# U1424 on the 2017 Dodge Challenger 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. This code is specific to a manufacturer and is not described here. ## Bulletins for this model year that name U1424 - [10224762](https://open.wenmarpro.com/bulletins/10224762), 2022-10-24: 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 that one of the following Diagnostic Trouble Codes \(DTCs\) have been set: U1424\-00 \- Implausible Engine Torque Signal Received. P1DB8\-00 \- Unintended Torque Applied While in Neutral. Customers may describe the following: Poor shift quality on coast down shifts \(bumps\) \(LX and LD Only\). In addition, the following software enhancement is available: Improved transmission shifting during a limp mode. - [10221892](https://open.wenmarpro.com/bulletins/10221892), 2022-09-26: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with updated software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code \(DTC\) set in the PCM memory:U1424\-00 \- Implausible Engine Torque Signal Received. In addition, the customer may notice:An unpleasant odor in the vehicle under certain extreme ambient conditions\(LD vehicles with Sales Codes EZH with Police Group \(Sales Code AHB\) or Special Service Group \(Sales Code AHV\)\). The following software enhancements are also available:Reverse gear lock\-out change from 16 kph \(10 mph\) to 4.8 kph \(3 mph\)\(Sales Code EZC with DEC\). Change to purge vapor control calibration\(Sales Code EZH with DGJ\). Oxygen sensor \(O2\) feedback control changes to improve 3rd gear tip in oscillation at high load\(Sales Code EZH with DFK\). Calibration update to allow the throttle body to be cycled while the engine is off, for diagnostic purposes. Improved transmission shifting during a limp mode. - [10217554](https://open.wenmarpro.com/bulletins/10217554), 2022-08-08: 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 Diagnostic Trouble Codes \(DTCs\) set in the TCM memory: P1DB8\-00 \- Unintended Torque Applied While In Neutral. U1424\-00 \- Implausible Engine Torque Signal Received.In addition to the above DTCs, this software release also includes: Improved transmission shifting during a limp mode. - [10217553](https://open.wenmarpro.com/bulletins/10217553), 2022-08-08: Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) 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 Diagnostic Trouble Code \(DTC\) set in the PCM memory: U1424\-00 \- Implausible Engine Torque Signal Received.In addition to the above DTC, this software release also includes: Update Throttle Position Sensor \(TPS\) relation to the Accelerator Pedal Position \(APP\) sensor to fix ?Electronic Throttle Control \(ETC\) pedal follower test? within wiTECH which is not functional on some vehicles. Normal engine running throttle control is not impacted by this update. Improved transmission shifting during a limp mode. - [10180282](https://open.wenmarpro.com/bulletins/10180282), 2020-09-28: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with updated software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code \(DTC\) set in the PCM memory:U1424\-00 \- Implausible Engine Torque Signal Received. In addition, the customer may notice:An unpleasant odor in the vehicle under certain extreme ambient conditions\(LD vehicles with Sales Codes EZH with Police Group \(Sales Code AHB\) or Special Service Group \(Sales Code AHV\)\). The following software enhancements are also available:Reverse gear lock\-out change from 16 kph \(10 mph\) to 4.8 kph \(3 mph\)\(Sales Code EZC with DEC\). Change to purge vapor control calibration\(Sales Code EZH with DGJ\). Oxygen sensor \(O2\) feedback control changes to improve 3rd gear tip in oscillation at high load\(Sales Code EZH with DFK\). Calibration update to allow the throttle body to be cycled while the engine is off, for diagnostic purposes. Improved transmission shifting during a limp mode. - [10140022](https://open.wenmarpro.com/bulletins/10140022), 2018-06-11: 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 Diagnostic Trouble Codes \(DTCs\) set in the TCM memory: P1DB8\-00 \- Unintended Torque Applied While In Neutral. U1424\-00 \- Implausible Engine Torque Signal Received.In addition to the above DTCs, this software release also includes: Improved transmission shifting during a limp mode. - [10140021](https://open.wenmarpro.com/bulletins/10140021), 2018-06-11: Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) 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 Diagnostic Trouble Code \(DTC\) set in the PCM memory: U1424\-00 \- Implausible Engine Torque Signal Received.In addition to the above DTC, this software release also includes: Update Throttle Position Sensor \(TPS\) relation to the Accelerator Pedal Position \(APP\) sensor to fix ?Electronic Throttle Control \(ETC\) pedal follower test? within wiTECH which is not functional on some vehicles. Normal engine running throttle control is not impacted by this update. Improved transmission shifting during a limp mode.