P1DCD · 제조사 기술 자료

RAM · 2025-10-18

Flash: Transmission Control Module (TCM) 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): ● P0827-00 - Up and Down Shift Switch Circuit Low. ● P0826-00 - Up and Down Shift Switch Circuit. ● P085F-00 - Up and Down Shift Switch Circuit Range/Performance. ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience one or more of the following: ● Vehicle stuck in default gear, and possibly stranded for many minutes. ● Rough or bumpy 2-3 power on upshifts and/or 3-2 coast down shifts. ● Vehicle enters into limp home mode. Other software improvements: ● Decreased sensitivity to DTCs P1D8A and P1D8B This bulletin involves…

RAM · 2025-10-18

Flash: Transmission Control Module (TCM) 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): ● P0827-00 - Up and Down Shift Switch Circuit Low. ● P0826-00 - Up and Down Shift Switch Circuit. ● P085F-00 - Up and Down Shift Switch Circuit Range/Performance. ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience one or more of the following: ● Vehicle stuck in default gear, and possibly stranded for many minutes. ● Rough or bumpy 2-3 power on upshifts and/or 3-2 coast down shifts. ● Vehicle enters into limp home mode. Other software improvements: ● Decreased sensitivity to DTCs P1D8A and P1D8B This bulletin involves…

RAM · 2025-09-17

Flash: Transmission Control Module (TCM) Updates *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● **P0827-00 Up and Down Shift Switch Circuit Low. ● P0826-00 Up and Down Shift Switch Circuit. ● P085F-00 Up and Down Shift Switch Circuit Range/Performance.** ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience one or more of the following: ● **Vehicle stuck in default gear, and possibly stranded for many minutes. ● Rough/bumpy 2-3 power on upshifts and/or 3-2 coast down shifts.** ● Vehicle enters into limp home mode. **Other software improvements: ● Decreased sensitivity to faults P1D8A and P1D8B.* This bulletin…

RAM · 2025-09-17

Flash: Transmission Control Module (TCM) Updates *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● **P0827-00 Up and Down Shift Switch Circuit Low. ● P0826-00 Up and Down Shift Switch Circuit. ● P085F-00 Up and Down Shift Switch Circuit Range/Performance.** ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience one or more of the following: ● **Vehicle stuck in default gear, and possibly stranded for many minutes. ● Rough/bumpy 2-3 power on upshifts and/or 3-2 coast down shifts.** ● Vehicle enters into limp home mode. **Other software improvements: ● Decreased sensitivity to faults P1D8A and P1D8B.* This bulletin…

RAM · 2025-05-09

"Flash: Transmission Control Module (TCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience the following: ● Vehicle enters into limp home mode This bulletin involves inspecting the TCM software level and possibly reprogramming the TCM with the latest available software"

RAM · 2025-04-03

" Flash: Transmission Control Module (TCM) Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience the following: ● Vehicle enters into limp home mode. This bulletin involves inspecting the TCM software level and possibly reprogramming the TCM with the latest available software."

RAM · 2025-04-02

" Flash: Transmission Control Module (TCM) Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience the following: ● Vehicle enters into limp home mode. This bulletin involves inspecting the TCM software level and possibly reprogramming the TCM with the latest available software."

RAM · 2024-09-26

"Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also comment on the following: ● Transmission randomly shifts into neutral gear while driving. NOTE: The vehicle can be reset with an ignition/key cycle from Off and then back to Start to allow the vehicle to shift normally. This bulletin involves reprogramming the TCM with the latest available software."

