P2201 · Herstellerinformationen

ISUZU · 2025-11-21

SERVICE BULLETIN: THE ORIGINAL CALIBRATIONS IN THE ENGINE CONTROL MODULE (ECM) AND THE DIESEL EXHAUST FLUID CONTROL UNIT (DCU) OF CERTAIN 2025MY N-DIESEL VEHICLES CONTAINED INCORRECT LOGIC THAT MAY UNNECESSARILY CAUSE DIAGNOSTIC TROUBLE CODE (DTC) P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1 TO SET AND ILLUMINATE THE MALFUNCTION INDICATOR LIGHT. THIS DTC MAY BE RESOLVED BY REPROGRAMMING BOTH ECM AND DCU WITH THE REVISED SERVICE CALIBRATIONS. FOLLOW THE DIAGNOSTIC FOR THIS DTC. IF NO MECHANICAL FAULT CAN BE FOUND DURING NORMAL DIAGNOSIS, FOLLOW THE SERVICE PROCEDURE IN THIS BULLETIN TO CORRECT THE CONCERN.

ISUZU · 2025-11-21

CUSTOMER SATISFACTION CAMPAIGN: IN SOME 2025MY ISUZU N-SERIES VEHICLES EQUIPPED WITH 5.2L (4HK1) DIESEL ENGINES, OPERATORS MAY EXPERIENCE AN ILLUMINATED CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1. WE HAVE DETERMINED A CALIBRATION ERROR IS CAUSING THIS DTC TO SET. THIS DTC MAY BE RESOLVED BY REPROGRAMMING THE ENGINE CONTROL MODULE (ECM) AND DEF CONTROL UNIT (DCU) WITH REVISED CALIBRATIONS.

ISUZU · 2025-10-08

SERVICE BULLETIN: THE ENGINE CONTROL MODULE AND THE DIESEL EXHAUST FLUID CONTROL UNIT OF CERTAIN 2025MY N-DIESEL VEHICLES CONTAINED INCORRECT LOGIC THAT MAY UNNECESSARILY CAUSE DTC P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1 TO SET AND ILLUMINATE THE MALFUNCTION INDICATOR LIGHT. THIS DTC MAY BE RESOLVED BY REPROGRAMMING BOTH ECM AND THE DCU WITH REVISED SERVICE CALIBRATIONS.

FORD · 2024-08-22

Some 2023-2024 F-Super Duty vehicles built on or before 22-Jul-2024 and equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P203B, P206B, and/or P2201:92 stored in the powertrain control module (PCM). This may be due to the software in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM using the latest software level of the Ford Diagnosis and Repair System (FDRS) scan tool.

FORD · 2024-08-22

Some 2024-2025 F-650/F-750 vehicles built on or before 22-Jul-2024 and equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P203B, P206B, and/or P2201:92 stored in the powertrain control module (PCM). This may be due to the software in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM using the latest software level of the Ford Diagnosis and Repair System (FDRS) scan tool.

HINO · 2024-08-07

We have determined that certain 2022 – 2024MY Hino S-Series vehicles equipped with 5.2L (4HK1) diesel engines and option (IE1) 4-wheel disc brakes were built with an Engine Control Module (ECM) and Diesel Exhaust Fluid Control Unit (DCU) containing an On Board Diagnostic (OBD) calibration error for Diagnostic Trouble Codes (DTC) P2201 NOx Sensor Circuit Performance Sensor 1 and P20EE Diesel Exhaust Fluid (DEF) System NOx Trap Low Efficiency.

CHEVROLET · 2024-08-07

Certain vehicles may erroneously experience an illuminated Check Engine Malfunction Indicator Lamp (MIL) with Diagnostic Trouble Codes (DTC) P2201 NOx Sensor Circuit Performance Sensor 1 and/or P20EE Diesel Exhaust Fluid (DEF) System NOx Trap Low Efficiency. Dealers will reprogram the ECM and/or the DCU with the corrected service calibrations.

