Control Module Wake-Up Circuit Performance. ● P2797-00 - Auxiliary Transmission Fluid Pump Performance. ● P07B5-00 - Park Pawl Position Sensor 1 Circuit Performance. ● P177C-00 - Park Lock-Pawl Actuator Motor Current Sensor Performance. ● P288B-00 - Park Lock-Pawl Actuator Circuit Performance. ● P0CF3-00 - Control Pilot Circuit Open (North America Only). ● P0CF4-00 - Control Pilot Circuit Performance (North…

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.** ● P06E4 - Control Module Wake-Up Circuit Performance. ● P2797-00 - Auxiliary Transmission Fluid Pump Performance. ● P07B5-00 - Park Pawl Position Sensor 1 Circuit Performance. ● P177C-00 - Park Lock-Pawl Actuator Motor Current Sensor Performance. ● P288B-00 - Park Lock-Pawl Actuator Circuit Performance. ● P0CF3-00 - Control Pilot Circuit Open (North America Only). ● P0CF4-00 - Control Pilot Circuit…

CHRYSLER · 2026-02-25

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. ● P06E4 - Control Module Wake-Up Circuit Performance. ● P2797-00 - Auxiliary Transmission Fluid Pump Performance. ● P07B5-00 - Park Pawl Position Sensor 1 Circuit Performance. ● P177C-00 - Park Lock-Pawl Actuator Motor Current Sensor Performance. ● P288B-00 - Park Lock-Pawl Actuator Circuit Performance. Customers may also comment on one or more of the following: ● Vehicle does not start / engine does not crank. ●…

FORD · 2026-01-21

This article supersedes TSB 25-2124 to update the affected model years, customer symptom, causal part and Service Procedure enhancements. Some of the vehicles listed in the Model statement above may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble code (DTC) P2796 and/or P2797 stored in the secondary on-board diagnostic control module B (SOBDMB) and/or the secondary on-board diagnostic control module C (SOBDMC). This may be due to the software in the SOBDMB and/or the SOBDMC.

FORD · 2025-03-14

Some of the vehicles listed in the Model statement above may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble code (DTC) P2797 stored in the secondary on-board diagnostic control module B (SOBDMB) and/or the secondary on-board diagnostic control module C (SOBDMC). This may be due to the software in the SOBDMB and/or the SOBDMC.

BUICK, CHEVROLET · 2025-03-11

This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.

SUBARU · 2024-09-11

This bulletin announces availability of new reprogramming files for the Transmission Control Module (TCM) developed to address cases of DTC P2797 (Electrical/Auxiliary Transmission Fluid Pump “A” Performance/Stuck Off”).

SUBARU · 2024-08-28

This bulletin announces availability of new reprogramming files for the Transmission Control Module (TCM) developed to address cases of DTC P2797 (Electrical/Auxiliary Transmission Fluid Pump “A” Performance/Stuck Off”).

TOYOTA · 2024-06-25

Some 2023 – 2024 model year Crown and 2024 model year Grand Highlander Hybrid vehicles equipped with the PC60 hybrid transmission may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P279762 (Electromagnetic Oil Pump Component Internal Failure) present. The Transmission Control Module (TCM) logic has been modified to reduce the possibility of this condition.

CHEVROLET · 2024-06-06

This service bulletin provides diagnostic aid information for DTC P2797, P2798 or P0C2D for Transmission Fluid Pump Performance to correct a customer concern of a Propulsion Power is Reduced message on DIC combined with a Service Vehicle Soon MIL.

LEXUS · 2024-06-04

Some 2023 – 2024 model year RX 500h and 2024 model year TX 500h vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P279762 (Electromagnetic Oil Pump Component Internal Failure) present. The Transmission Control Module (TCM) logic has been modified to reduce the possibility of this condition

CHEVROLET · 2024-03-12

This service bulletin provides diagnostic aid information for DTC P2797, P2798 or P0C2D for Transmission Fluid Pump Performance to correct a customer concern of a Propulsion Power is Reduced message on DIC combined with a Service Vehicle Soon MIL.

SUBARU · 2023-12-04

This bulletin announces availability of new reprogramming files for the Transmission Control Module (TCM) developed to address cases of DTC P2797 (Electrical/Auxiliary Transmission Fluid Pump “A” Performance/Stuck Off”).

SUBARU · 2023-11-20

This bulletin announces availability of new reprogramming files for the Transmission Control Module (TCM) developed to address cases of DTC P2797 (Electrical/Auxiliary Transmission Fluid Pump “A” Performance/Stuck Off”).

CHEVROLET · 2023-07-28

This service bulletin provides diagnostic aid information for DTC P2797, P2798 or P0C2D for Transmission Fluid Pump Performance to correct a customer concern of Propulsion Power is Reduced message on DIC combined with a Service Vehicle Soon MIL.

BUICK, CHEVROLET · 2023-04-28

This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.

CHRYSLER · 2022-05-28

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: P1AF8-00 - MCPA Control Module Shutdown Performance. P1AFE-00 - MCPB Improper Shut Down.P1AF8-00&P1AFE-00 will now be set as a 1 trip failure instead…

BUICK, CHEVROLET · 2021-03-15

This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.

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:P06E4 - Control Module Wake-Up Circuit Performance. P2797-00 - Auxiliary Transmission Fluid Pump Performance. P07B5-00 - Park Pawl Position Sensor 1…

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:P06E4 - Control Module Wake-Up Circuit Performance. P2797-00 - Auxiliary Transmission Fluid Pump Performance. P07B5-00 - Park Pawl Position Sensor 1…

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…

CHEVROLET · 2020-09-10

This technical bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.

CHEVROLET · 2020-05-29

This technical bulletin provides a procedure to replace the transmission auxiliary pump to correct a condition of start/stop inoperative, MIL illuminated w/DTC P2797.

CHEVROLET · 2020-04-06

This technical bulletin provides a procedure to replace the transmission auxiliary pump to correct a condition of start/stop inoperative, MIL illuminated w/DTC P2797.

CHEVROLET · 2019-11-15

This technical bulletin provides a procedure to replace the transmission auxiliary pump to correct a condition of start/stop inoperative, MIL illuminated w/DTC P2797.

CHEVROLET · 2019-08-23

This Preliminary information communicates to the dealer technician to replace the transmission auxiliary fluid pump if code P2797 is the only code set in the TCM of the VT-40 CVT automatic transmission along with a concern of the stop start function not working. Dealers are advised to order the transmission auxiliary fluid pump from the Warranty Parts Center.