RAM · 2024-07-17

Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up

RAM · 2021-03-30

Transmission Oil Cooler Lines Not Fully Connected This bulletin involves inspecting the Transmission Oil Cooler (TOC) lines and reconnectingif necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic Trouble Codes (DTCs). P1D90-00 Incorrect Gear Ratio - Clutch 2 Defective. P1D91-00 Incorrect Gear Ratio - Clutch 3 Defective. P1D92-00 Incorrect Gear Ratio - Clutch 4 Defective. P1D93-00 Incorrect Gear Ratio - Clutch 5 Defective. P1D95-00 Tcm Clutch Failure Undetermined. P1B14-00 Park-By-Wire - Unintended Park Position. P1B13-00 Park-By-Wire - Unintended Out Of Park Position. P1D99-00 Incorrect Gear Ratio: Clutch B Or E Defective. P1D9A-00 Incorrect Gear Ratio: Clutch C Or D…

RAM · 2021-03-30

Transmission Oil Cooler Lines Not Fully Connected This bulletin involves inspecting the Transmission Oil Cooler (TOC) lines and reconnectingif necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic Trouble Codes (DTCs). P1D90-00 Incorrect Gear Ratio - Clutch 2 Defective. P1D91-00 Incorrect Gear Ratio - Clutch 3 Defective. P1D92-00 Incorrect Gear Ratio - Clutch 4 Defective. P1D93-00 Incorrect Gear Ratio - Clutch 5 Defective. P1D95-00 Tcm Clutch Failure Undetermined. P1B14-00 Park-By-Wire - Unintended Park Position. P1B13-00 Park-By-Wire - Unintended Out Of Park Position. P1D99-00 Incorrect Gear Ratio: Clutch B Or E Defective. P1D9A-00 Incorrect Gear Ratio: Clutch C Or D…

RAM · 2021-03-27

Transmission Oil Cooler Lines Not Fully Connected This bulletin involves inspecting the Transmission Oil Cooler (TOC) lines and reconnecting if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic Trouble Codes (DTCs). P1D90-00 Incorrect Gear Ratio - Clutch 2 Defective. P1D91-00 Incorrect Gear Ratio - Clutch 3 Defective. P1D92-00 Incorrect Gear Ratio - Clutch 4 Defective. P1D93-00 Incorrect Gear Ratio - Clutch 5 Defective. P1D95-00 Tcm Clutch Failure Undetermined. P1B14-00 Park-By-Wire - Unintended Park Position. P1B13-00 Park-By-Wire - Unintended Out Of Park Position. P1D99-00 Incorrect Gear Ratio: Clutch B Or E Defective. P1D9A-00 Incorrect Gear Ratio: Clutch C Or D…

RAM · 2021-03-27

Transmission Oil Cooler Lines Not Fully Connected This bulletin involves inspecting the Transmission Oil Cooler (TOC) lines and reconnecting if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic Trouble Codes (DTCs). P1D90-00 Incorrect Gear Ratio - Clutch 2 Defective. P1D91-00 Incorrect Gear Ratio - Clutch 3 Defective. P1D92-00 Incorrect Gear Ratio - Clutch 4 Defective. P1D93-00 Incorrect Gear Ratio - Clutch 5 Defective. P1D95-00 Tcm Clutch Failure Undetermined. P1B14-00 Park-By-Wire - Unintended Park Position. P1B13-00 Park-By-Wire - Unintended Out Of Park Position. P1D99-00 Incorrect Gear Ratio: Clutch B Or E Defective. P1D9A-00 Incorrect Gear Ratio: Clutch C Or D…

CHRYSLER · 2021-03-12

Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the 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 DTCs:P0732-00 - Gear 2 Shift Incorrect Ratio(Software Has Been Updated to Better Address This Concern). P0887-00 - TCM Power Control Circuit High. P1B13-00 - Park By Wire Unintended Out Of Park Position. P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. U0103-00 - Lost Communication With Electric Gear Shift Module. P1CC9 - Unable To Engage Gear. P1DDE-00 - Ignition Run/Start Input 1-2 Correlation. The customers may also experience the following:Harsh upshifts, 1-2,…

CHRYSLER · 2021-03-12

Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the 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 DTCs:P0732-00 - Gear 2 Shift Incorrect Ratio(Software Has Been Updated to Better Address This Concern). P0887-00 - TCM Power Control Circuit High. P1B13-00 - Park By Wire Unintended Out Of Park Position. P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. U0103-00 - Lost Communication With Electric Gear Shift Module. P1CC9 - Unable To Engage Gear. P1DDE-00 - Ignition Run/Start Input 1-2 Correlation. The customers may also experience the following:Harsh upshifts, 1-2,…

