U0401 on the 2015 Jeep Cherokee
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 21-015-16 | 2022-08-22. Service bulletin. Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory. 2015 KL Vehicles · **P0887-00 - TCM Power Control Circuit High. · P061B-00 - Internal Control Module Torque Calculation Performance.** · U0401-00 - Implausible Data Received From ECM/PCM. · P1DAD- 00 - Input Shaft-Output Shaft Direction Correlation. · P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6/ED8). Other enhancements included in this update: · **Garage shift improvements. · Shift improvements for 2-1 shift quality when using Electronic Range Sensor (ERS) function for 2-1 downshift and 3-1 shift quality (bump) when coasting to a stop (ED6/ED8).** · When driving on grades, the 3-2 downshift is hard to achieve or not available. 2015 UF Vehicles · **P0887-00 - TCM Power Control Circuit High. · P072F-00 - Stuck In Gear 4 · P061B-00 - Internal Control Module Torque Calculation Performance.** · P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance |
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| 21-021-15 REV. E | 2022-08-08. Service bulletin. Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory. 2015 KL Vehicles ? When driving on grades, the 3-2 downshift is hard to achieve or not available (ED6). ? P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6). ? P0887-00 - TCM Power Control Circuit High. ? U0401-00 - Implausible Data Received From ECM/PCM. ? P1DAD-00 - Input Shaft-Output Shaft Direction Correlation. 2015 UF Vehicles ? When driving on grades, the 3-2 downshift is hard to achieve or not available (ED6). ? P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6). ? P0885-00 - TCM Power Control Circuit (ED6). ? P0975-00 - Shift Solenoid B Control Circuit Performance (ED6). ? P0887-00 - TCM Power Control Circuit High (ED6). ? P0978-00 - Shift Solenoid 3 Control Circuit Performance (ED6). ? P0981-00 - Shift Solenoid 4 Control Circuit Performance (ED6). ? P0984-00 - Shift Solenoid 5 Control Circuit Performance (ED6). ? P1634-00 - TCM Internal Watchdog Performance (ERB). ? U0401-00 - Implausible Data Received From ECM/PCM. ? P1DAD-00 - Input Shaft-Output Shaft Direction Correlation. ? Garage shift improvements. Any shifting combination into or out of, Park, Drive, Reverse or Neutral (shifting at little or no vehicle speed). ? Up shift improvements, 2-3, 3-4 or 4-5 (ERB). This TCM calibration update being released also enables the new wiTECH based ?Transmission Quick Learn? procedure to be performed anytime the transmission adaptation memory cells are cleared or when addressing customer concerns of poor shift quality. It is also being rel |
| 21-021-15 REV. E | 2022-07-25. Service bulletin. Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory. 2015 KL Vehicles ? When driving on grades, the 3-2 downshift is hard to achieve or not available (ED6). ? P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6). ? P0887-00 - TCM Power Control Circuit High. ? U0401-00 - Implausible Data Received From ECM/PCM. ? P1DAD-00 - Input Shaft-Output Shaft Direction Correlation. 2015 UF Vehicles ? When driving on grades, the 3-2 downshift is hard to achieve or not available (ED6). ? P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6). ? P0885-00 - TCM Power Control Circuit (ED6). ? P0975-00 - Shift Solenoid B Control Circuit Performance (ED6). ? P0887-00 - TCM Power Control Circuit High (ED6). ? P0978-00 - Shift Solenoid 3 Control Circuit Performance (ED6). ? P0981-00 - Shift Solenoid 4 Control Circuit Performance (ED6). ? P0984-00 - Shift Solenoid 5 Control Circuit Performance (ED6). ? P1634-00 - TCM Internal Watchdog Performance (ERB). ? U0401-00 - Implausible Data Received From ECM/PCM. ? P1DAD-00 - Input Shaft-Output Shaft Direction Correlation. ? Garage shift improvements. Any shifting combination into or out of, Park, Drive, Reverse or Neutral (shifting at little or no vehicle speed). ? Up shift improvements, 2-3, 3-4 or 4-5 (ERB). This TCM calibration update being released also enables the new wiTECH based ?Transmission Quick Learn? procedure to be performed anytime the transmission adaptation memory cells are cleared or when addressing customer concerns of poor shift quality. It is also being rel |
