# U0401 on the 2015 Jeep Renegade

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.

## Bulletins for this model year that name U0401

- [10229237](https://open.wenmarpro.com/bulletins/10229237), 2023-01-09: Flash: Transmission Shift And Drivability 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. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\). ? P0711 \- Transmission Fluid Temperature Sensor A Circuit Range\-Performance ? P0887 \- TCM Power Control Circuit High ? P1CC9 \- Unable to Engage Gear ? P1D98 \- Incorrect Gear Ratio Clutch B or D Defective ? U0401 \- Implausible Data Received From ECM\-PCM
- [10223837](https://open.wenmarpro.com/bulletins/10223837), 2022-10-17: 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. Upon further investigation the technician may find the following DTCs set in the TCM memory: P061B \- Internal Control Module Torque Calculation Performance. P072F \- Stuck In Gear 4. P0711 \- Transmission Fluid Temperature Sensor A Circuit Range\-Performance \(2015 BU only\). P0887 \- TCM Power Control Circuit High \(2015 BU only\). P1CC9 \- Unable to Engage Gear \(2015 BU only\). P1D98 \- Incorrect Gear Ratio Clutch B or D Defective \(2015 BU only\). U0401 \- Implausible Data Received From ECM\-PCM \(2015 BU only\).In addition, customers may experience the following conditions: CAN Bus message may drop out after a network restart. Harsh 1\-2 Upshift. Harsh Garage Shifts \(Park to Reverse or Drive\).
- [10149677](https://open.wenmarpro.com/bulletins/10149677), 2018-12-03: Flash: Transmission Shift And Drivability 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 or describe harsh shifting. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) or symptoms. ? Harsh 1\-2 Upshift. ? Harsh Garage Shifts \(Park to Reverse or Drive\). ? P0711 \- Transmission Fluid Temperature Sensor A Circuit Range\-Performance. ? P0887 \- TCM Power Control Circuit High. ? P1CC9 \- Unable to Engage Gear. ? P1D98 \- Incorrect Gear Ratio Clutch B or D Defective. ? U0401 \- Implausible Data Received From ECM\-PCM.
- [10148914](https://open.wenmarpro.com/bulletins/10148914), 2018-11-26: Flash: Transmission Shift And Drivability 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. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\). ? P0711 \- Transmission Fluid Temperature Sensor A Circuit Range\-Performance ? P0887 \- TCM Power Control Circuit High ? P1CC9 \- Unable to Engage Gear ? P1D98 \- Incorrect Gear Ratio Clutch B or D Defective ? U0401 \- Implausible Data Received From ECM\-PCM
- [10121794](https://open.wenmarpro.com/bulletins/10121794), 2017-11-03: Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module \(TCM\) with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find one of the following DTCs have been set:P0887 \- TCM Power Control Circuit High. P061B \- Internal Control Module Torque Calculation Performance. P072F \- Stuck In Fourth Gear. P0711 \- Transmission Fluid Temperature Sensor A Circuit Range\-Performance\(2015 BU Only\). P1CC9 \- Unable to Engage Gear\(2015 BU Only\). P1D98 \- Incorrect Gear Ratio Clutch B or D Defective\(2015 BU Only\). U0401 \- Implausible Data Received From ECM\-PCM\(2015 BU Only\). In addition, customers may notice the following condition\(s\):Harsh 1\-2 upshift. Harsh garage shifts \(Park to Reverse or Drive\). CAN bus message may drop out after a network restart.