ISUZU · 2024-07-22

CUSTOMER SATISFACATION CAMPAIGN_ ISUZU HAS DETERMINED THAT CERTAIN 2022 – 2024MY ISUZU N-SERIES VEHICLES EQUIPPED WITH 5.2L (4HK1) DIESEL ENGINES AND OPTION (IE1) 4-WHEEL DISC BRAKES WERE BUILT WITH AN ENGINE CONTROL MODULE (ECM) AND DIESEL EXHAUST FLUID CONTROL UNIT (DCU) CONTAINING AN ON BOARD DIAGNOSTIC (OBD) CALIBRATION ERROR FOR DIAGNOSTIC TROUBLE CODES (DTC) P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1 AND P20EE DIESEL EXHAUST FLUID (DEF) SYSTEM NOX TRAP LOW EFFICIENCY.

FORD · 2024-05-22

Some 2021-2023 F-650/F-750 vehicles built on or before 15-Nov-2022 and equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2201, P2209, P220E and/or P24FE stored in the powertrain control module (PCM). This may be due to the software in the PCM and the nitrogen oxides (NOx) sensor 11. To correct the condition, follow the Service Procedure to replace the NOx sensor 11 and reprogram the PCM and transmission control module (TCM).

FORD · 2024-05-10

Some 2020-2022 F-Super Duty vehicles built on or before 31-Oct-2022 and equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2201, P2209, P220E and/or P24FE stored in the powertrain control module (PCM). This may be due to the software in the PCM and the nitrogen oxides (NOx) sensor 11. To correct the condition, follow the Service Procedure to replace the NOx sensor 11 and reprogram the PCM and transmission control module (TCM).

FORD · 2023-11-17

Some 2024 F-650/F-750 vehicles built on or before 27-Oct-2023 and equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P060C, U1022, P0093, P01C4, U3012, P24C7, P06E9, P0364, P1942, P162E, P061A, P2201, and/or P2698 stored in the powertrain control module (PCM). This may be due to the software in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM and the transmission control module (TCM).

CHEVROLET · 2023-11-09

Customer Satisfaction Program - Certain vehicles may experience an illuminated Check Engine Malfunction Indicator Lamp (MIL) with Diagnostic Trouble Code (DTC) P2201 NOx Sensor Circuit Performance Sensor 1 and/or DTC P20EE Diesel Exhaust Fluid (DEF) System NOx Trap Low Efficiency set in the DEF Control Unit (DCU). Dealers will reprogram the diesel exhaust fluid control module with a corrected service calibration

ISUZU · 2023-11-03

IN SOME 2021MY ISUZU F-SERIES VEHICLES, OPERATORS MAY EXPERIENCE AN ILLUMINATED CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1 AND/OR DTC P20EE DIESEL EXHAUST FLUID (DEF) SYSTEM NOX TRAP LOW EFFICIENCY SET IN THE DEF CONTROL UNIT (DCU). WE HAVE DETERMINED A DCU CALIBRATION ERROR IS CAUSING THIS DTC TO SET. THEREFORE, THIS DTC MAY BE RESOLVED BY REPROGRAMMING THE DCU WITH A REVISED CALIBRATION.

FORD · 2023-09-25

Some 2023 F-Super Duty vehicles built on or before 29-Aug-2023 and equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P060C, U1022, P0093, P01C4, U3012, P24C7, P06E9, P0364, P1942, P162E, P061A, P2201, and/or P2698 stored in the powertrain control module (PCM). This may be due to the software in the PCM.

ISUZU · 2023-08-16

Supercedes SB23-L-001: The vehicle’s Check Engine Malfunction Indicator Lamp (MIL) may illuminate with DTC P2201 and/or P20EE set in the DEF Control Unit (DCU). If one or both of the preceding DTCs are present, first follow the diagnostic for the DTC(s) in question. If no mechanical fault can be found during normal diagnosis, follow the service procedure in this bulletin to correct the concern.

FORD · 2023-07-20

Some 2023 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P2201 stored in the powertrain control module (PCM). To correct the condition, refer to Workshop Manual (WSM), Section 303-08A, as Pinpoint Test (PPT) RD has been updated to improve diagnostics.

ISUZU · 2023-06-29

The vehicle's Check Engine Malfunction Indicator Lamp (MIL) may illuminate with DTC P2201 set in the DEF Control Unit (DCU). If the preceding DTC is present, first follow the diagnostic for the DTC in question. If no mechanical fault can be found during normal diagnosis, follow the service procedure in this bulletin to correct the concern.

VOLKSWAGEN · 2023-01-12

Diagnostic assistance for DTC P2201. Updated text with referral to Safety Recall 23T3.