| 21-021-15 REV-E | 2018-12-17. Service bulletin. Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory. 2015 KL Vehicles ? When driving on grades, the 3-2 downshift is hard to achieve or not available (ED6). ? P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6). ? P0887-00 - TCM Power Control Circuit High. ? U0401-00 - Implausible Data Received From ECM/PCM. ? P1DAD-00 - Input Shaft-Output Shaft Direction Correlation. 2015 UF Vehicles ? When driving on grades, the 3-2 downshift is hard to achieve or not available (ED6). ? P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6). ? P0885-00 - TCM Power Control Circuit (ED6). ? P0975-00 - Shift Solenoid B Control Circuit Performance (ED6). ? P0887-00 - TCM Power Control Circuit High (ED6). ? P0978-00 - Shift Solenoid 3 Control Circuit Performance (ED6). ? P0981-00 - Shift Solenoid 4 Control Circuit Performance (ED6). ? P0984-00 - Shift Solenoid 5 Control Circuit Performance (ED6). ? P1634-00 - TCM Internal Watchdog Performance (ERB). ? U0401-00 - Implausible Data Received From ECM/PCM. ? P1DAD-00 - Input Shaft-Output Shaft Direction Correlation. ? Garage shift improvements. Any shifting combination into or out of, Park, Drive, Reverse or Neutral (shifting at little or no vehicle speed). ? Up shift improvements, 2-3, 3-4 or 4-5 (ERB). This TCM calibration update being released also enables the new wiTECH based ?Transmission Quick Learn? procedure to be performed anytime the transmission adaptation memory cells are cleared or when addressing customer concerns of poor shift quality. It is also being rel |
| 21-021-15 REV-D | 2018-11-26. Service bulletin. Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory. 2015 KL Vehicles ? When driving on grades, the 3-2 downshift is hard to achieve or not available (ED6). ? P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6). ? P0887-00 - TCM Power Control Circuit High. ? U0401-00 - Implausible Data Received From ECM/PCM. ? P1DAD - Input Shaft-Output Shaft Direction Correlation. 2015 UF Vehicles ? P1634-00 - TCM Internal Watchdog Performance (ERB). ? Garage shift improvements. Any shifting combination into or out of, Park, Drive, Reverse or Neutral (shifting at little or no vehicle speed). ? Up shift improvements, 2-3, 3-4 or 4-5 (ERB). ? P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance. ? P0887-00 - TCM Power Control Circuit High. ? U0401-00 - Implausible Data Received From ECM/PCM. ? P1DAD - Input Shaft-Output Shaft Direction Correlation. This TCM calibration update being released also enables the new wiTECH based ?Transmission Quick Learn? procedure to be performed anytime the transmission adaptation memory cells are cleared or when addressing customer concerns of poor shift quality. It is also being released to improve transmission downshift response time during normal driving. |
| 21-021-15 REV-C | 2018-11-26. Service bulletin. Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory. 2015 KL Vehicles · **When driving on grades, the 3-2 downshift is hard to achieve or not available (ED6).** · **P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6).** · P0887-00 - TCM Power Control Circuit High. · U0401-00 - Implausible Data Received From ECM/PCM. · P1DAD - Input Shaft-Output Shaft Direction Correlation. 2015 UF Vehicles · P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance. · P0887-00 - TCM Power Control Circuit High. · U0401-00 - Implausible Data Received From ECM/PCM. · P1DAD - Input Shaft-Output Shaft Direction Correlation. This TCM calibration update being released also enables the new wiTECH based ?Transmission Quick Learn? procedure to be performed anytime the transmission adaptation memory cells are cleared or when addressing customer concerns of poor shift quality. It is also being released to improve transmission downshift response time during normal driving. |
