P0128 · نشرات الشركة المصنعة

RAM · 2025-06-25

Flash: Powertrain Control Module (PCM) 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): ● **P0420 - Catalyst System Efficiency Below Threshold Bank 1. ● P0430 - Catalyst System Efficiency Below Threshold Bank 2.** ● P0456 - EVAP System Small Leak. ● P06EF - Engine Restart Performance. ● P0175 - Fuel System 2/1 Rich. ● P258B - Electronic Vacuum Pump Performance. ● P0128 - Thermostat Rationality. ● C0062 - Longitudinal Acceleration Sensor. In addition, the customer may experience one or more of the following: ● **Vehicle fails emissions inspection testing due to OBD catalyst monitor readiness.** ● Engine RPM erratic and or bucking, when accelerating after slowing…

VOLVO · 2025-03-11

This is a Technical Journal: MIL and DTCs ECM P012807/P01287A. A software solution was released in version 3.4.4

RAM · 2025-01-24

"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit one or more of the following Diagnostic Trouble Codes (DTCs): ● P245D - EGR Cooler Bypass Control Circuit High. ● P02E3 - Diesel Intake Air Flow Control Circuit High. ● P0490 - EGR Control circuit High. ● P229F - Aftertreatment N0X Sensor Circuit Performance - Bank 1 Sensor 2. ● P0299 - Turbocharger Underboost. ● P242F - Diesel Particulate Filter Restriction - Ash Accumulation. ● P0128 - Thermostat Rationality. In addition, the following software enhancements are available: ● Improved troubleshooting and repair accuracy for air handling components. ● Eliminates false faults for air handling actuators. This bulletin involves reprogramming…

RAM · 2025-01-17

"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit one or more of the following Diagnostic Trouble Codes (DTCs): ● P245D - EGR Cooler Bypass Control Circuit High. ● P02E3 - Diesel Intake Air Flow Control Circuit High. ● P0490 - EGR Control circuit High. ● P229F - Aftertreatment N0X Sensor Circuit Performance - Bank 1 Sensor 2. ● P0299 - Turbocharger Underboost. ● P242F - Diesel Particulate Filter Restriction - Ash Accumulation. ● P0128 - Thermostat Rationality. In addition, the following software enhancements are available: ● Improved troubleshooting and repair accuracy for air handling components. ● Eliminates false faults for air handling actuators. This bulletin involves reprogramming…

JEEP · 2024-09-24

"Thermostat Stuck Open Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0128-00 - Termostato Elétrico - Racionalidade. Customers may also comment on one or more of the following: ● The vehicle does not have heat inside the cabin. ● The engine is running cold This bulletin involves replacing the thermostat."

JEEP · 2024-08-13

"Thermostat Stuck Open Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0128-00 - Termostato Elétrico - Racionalidade. Customers may also comment on one or more of the following: ● The vehicle does not have heat inside the cabin. ● The engine is running cold This bulletin involves replacing the thermostat."

JEEP · 2024-08-09

"Thermostat Stuck Open Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0128-00 - Termostato Elétrico - Racionalidade. Customers may also comment on one or more of the following: ● The vehicle does not have heat inside the cabin. ● The engine is running cold. This bulletin involves replacing the thermostat."

MERCEDES-BENZ, MERCEDES-MAYBACH · 2023-12-01

In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC ("MBUSA") is extending the warranty coverage on the engine thermostat (including software update) installed in certain Model Year ("MY") vehicles (with engines M176, M177, M178) listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 15 years/150,000 miles (whichever occurs first), due to the following condition: In the affected vehicles, the sealing ring in the engine thermostat could detach, causing a delay in the heating of the engine coolant. This may also cause the check engine Malfunction Indicator Lamp ("MIL") to illuminate. Please follow the work instructions added to this NCU to remedy the…

MERCEDES-BENZ · 2022-08-16

Complaint CEL on with Code P012800 "The Coolant Temperature is Below the Specified Temperature" Cause Under investigation. This is not an issue that affects drivability or performance and is not a safety concern. The vehicle remains safe to operate with this code, but the measures listed in the "Remedy" section are recommended. Remedy Due to formatting issues please see "remedy instructions" in attachments

MERCEDES-BENZ · 2022-07-13

Complaint Check engine lamp illuminated. Fault code stored P012800-The coolant temperature is below the coolant thermostat specified temperature. Cause Various possible causes Remedy 1- Update HVAC with latest software 2- Perform guided test for fault P012800 and performed repairs per XENTRY diagnosis.

MERCEDES-BENZ · 2022-07-11

Complaint Check engine light is illuminated Fault code stored P012867- The coolant temperature is below the coolant thermostat specified temperature. The signal is impermissible after an event. Cause Coolant thermostat Remedy Replace coolant thermostat with part A2542003300.

RAM · 2022-07-09

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 DTCs have been set: P064F - Unauthorized Software/Calibration Detected. P229F - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 2. P207F - Reductant Quality Performance. P249E - Closed Loop Scr Reductant Injection Control At Limit - Flow Too High. P2509 - PCM/PCM Power Input Signal Intermittent. P0128 - Thermostat Rationality. P2201 - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 1. In addition, the following software enhancements are also available:Scan Tool Fan Actuation Test…

JEEP · 2022-06-14

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P2C90 - Crankcase Ventilation System - Hose "A" Disconnected. P061A - Level 2 Torque Performance. P0607-00 - ECU Internal Performance. P2172 - High Airflow/Vacuum Leak Detected (Instantaneous Accumulation). P02EE - Cylinder 1 Injector Circuit Performance. P02EF - Cylinder 2 Injector Circuit Performance. P02F0 - Cylinder 3 Injector Circuit Performance. P02F1 - Cylinder 4 Injector Circuit Performance. P012A -…

