U0402 · メーカー技術情報

JEEP · 2025-10-24

The service shifter message comes on in the cluster and the lever gets stuck in park "P" and it can be present the follwoing DTC: - U11E3 - TCM Lost communication with ESM on D-PT CAN - U0103 - Lost communication with Electric Gear Shift Module - U0101- Lost communication with DTCM - U0418 - Implausible Data Received From Brake System Control Module - U0402 - Implausible data received from TCM **NOTE: Prior any shifter replacement Refer to TSB-21-016-25 2024-2025 WS - Valve Body Replacement. Recommended Diagnosis procedure: 1. Confirm if U0101 -Lost Communication with TCM or U0418 -Implausible Data Received From Brake System Control Module are present, if so check the Valve Body CAN Terminals any corrosion. 2. Check the wiring connectors between the ESM and the TCM and check voltage. 3.…

JEEP, RAM · 2025-08-15

Valve Body Replacement 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): ● U0101 - Lost Communication With The Transmission Control Module (TCM). ● U0402 - Implausible Data Received From TCM. ● U0418 - Implausible Data Received From Brake System Control Module 1. Customers may also comment on the following: ● Vehicle will go in limp-in mode. After the vehicle enters limp-in mode and has been shifted into Park, the vehicle will not shift into a forward or reverse gear This bulletin involves replacing the transmission valve body assembly.

JEEP, RAM · 2025-08-07

Valve Body Replacement 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): ● U0101 - Lost Communication With The Transmission Control Module (TCM). ● U0402 - Implausible Data Received From TCM. ● U0418 - Implausible Data Received From Brake System Control Module 1. Customers may also comment on the following: ● Vehicle will go in limp-in mode. After the vehicle enters limp-in mode and has been shifted into Park, the vehicle will not shift into a forward or reverse gear. This bulletin involves replacing the transmission valve body assembly.

JEEP · 2025-08-05

Symptoms/Condition: Shifter reports loss communication AND NO OTHER MODULES report the condition. Diagnostic: Please make sure ONLY shifter reports loss communication. If there are other modules reporting loss communication, then follow the existing service procedure Repair Procedure: 1. Verify Complaint - ESM reports a Loss of Communication (LOC) DTC, but no other modules do. - If multiple modules report the same LOC, the ESM is not the cause (its not a gateway module). 2. Read DTCs - Relevant codes: U0101, U0140, U0155, U0129, U11C3, U0402, U0422, U0423, U0415, U145D. - If multiple LOC DTCs are present: a. Check battery health, system voltage, and TCM (including valve body). b. If TCM goes offline, ESM may falsely report LOC DTCs. 3. Check Environmental Data - Look for voltage/system…

JEEP, RAM · 2025-05-18

"Valve Body Replacement 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): ● U0101 - Lost Communication With The Transmission Control Module (TCM). ● U0402 - Implausible Data Received From TCM. ● U0418 - Implausible Data Received From Brake System Control Module 1. Customers may also comment on the following: ● Vehicle will go in limp-in mode. After the vehicle enters limp-in mode and has been shifted into Park, the vehicle will not shift into a forward or reverse gear This bulletin involves replacing the transmission valve body assembly."

JEEP · 2025-02-14

"Valve Body Replacement 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): ● U0101 - Lost Communication With The Transmission Control Module (TCM). ● U0402 - Implausible Data Received From TCM. ● U0418 - Implausible Data Received From Brake System Control Module 1. Customers may also comment on the following: ● Vehicle will go in limp-in mode. After limp-in mode, once in park the vehicle will not shift in gear. This bulletin involves replacing the Transmission Valve Body."

JEEP · 2024-11-19

SHIFTER The service shifter message comes on in the cluster and the lever gets stuck in park "P" and it can be present the follwoing DTC: - U11E3 - TCM Lost communication with ESM on D-PT CAN - U0103 - Lost communication with Electric Gear Shift Module - U0101- Lost communication with DTCM - U0418 - Implausible Data Received From Brake System Control Module - U0402 - Implausible data received from TCM **NOTE: Prior any shifter replacement Refer to TSB-4582 2024-2025 WS - Valve Body Replacement. Recomended Diagnosis procedure: 1. Confirm if U0101 -Lost Communication with TCM or U0418 -Implausible Data Received From Brake System Control Module are present, if so check the Valve Body CAN Terminals any corrosion. 2. Check the wiring connectors between the ESM and the TCM and check voltage. 3.…

JEEP · 2024-05-16

"Flash: Powertrain Control Module (PCM) Enhancements **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):** ● U0402-00 - Implausible Data Received From TCM. ● U145D - Implausible Data Received From TCM On D-PT. Customers may experience one or more of the following: ● Noticeable oil life degradation when fuel and oil refresh mode active. ● Vehicle may not be able to enter electric mode driving while Fuel Oil Refresh Mode (FORM) is active. ● FORM staying on too long. Other software enhancement included with this update: ● On Board Fuel Consumption Monitoring Updates (China Only). This bulletin involves reprogramming the PCM with the latest software available. NOTE:…

RAM · 2023-09-23

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ?**P1524 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. ? P219A - Bank 1 Air-Fuel Ratio Imbalance.** ? U0402-00 Implausible Data Received from the TCM. (When U0402-00 sets in the PCM, the module will start to deny torque requests from the Transmission Control Module (TCM). The transmission will fault and go to a fixed gear limp-inreaction, and send the MIL request to PCM.) The customer may also experence the following: ? A limp mode when the DTC sets in the PCM. This bulletin involves reprogramming the PCM with the latest…

RAM · 2023-05-09

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set: ? U0402-00 - IMPLAUSIBLE DATA RECEIVED FROM TCM. When U0402-00 sets in the PCM, the module will start to deny torque requests from Transmission Control Module (TCM), the transmission will fault and go to a fixed gear limp-in reaction, and send the MIL request to PCM. The customer may also experience the following: ? A limp mode when DTC sets in the PCM. This bulletin involves reprogramming the PCM with the latest available software.

RAM · 2023-04-19

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set: ? U0402-00 - IMPLAUSIBLE DATA RECEIVED FROM TCM. When U0402-00 sets in the PCM, the module will start to deny torque requests from Transmission Control Module (TCM), the transmission will fault and go to a fixed gear limp-in reaction, and send the MIL request to PCM. The customer may also experience the following: ? A limp mode when DTC sets in the PCM. This bulletin involves reprogramming the PCM with the latest available software.

JEEP · 2023-01-26

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTC). U0402-00 - Implausible Data Received From TCM. U145D - Implausible Data Received From TCM On D-PT. Customers may experience one or more of the following: Vehicle may not be able to enter electric mode driving while Fuel Oil Refresh Mode (FORM) is active. FORM staying on too long. Other software enhancement included with this update: On Board Fuel Consumption Monitoring Updates (China Only) This bulletin involves reprogramming the PCM with the latest available software. NOTE: Additional module flashes are required for this update to be effective, the following…

RAM · 2023-01-26

Flash: Hybrid Control Processor (HCP) Updates 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) have been set: P1C64 - Hybrid Perf Engine Speed Below Target During Autostart. U0402 - Implausible Data Received From TCM. Customers may also comment on one or more of the following: During an Engine Stop/Start (ESS) event, the autostart fails and the AutoPark engages. Transmission is in Limp Mode. This bulletin involves updating the HCP with the latest available software.

JEEP · 2022-12-23

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTC). ? U0402-00 - Implausible Data Received From TCM. ? U145D - Implausible Data Received From TCM On D-PT. **Customers may experience one or more of the following: ? Vehicle may not be able to enter electric mode driving while Fuel Oil Refresh Mode (FORM) is active. ? FORM staying on too long.** Other software enhancement included with this update: ? On Board Fuel Consumption Monitoring Updates (China Only). This bulletin involves reprogramming the PCM with the latest available software. NOTE: Additional module flashes are required for this update to be effective,…

RAM · 2022-12-02

Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs have been set: U0402-00 - Implausible Data Received From TCM. P1C64 - Hybrid Perf - Engine Speed Below Target During Autostart. In addition, the following software enhancement is available: Engine Stop/Start (ESS) improvements - Improvements to make ESS more smooth/consistent. Customers may complain of rough or inconsistentautostarts. The customer may also describe one or more of the following: Coast down engine idle improvements (related to two-foot driving below 19kph (12 mph). During an ESS event, the autostart…

JEEP · 2022-05-13

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTC). U0402-00 - Implausible Data Received From TCM. U145D - Implausible Data Received From TCM On D-PT. Other software enhancement included with this update:On Board Fuel Consumption Monitoring Updates (China Only). Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Invertor Module (PIM).…

RAM · 2022-05-13

Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. 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) have been set: P1C64 - Hybrid Perf - Engine Speed Below Target During Autostart. U0402 - Implausible Data Received From TCM. The customer may also describe one or more of the following: During a Engine Stop/Start (ESS) event, the autostart fails and the AutoParkengages. Transmission is in Limp Mode.

RAM · 2022-04-05

Customer complaint may include a Mil/check engine lamp on condition. Other driveablility complaints may include, trans will not shift, stuck in gear, vehicle in limp mode, lack of power, vibration. Upon further investigation, a DTC for U0402 - Implausible Data Received From TCM may be set in the PCM.

JEEP · 2022-03-12

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTC). U0402-00 - Implausible Data Received From TCM. U145D - Implausible Data Received From TCM On D-PT. Other software enhancement included with this update:On Board Fuel Consumption Monitoring Updates (China Only). Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Invertor Module (PIM).…

JEEP · 2021-08-26

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTC). U0402-00 - Implausible Data Received From TCM. U145D - Implausible Data Received From TCM On D-PT. Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Invertor Module (PIM). Transmission Control Module (TCM). Battery Pack Control Module (BPCM). Integrated Dual Charging Module (IDCM).