RAM · 2022-07-20

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. P1C54 - SCR NOx Catalyst Missing. P229F - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 2. P207F - Reductant Quality Performance. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P2201 - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 1. P202E - (Diesel Exhaust Fluid) Reductant Injector Performance. P0300 - Multiple Cylinder Misfire. P0301-00 -…

RAM · 2022-07-20

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. P1C54 - SCR NOx Catalyst Missing. P229F - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 2. P207F - Reductant Quality Performance. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P2201 - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 1. P202E - (Diesel Exhaust Fluid) Reductant Injector Performance. P0300 - Multiple Cylinder Misfire. P0301-00 -…

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…

RAM · 2022-04-12

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain ControlModule (ECM/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 moreof the following DTCs have been set: P064F - Unauthorized Software/Calibration Detected. P2706 - MS Solenoid Circuit(68RFE Only). P0868 - Line Pressure Low. P229F - Aftertreatment NOxSensor Circuit Performance - Bank 1 Sensor 2. P207F - Reductant Quality Performance. P2509 - PCM/PCM Power Input Signal Intermittent. P0401 - EGR System Performance. P0870 - OD Hydraulic Pressure Test. P040B - Exhaust Gas Recirculation Temperature Sensor "A" Circuit Performance. P2201 -…

RAM · 2022-01-15

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may findthat one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P064F - Unauthorized Software/Calibration Detected. P2201 - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 1. P24C7 - Particulate Matter Sensor Temperature Circuit Performance. P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. P202E - Reductant Injector Performance. P218F - Reductant No Flow Detected. In addition, the following software enhancements are also available: Fuel filter minder improvement. Calibration changes…

FORD · 2021-09-14

This article supersedes TSB 21-2055 to update the Title, Issue, Action, vehicles affected and production fix date. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine built on or before 10-Feb-2021 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300-P0308, P0603, P203B, P208B, P208C, P20EE, P2201, P24C2, P27B4, and/or P27B5 stored in the powertrain control module (PCM). The vehicle may also exhibit a forced idle condition. This may be due to various strategies within the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM.

FORD · 2021-08-31

This program extends the coverage of the front nitrogen oxides (NOx) sensor for twelve months of service, beginning on the date the powertrain control module (PCM) is reprogrammed under emissions recall 21E01. This program oly applies if a front NOx sensor fault is detected and it is related to a diagnostic trouble code (DTC) P2201 identified after 21 E01 has bee performed.

VOLVO · 2021-08-26

Selective Catalytic Reduction ( SCR ) Efficiency And NOx Sensor Diagnostic Trouble Codes ( DTC ) P225C, P225E, P221A and P2201: NOx Sensor Diagnostic Information TO BE USED BEFORE SENSOR REPLACEMENT - OBD13 And Newer Emissions (Commonly Model Year 20

FORD · 2021-03-04

This article supersedes TSB 20-2336 to update the Title, Issue, Action, vehicles affected and production fix date. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine built on or before 10-Feb-2021 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300-P0308, P054F, P0603, P203B, P208B, P208C, P20EE, P2201, P24C2, P27B4, and/or P27B5 stored in the powertrain control module (PCM). The vehicle may also exhibit a forced idle condition. This may be due to various strategies within the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM.

RAM · 2021-02-24

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs.P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. P1C54 - SCR NOx Catalyst Missing. P229F - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 2. P207F - Reductant Quality Performance. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P2201 - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 1. P202E - (Diesel Exhaust Fluid) Reductant Injector Performance. P0300 - Multiple Cylinder Misfire. P0301-00 -…

RAM · 2021-02-24

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs.P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. P1C54 - SCR NOx Catalyst Missing. P229F - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 2. P207F - Reductant Quality Performance. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P2201 - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 1. P202E - (Diesel Exhaust Fluid) Reductant Injector Performance. P0300 - Multiple Cylinder Misfire. P0301-00 -…

VOLVO · 2021-02-05

Selective Catalytic Reduction ( SCR ) Efficiency And NOx Sensor Diagnostic Trouble Codes ( DTC ) P225C, P225E, P221A and P2201: NOx Sensor Diagnostic Information TO BE USED BEFORE SENSOR REPLACEMENT - OBD13 And Newer Emissions (Commonly Model Year 20