MACK · 2022-05-20

Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14 +OBD15, Common Model Year 2016

VOLVO · 2022-05-20

Volvo Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14+OBD15, Common Model Year 2016

RAM · 2022-04-02

Flash: Powertrain Control Module (PCM) Updates RAM 1500 PickupThis bulletin applies to vehicles within the following markets/countries: North America, APAC, EMEA and LATAM. This bulletin applies to vehicles equipped with a 3.6L V6 24V VVT Etorque Engine Upgrade I (Sales Code ERG). 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: P0607 - ECU Internal Performance. P04FC - Crankcase ventilation system performance. U1817 - Lost Communication With Hybrid Powertrain Control Module On D-PT. U0074 - Dedicated Powertrain D-PT Can Bus Off. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification Test (SLVT) to determine ifa leak is present…

MACK · 2022-03-23

Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14 +OBD15, Common Model Year 2016

VOLVO · 2022-03-23

Volvo Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14+OBD15, Common Model Year 2016

BUICK, CADILLAC, CHEVROLET, GMC · 2022-03-14

This technical bulletin provides repair information to correct a customer concern of a Check Engine Lamp Illuminated in the DIC (Driver Information Center), Temperature Gauge Inaccurate, and/or Cooling Fans Continue Running after Vehicle is Turned Off, with DTC P0128 Set.

MERCEDES-BENZ · 2022-03-10

Complaint CEL on with Code P012800 "The Coolant Temperature is Below the Specified Temperature" Cause Under investigation. This is not an issue that affects drivability or performance and is not a safety concern. The vehicle remains safe to operate with this code, but the measures listed in the "Remedy" section are recommended. Remedy Run guided tests as described.

MERCEDES-BENZ, MERCEDES-MAYBACH · 2022-01-27

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2015-2017 Mercedes-Benz S-Class (222 and 217 platforms) vehicles, an erroneous activation of the Malfunction Indicator Lamp (“MIL”) may occur under certain conditions, due to engine coolant backflow. In our continuing efforts to assure the proper performance of Mercedes-Benz products and to ensure the satisfaction of our customers, the warranty for the subject vehicles is extended from the original 4 years/50,000 miles to 10 years / 120,000 miles from the vehicle’s New Vehicle Limited Warranty start date for the coolant system when repairs are required that result from a MIL due to engine coolant backflow. Under this extended warranty, the subject vehicles will be…

MERCEDES-BENZ, MERCEDES-MAYBACH · 2022-01-26

Complaint Check engine light illuminated. Fault code P012800 current or stored in MRG1AMGV8 control unit. Cause Thermostat may not close completely Remedy 1-Perform coolant warmup test via fault P012800 and save the results 2-Drain coolant through fine sieve or filter and check for debris. 3-Remove and replace coolant thermostat. Check for any debris in thermostat or connections on engine. If debris found in step 2 or 3, flush engine and take pictures of debris. 4-Refill cooling circuit and clear faults. Warm engine during test drive. Allow to cool 6 hours. 5-Repeat coolant warmup test and save results. If LI was previously applied to the vehicle open a PTSS case with the below documents. -Initial quick test -MRG1AMGV8 control unit log -Coolant warmup tests before and after repair from…

SUBARU · 2021-07-28

This bulletin announces the availability of NEW reprogramming files to correct DTC P0128.

FORD · 2021-06-02

Some 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) and/or Engine Coolant Over Temperature warning with diagnostic trouble codes (DTCs) P0116, P0117, P0118, P0119, P0128, P0217, P0330, P1026, and/or P1299. This condition may be caused by an intermittent drop in the engine coolant temperature (ECT) voltage. To correct this condition, replace the heater hose with the new relocated ECT and install a jumper harness.

CHRYSLER, DODGE, JEEP, RAM · 2021-05-24

Customer complains of a MIL-on condition. Upon further inspection, there is a Diagnostic Trouble Code (DTC) P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) set in the PCM.

JEEP · 2021-04-15

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 DTCs have been set:P02EE - Cylinder 1 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02EF - Cylinder 2 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F0 - Cylinder 3 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F1 - Cylinder 4 Injector Circuit Performance(APAC, EMEA and LATAM Only). P012A - Turbocharger/Supercharger Inlet Pressure Sensor 1(APAC, EMEA and LATAM Only). P012C - Turbocharger/Supercharger Inlet Air Pressure Sensor 1 Circuit Low(APAC, EMEA and LATAM Only).…

JEEP · 2021-04-15

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 DTCs have been set:P02EE - Cylinder 1 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02EF - Cylinder 2 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F0 - Cylinder 3 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F1 - Cylinder 4 Injector Circuit Performance(APAC, EMEA and LATAM Only). P2C90 - Crankcase Ventilation System - Hose "A" Disconnected(APAC, EMEA and LATAM Only). P04FC - Crankcase Ventilation System Performance(APAC, EMEA and LATAM Only). P2453 - Particulate…

JEEP · 2021-04-15

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 DTCs have been set:P02EE - Cylinder 1 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02EF - Cylinder 2 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F0 - Cylinder 3 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F1 - Cylinder 4 Injector Circuit Performance(APAC, EMEA and LATAM Only). P012A - Turbocharger/Supercharger Inlet Pressure Sensor 1(APAC, EMEA and LATAM Only). P012C - Turbocharger/Supercharger Inlet Air Pressure Sensor 1 Circuit Low(APAC, EMEA and LATAM Only).…

NISSAN · 2021-03-02

MIL ON WITH DTC P0128 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

NISSAN · 2021-01-25

MIL ON WITH DTC P0128 STORED IF YOU CONFIRM The MIL is ON and DTC P0128 (THERMSTAT FNCTN) is stored in the ECM, AND There are no drivability concerns. ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable.