HomeP0128 · Manufacturer communications

P0128 · Manufacturer communications

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

P0128 →

18-033-25

RAM

Reported code forms P0128

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): ●…

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37288

VOLVO

Reported code forms P012807 P01287A

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

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RAM

Reported code forms P0128

"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): ●…

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18-001-25

RAM

Reported code forms P0128

"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): ●…

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JEEP

Reported code forms P0128-00

"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 -…

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JEEP

Reported code forms P0128-00

"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 -…

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07-006-24

JEEP

Reported code forms P0128-00

"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 -…

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MERCEDES-BENZ, MERCEDES-MAYBACH

Reported code forms P012800

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…

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MERCEDES-BENZ

Reported code forms P012800

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…

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MERCEDES-BENZ

Reported code forms P012800

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…

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MERCEDES-BENZ

Reported code forms P012867

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…

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1813122

RAM

Reported code forms P0128

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…

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1811422

JEEP

Reported code forms P0128

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…

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KC-685

MACK

Reported code forms P0128

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

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KC-690

VOLVO

Reported code forms P0128

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

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1807022

RAM

Reported code forms P0128

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…

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KC-685

MACK

Reported code forms P0128

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

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KC-690

VOLVO

Reported code forms P0128

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

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22-NA-054

BUICK, CADILLAC, CHEVROLET, GMC

Reported code forms P0128

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…

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MERCEDES-BENZ

Reported code forms P012800

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…

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MERCEDES-BENZ, MERCEDES-MAYBACH

Reported code forms P012800

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…

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MERCEDES-BENZ, MERCEDES-MAYBACH

Reported code forms P012800

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…

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09-75-21

SUBARU

Reported code forms P0128

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

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TSB 21-2168

FORD

Reported code forms P0128

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,…

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S2118000009

CHRYSLER, DODGE, JEEP, RAM

Reported code forms P0128

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.

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1803721

JEEP

Reported code forms P0128

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…

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18-036-21

JEEP

Reported code forms P0128

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…

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18-037-21

JEEP

Reported code forms P0128

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…

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NTB21-006A

NISSAN

Reported code forms P0128

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.

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NTB21-006

NISSAN

Reported code forms P0128

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,…

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