RAM · 2020-12-22

Transmission Oil Cooler Line Not Fully Connected This bulletin involves inspecting the Transmission Oil Cooler (TOC) lines and reconnectingif necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic Trouble Codes (DTCs).P1D90-00 Incorrect Gear Ratio - Clutch 2 Defective. P1D91-00 Incorrect Gear Ratio - Clutch 3 Defective. P1D92-00 Incorrect Gear Ratio - Clutch 4 Defective. P1D93-00 Incorrect Gear Ratio - Clutch 5 Defective. P1D95-00 Tcm Clutch Failure Undetermined. P1B14-00 Park-By-Wire - Unintended Park Position. P1B13-00 Park-By-Wire - Unintended Out Of Park Position. P1D99-00 Incorrect Gear Ratio: Clutch B Or E Defective. P1D9A-00 Incorrect Gear Ratio: Clutch C Or D…

CHRYSLER, DODGE · 2017-09-12

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, a technician may find the following Diagnostic Trouble Codes (DTCs) have been set. This software update will also address some symptom/conditions listed below:3.6L Engine (Sales Code ERB) with 845RE Transmission (Sales Code DFL):During a Flash Over The Air (FOTA) radio update, the transmission shift points will default to higher shift points. The transmission will shift at high engine Revolutions Per Minute (RPM) and 7th and 8th gears may be blocked (LA and LD). Improved shift quality. P1DCD - TCM Monitoring Processor…

JEEP · 2017-08-17

Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory:P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. In addition, customers may also experience the following condition:During an engine limp mode condition, the transmission remains in a fixed gear. This update allows transmission gear shifting while in limp-in mode, rather than a fixed gear. Bumps on 2-1 and 6-5 down-shift while braking. This software update also includes the following enhancements:Updated…

JEEP · 2017-06-17

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 the following DTCs have been set:P0810-00 - Clutch Position Control Error - (Sales Codes EHK). P0887-00 - TCM Power Control Circuit High. U1424-00 - Implausible Engine Torque Signal Received. P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Some customers may experience the following conditions:During a limp mode condition, the transmission remains in a fixed gear. 5-4 downshift hesitation. A longer than normal delay during a shift from reverse to drive selection. In…

CHRYSLER · 2017-06-17

Flash: Transmission Shift and Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory:P1B13-00 - Park by Wire Unintended Out Of Park Position. P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. U0103-00 - Lost Communication With Electric Gear Shift Module. P1CC9 - Unable To Engage Gear. P1DDE-00 - Ignition Run/Start Input 1-2 Correlation. The following improvement is also included in this update:Shifter interlocking improvement in an event of brake signal loss to the TCM.

JEEP · 2017-06-09

Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory:P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. In addition, customers may also experience the following condition:During an engine limp mode condition, the transmission remains in a fixed gear. This update allows transmission gear shifting while in limp-in mode, rather than a fixed gear. Bumps on 2-1 and 6-5 down-shift while braking. This software update also includes an enhancement:Improved 5-4…

JEEP · 2016-11-29

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 the following Diagnostic Trouble Code (DTC) have been set: P1DCD-00-TCM Monitoring Processor Performance Multiple Clutches Locked Up.Some customers may experience the following condition: A longer than normal delay during a shift from reverse to drive selection.