RAM · 2020-09-19

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find oneor more of the following Diagnostic Trouble Codes (DTCs):P0133-00 - O2 Sensor 1/1 Slow Response. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. P050E-00 - Cold Start Engine Exhaust Temperature Too Low. U0402-00 - Implausible Data Received From TCM. P0299-00 - Turbocharger Underboost Condition. P0402-00 - EGR Flow Excessive Detected. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P208B-00 - Reductant Pump 1 Control Performance. P20C6-00 - Reductant Heater 4 Control Circuit Performance.…

RAM · 2020-08-26

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Some 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):P0133-00 - O2 Sensor 1/1 Slow Response. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. P050E-00 - Cold Start Engine Exhaust Temperature Too Low. U0402-00 - Implausible Data Received From TCM. P0299-00 - Turbocharger Underboost Condition. P0402-00 - EGR Flow Excessive Detected. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P208B-00 - Reductant Pump 1 Control Performance. P20C6-00 - Reductant Heater 4 Control Circuit Performance.…

RAM · 2020-08-26

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Some 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):P0133-00 - O2 Sensor 1/1 Slow Response. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. P050E-00 - Cold Start Engine Exhaust Temperature Too Low. U0402-00 - Implausible Data Received From TCM. P0299-00 - Turbocharger Underboost Condition. P0402-00 - EGR Flow Excessive Detected. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P208B-00 - Reductant Pump 1 Control Performance. P20C6-00 - Reductant Heater 4 Control Circuit Performance.…

JEEP · 2020-08-22

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs:P2610 - PCM Internal Engine Off Timer Performance. U1504 - Implausible Message Data Length Received From Steering Angle Sensor. U1424 - Implausible Engine Torque Signal Received DTC False Failure. P2097 - Downstream Fuel Trim System 1 Rich DTC Calibration Robustness Improvement. P2099 - Downstream Fuel Trim System 2 Rich DTC Calibration Robustness Improvement. U0402 - Implausible Data Received. B10EA - Blower Motor Control Circuit High. B10E9 - Blower Motor Control Circuit Low. P0456 - EVAP System Small…

JEEP · 2020-08-22

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs:P2610 - PCM Internal Engine Off Timer Performance. U1504 - Implausible Message Data Length Received From Steering Angle Sensor. U1424 - Implausible Engine Torque Signal Received DTC False Failure. P2097 - Downstream Fuel Trim System 1 Rich DTC Calibration Robustness Improvement. P2099 - Downstream Fuel Trim System 2 Rich DTC Calibration Robustness Improvement. U0402 - Implausible Data Received. B10EA - Blower Motor Control Circuit High. B10E9 - Blower Motor Control Circuit Low. P0456 - EVAP System Small…

JEEP · 2020-07-25

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. 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):U0402 - Implausible Data Received From TCM. P1DD2 - Torque Request Signal From TCM Denied. U1424 - Implausible Engine Torque Signal Received. P0101 - Mass Air Flow Sensor "A" Circuit Performance. U0418 - Invalid Data Received From Brake System Control Module. P0128 - Thermostat Rationality. P0703 - Brake Switch 2 Performance. P1185 - General Pressure Sensor Correlation. U1504 - Implausible Message Data Length Received From Steering Angle Sensor.…

JEEP · 2020-07-25

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. 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):U0402 - Implausible Data Received From TCM. P1DD2 - Torque Request Signal From TCM Denied. U1424 - Implausible Engine Torque Signal Received. P0101 - Mass Air Flow Sensor "A" Circuit Performance. U0418 - Invalid Data Received From Brake System Control Module. P0128 - Thermostat Rationality. P0703 - Brake Switch 2 Performance. P1185 - General Pressure Sensor Correlation. U1504 - Implausible Message Data Length Received From Steering Angle Sensor.…

JEEP · 2019-10-26

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0300-00 - Multiple Cylinder Misfire. P0301-00 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. U0402-00 - Invalid Data Received From TCM. P1DD2-00 - Torque Request Signal From TCM Denied. U1424-00 - Implausible Engine Torque Signal Received. Customers may experience excessive oil consumption between oil change intervals.In addition, the following software enhancement is available:Multiair…

JEEP · 2019-10-26

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0300-00 - Multiple Cylinder Misfire. P0301-00 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. U0402-00 - Invalid Data Received From TCM. P1DD2-00 - Torque Request Signal From TCM Denied. U1424-00 - Implausible Engine Torque Signal Received. Customers may experience excessive oil consumption between oil change intervals.In addition, the following software enhancement is available:Multiair…

LAND ROVER · 2019-05-24

A customer may be unable to select a transmission gear and/or start the engine. A 'Gearbox fault' message may also be displayed on the Instrument Cluster. Switching the ignition 'OFF' and then 'ON' clears the fault. Upon further diagnosis, a Technician may find DTC (Diagnostic Trouble Code) U0402-92 stored in the Transmission Control Switch (TCS). DTC U0402-00 [stored in the PCM (Powertrain Control Module)] and/or U0404-64 [stored in the TCM (Transmission Control Module)] may also be found.