| 21-015-16 | 2018-06-11. Service bulletin. Flash: Transmission Diagnostic And Shift Enhancements. This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory. 2015 KL Vehicles P0887-00 - TCM Power Control Circuit High. P061B-00 - Internal Control Module Torque Calculation Performance.** U0401-00 - Implausible Data Received From ECM/PCM. P1DAD- 00 - Input Shaft-Output Shaft Direction Correlation. P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6/ED8). Other enhancements included in this update: Garage shift improvements. · Shift improvements for 2-1 shift quality when using Electronic Range Sensor (ERS) function for 2-1 downshift and 3-1 shift quality (bump) when coasting to a stop (ED6/ED8). When driving on grades, the 3-2 downshift is hard to achieve or not available. 2015 UF Vehicles P0887-00 - TCM Power Control Circuit High. · P072F-00 - Stuck In Gear 4 · P061B-00 - Internal Control Module Torque Calculation Performance.** · P0711-00 - Transmission Fluid Temperature Sensor A Circuit Range-Performance (ED6,ED8,EDD or EDE). · P0885-00 - TCM Power Control Circuit (ED6,ED8,EDD or EDE). · P0975-00 - Shift Solenoid B Control Circuit Performance (ED6,ED8,EDD or EDE). · P0887-00 - TCM Power Control Circuit High (ED6,ED8,EDD or EDE). · P0978-00 - Shift Solenoid 3 Control Circuit Performance (ED6,ED8,EDD or EDE). · P0981-00 - Shift Solenoid 4 Control Circuit Performance (ED6,ED8,EDD or EDE). · P0984-00 - Shift Solenoid 5 Control Circuit Performance (ED6,ED8,EDD or EDE). · P1634-00 - TCM Internal Watchdog Performance (ERB). · U0401-00 - Implausible Data Received From ECM/PCM. · P1DAD- 00 - Input Shaft-Output Shaft Direction Corre |
| 21-019-17 REV. A | 2017-11-03. Service bulletin. Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) withthe latest available software.A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Uponfurther investigation, a technician may find one or more of the following DTCs stored in the TCM memory.2015 KL VehiclesP1634-00 - TCM Internal Watchdog Performance(Sales Codes ED6 or ED8 Only).U1412- Implausible Vehicle Speed Signal Received. U0001- Can C Bus. P0887-00- TCM Power Control Circuit High. P061B-00- Internal Control Module Torque Calculation Performance. U0401-00- Implausible Data Received From ECM/PCM. P1DAD-00- Input Shaft-Output Shaft Direction Correlation. P0711-00- Transmission Fluid Temperature Sensor A Circuit Range-Performance(ED6 or ED8 Only). In addition, some customers may experience one or more of the following conditions:When driving on grades, the 3-2 downshift is hard to achieve or not available.Other enhancements included in this update:Garage shift improvements. Shift improvements for 2-1 shift quality when using Electronic Range Sensor(ERS) function for 2-1 downshift and 3-1 shift quality (bump) when coasting to a stop(ED6 or ED8). 2015 UF VehiclesP0887-00- TCM Power Control Circuit High.P072F-00- Stuck In Gear 4.P061B-00- Internal Control Module Torque Calculation Performance.P0711-00- Transmission Fluid Temperature Sensor A Circuit Range-Performance(ED6, ED8, EDD or EDE Only).P0885-00- TCM Power Control Circuit(ED6, ED8, EDD or EDE Only). P0975-00- Shift Solenoid B Control Circuit Performance(ED6, ED8, EDD or EDE Only).P0887-00- TCM Power Control Circuit High(ED6, ED8, EDD or EDE Only). P0978-00- Shift Solenoid 3 Control Circuit Performance(ED6, ED8, EDD orEDE Only). P0981-00- Shift Solenoid 4 Control Circuit Performance(ED6, ED8, EDD orEDE Only). P0984-00- Shift Solenoid 5 Control Circuit Performance(ED6, ED8, ED |
8 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.