P1D98 on the 2016 Fiat 500X
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. Its meaning is in the manufacturer's service information.
| 2102415-1 | 2023-01-09. Service bulletin. 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 ? P1CC9 - Unable to Engage Gear ? P1D98 - Incorrect Gear Ratio Clutch B or D Defective ? P1DAD - Input Shaft-Output Shaft Direction Correlation ? U1424 - Implausible Engine Torque Signal Received In addition, the customer may also experience one or more of the following transmission related conditions: ? Less than desired 1-2 upshift on tip-in acceleration. ? Less than desired accelerator pedal response in Sport and TractionPlus modes. ? RPM flare at engine start. ? Less than desired idle performance when shifting into DRIVE or REVERSE following a cold start. |
|---|---|
| 2103116 | 2022-10-17. 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. 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). |
| 21-024-15 REV D | 2019-05-20. Service bulletin. 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. ? P1CC9 - Unable to Engage Gear. ? P1D98 - Incorrect Gear Ratio Clutch B or D Defective. ? P1DAD - Input Shaft-Output Shaft Direction Correlation. ? U1424 - Implausible Engine Torque Signal Received. In addition, the customer may also experience one or more of the following transmission related conditions: ? Garage Shifts (Shifting from Park or Neutral into Drive or Reverse). ? Harsh 1-2 upshifts. ? Less than desired accelerator pedal response in Sport and Traction Plus modes. ? RPM flare at engine start. ? Less than desired idle performance when shifting into DRIVE or REVERSE following a cold start. The following enhancements are included in the software update: ? Vehicle performance enhancements. ? Improve transmission shift enhancements for sand and snow mode. ? Improved paddle shifter operation. |
| 21-024-15 REV C | 2019-05-20. Service bulletin. 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. ? P1CC9 - Unable to Engage Gear. ? P1D98 - Incorrect Gear Ratio Clutch B or D Defective. ? P1DAD - Input Shaft-Output Shaft Direction Correlation. ? U1424 - Implausible Engine Torque Signal Received. In addition, the customer may also experience one or more of the following transmission related conditions: ? Garage Shifts (Shifting from Park or Neutral into Drive or Reverse). ? Harsh 1-2 upshifts. ? Less than desired accelerator pedal response in Sport and TractionPlus modes. ? RPM flare at engine start. ? Less than desired idle performance when shifting into DRIVE or REVERSE following a cold start. The following enhancements are included in the software update: ? Improved paddle shifter operation. ? Improve transmission shift enhancements for sand and snow mode. |
| 08-010-16 | 2017-11-03. Service bulletin. Flash: Diagnostic And System Improvements This bulletin involves updating the Body Control Module (BCM), Powertrain Control Module (PCM), Transmission Control Module (TCM) with the latest available software. All three modules must be updated in this service action. 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. · P1CC9 - Unable to Engage Gear. · P1D98 - Incorrect Gear Ratio Clutch B or D Defective. · P1DAD - Input Shaft-Output Shaft Direction Correlation. · U1424 - Implausible Engine Torque Signal Received. In addition, the customer may also experience one or more of the following transmission related conditions: · Garage Shifts (Shifting from Park or Neutral into Drive or Reverse). · Harsh 1-2 upshifts. · Less than desired accelerator pedal response in Sport and Traction Plus modes. · RPM flare at engine start. · Less than desired idle performance when shifting into DRIVE or REVERSE following a cold start. The following enhancements are included in the software update: · Vehicle performance enhancements. · Improve transmission shift enhancements for sand and snow mode. · Improved paddle shifter operation. Body Control Module (BCM) A customer may describe that the remote key is not recognized and doesn't open/close door locks. In some cases the engine may not start due to the fact that a valid key is not recognized. Upon further investigation the technician may find the Diagnostic Trouble Codes (DTCs): · B105A-64 - Doors Lock All-Signal Plausibility Failure. · B105D-64 - Doors Deadlock Or Unlock Driver-Signal Plausibility Failure. |
| 21-042-17 | 2017-11-03. Service bulletin. 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. |
6 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.