RAM · 2016-11-19

Flash: 845RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following Symptom/Condition(s) and/or a Malfunction Indicator Lamp (MIL) due to an erroneous Diagnostic Trouble Code (DTC): P1DCD - TCM monitoring processor performance multiple clutches locked up. P1B13 - Park-By-Wire unintended out of park position. P0734 - Gear 4 Shift Incorrect Ratio set in the TCM memory.In addition, customers may experience the following conditions: Bump sensation felt during engine start/stop transition on light throttle acceleration (Stop-Start Multiple VSM System Sales Code XBU equipped vehicles only). Less than desired overall downshifts during…

CHRYSLER, DODGE · 2016-06-17

Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience an erroneous Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble Code (DTC) stored in the TCM memory. 3.6L Engine (Sales Code ERB) with 845RE Transmission (Sales Code DFL): · **Improved shift quality.** · P1DCD - TCM monitoring processor performance multiple clutches locked up. · P1B13 - Park-By-Wire unintended out of park position. · P0734 - Gear 4 Shift Incorrect Ratio. 3.6L Engine (Sales Code ERB) with 8HP45 Transmission (Sales Code DFG): · **Improved shift quality.** · Harsh 2-1 downshift or bump at low…

CHRYSLER, DODGE · 2016-06-17

"FLASH: TRANSMISSION SHIFT AND DRIVABILITY ENHANCEMENTS THIS BULLETIN INVOLVES REPROGRAMMING OF THE TRANSMISSION CONTROL MODULE (TCM) WITH THE LATEST AVAILABLE SOFTWARE. A SMALL NUMBER OF CUSTOMERS MAY EXPERIENCE AN ERRONEOUS MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION. UPON FURTHER INVESTIGATION, THE TECHNICIAN MAY FIND A DIAGNOSTIC TROUBLE CODE (DTC) STORED IN THE TCM MEMORY. 3.6L ENGINE (SALES CODE ERB) WITH 845RE TRANSMISSION (SALES CODE DFL): · **IMPROVED SHIFT QUALITY.** · P1DCD - TCM MONITORING PROCESSOR PERFORMANCE MULTIPLE CLUTCHES LOCKED UP. · P1B13 - PARK-BY-WIRE UNINTENDED OUT OF PARK POSITION. · P0734 - GEAR 4 SHIFT INCORRECT RATIO. 3.6L ENGINE (SALES CODE ERB) WITH 8HP45 TRANSMISSION (SALES CODE DFG): · **IMPROVED SHIFT QUALITY.** · HARSH 2-1 DOWNSHIFT OR BUMP AT LOW…

DODGE, JEEP · 2015-10-09

Flash: Transmission Shift Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience an erroneous Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble Code (DTC) stored in the TCM memory. In addition, the following TCM calibration improvements are also available for vehicles equipped with the 845RE 8 speed transmission (Sales Code DFL). These improvements are listed per engine application. 3.0L Gas Engine (Sales Code EHD) ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio. ? Improved upshift…

DODGE, JEEP · 2015-10-09

Flash: Transmission Shift Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience an erroneous Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble Code (DTC) stored in the TCM memory. In addition, the following TCM calibration improvements are also available for vehicles equipped with the 845RE 8 speed transmission (Sales Code DFL). These improvements are listed per engine application. 3.0L Gas Engine (Sales Code EHD) ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio. ? Improved upshift…

CHRYSLER, DODGE · 2015-08-21

Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience an erroneous Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble Code (DTC) stored in the TCM memory. 3.6L Engine (Sales Code ERB) with 845RE Transmission (Sales Code DFL) ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio. 3.0L Engine (Sales Code EHD) with 845RE Transmission (Sales Code DFL) ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire…

DODGE, JEEP · 2015-08-15

Flash: Transmission Shift Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience an erroneous Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble Code (DTC) stored in the TCM memory. In addition, the following TCM calibration improvements are also available for vehicles equipped with the 845RE 8 speed transmission (Sales Code DFL). These improvements are listed per engine application. 3.0L Gas Engine (Sales Code EHD) ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio. ? Improved upshift…

DODGE · 2015-08-05

Flash: 845RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following Symptom/Condition(s) and/or a Malfunction Indicator Lamp (MIL) due to an erroneous Diagnostic Trouble Code (DTC): ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio set in the TCM memory. ? Harsh or erratic 8-6 downshift during freeway driving. ? Harsh or erratic 6-4 and/or 6-3 downshift during city driving. ? Harsh or erratic upshifts while in Sport Mode. ? Less than desired downshift timing (longer time to downshift than expected). ? Less than…