{"vehicle":{"id":"2016_ram_2500","year":2016,"make":"Ram","model":"2500"},"code":"P20EE","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":7,"bulletins":[{"nhtsa_id":10230344,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-01-17","date":"2022-07-20","document_id":"1813022REVA","mfr_campaign":null,"component":"POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); FUEL SYSTEM, DIESEL","summary":"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 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. P0128 - Thermostat Rationality. P218F - Reductant No Flow Detected. U0001-00 - CAN C BUS. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P1451 - Diesel Particulate Filter System Performance. P229E - NOx Sensor Circuit - Bank 1 Sensor 2. P0218 - Transmission High Temperature Operation Activated (68RFE Only). P0868 - Line Pressure Low, MIL Action (68RFE Only). U110E - Lost Ambient Temperature Message. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). The following DTCs have been changed from a one trip fault to a two trip fault:P0421 - Catalyst 1 Efficiency Below Threshold Bank 1. P2280 - Air Flow Restriction / Leak Between Air Cleaner And MAF. P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low. P208D - (Diesel Exhaust Fluid) Reductant Pump Control Circuit High. In addition to addressing the above DTCs,","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10230344-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10230344-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10230344"},{"nhtsa_id":10230332,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-01-17","date":"2022-07-09","document_id":"1813022","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"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. P0401 - EGR System Performance. P2281 - Air Leak Between MAF and Throttle Body. P0402 - Egr Flow Excessive Detected. P0234 - Turbocharger Overboost Condition. P049D - Egr Control Position Exceeded Learning Limit. P040B - Exhaust Gas Recirculation Temperature Sensor \"A\" Circuit Performance. P064F - Unauthorized Software/Calibration Detected. 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 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. P0128 - Thermostat Rationality. P218F - Reductant No Flow Detected. U0001-00 - CAN C BUS. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P1451 - Diesel Particulate Filter System Performance. P229E - NOx Sensor Circuit - Bank 1 Sensor 2. P0218 - Transmission High Temperature Operation Activated (68RFE Only). P0868 - Line Pressure Low, MIL Action (68RFE Only). U110E - Lost Ambient Temperature Message. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10230332-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10230332-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10230332"},{"nhtsa_id":10224893,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-31","date":"2017-10-18","document_id":"9003802","mfr_campaign":null,"component":"POWER TRAIN","summary":"SCR Converter - Ammonia Trap If a customer comes in with a check engine light for P20EE and has led to replacing the SCR, please contact Dean Armstrong at (248)-944-5364. Cummins and FCA engineering is currently investigating the root cause to this condition. If you do not receive an answer or call back within 15 minutes, proceed with normal diagnostics","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10224893-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10224893-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10224893"},{"nhtsa_id":10223808,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2022-07-20","document_id":"1813022REVA","mfr_campaign":null,"component":"POWER TRAIN; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION","summary":"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 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. P0128 - Thermostat Rationality. P218F - Reductant No Flow Detected. U0001-00 - CAN C BUS. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P1451 - Diesel Particulate Filter System Performance. P229E - NOx Sensor Circuit - Bank 1 Sensor 2. P0218 - Transmission High Temperature Operation Activated (68RFE Only). P0868 - Line Pressure Low, MIL Action (68RFE Only). U110E - Lost Ambient Temperature Message. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). The following DTCs have been changed from a one trip fault to a two trip fault:P0421 - Catalyst 1 Efficiency Below Threshold Bank 1. P2280 - Air Flow Restriction / Leak Between Air Cleaner And MAF. P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10223808-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10223808-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10223808"},{"nhtsa_id":10223796,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2022-07-09","document_id":"1813022","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"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. P0401 - EGR System Performance. P2281 - Air Leak Between MAF and Throttle Body. P0402 - Egr Flow Excessive Detected. P0234 - Turbocharger Overboost Condition. P049D - Egr Control Position Exceeded Learning Limit. P040B - Exhaust Gas Recirculation Temperature Sensor \"A\" Circuit Performance. P064F - Unauthorized Software/Calibration Detected. 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 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. P0128 - Thermostat Rationality. P218F - Reductant No Flow Detected. U0001-00 - CAN C BUS. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P1451 - Diesel Particulate Filter System Performance. P229E - NOx Sensor Circuit - Bank 1 Sensor 2. P0218 - Transmission High Temperature Operation Activated (68RFE Only). P0868 - Line Pressure Low, MIL Action (68RFE Only). U110E - Lost Ambient Temperature Message. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10223796-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10223796-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10223796"},{"nhtsa_id":10220620,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2021-02-24","document_id":"1802321","mfr_campaign":null,"component":"FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; POWER TRAIN; ELECTRICAL SYSTEM; BACK OVER PREVENTION; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, DIESEL","summary":"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 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. P0401 - EGR System Performance. P0128 - Thermostat Rationality. P218F - Reductant No Flow Detected. U0001-00 - CAN C BUS. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P1451 - Diesel Particulate Filter System Performance. P229E - NOx Sensor Circuit - Bank 1 Sensor 2. P2281 - Air Leak Between MAF and Throttle Body. P0218 - Transmission High Temperature Operation Activated (68RFE Only). P0868 - Line Pressure Low, MIL Action (68RFE Only). U110E - Lost Ambient Temperature Message. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). The following Diagnostic Trouble Codes (DTCs) have been changed from a one trip fault to a two trip fault:P0421 - Catalyst 1 Efficiency Below Threshold Bank 1. P2280 - Air Flow Restriction / Leak Between Air Cleaner And MAF. P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10220620-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10220620-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10220620"},{"nhtsa_id":10188824,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-03-15","date":"2021-02-24","document_id":"18-023-21","mfr_campaign":null,"component":"POWER TRAIN","summary":"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 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. P0401 - EGR System Performance. P0128 - Thermostat Rationality. P218F - Reductant No Flow Detected. U0001-00 - CAN C BUS. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P1451 - Diesel Particulate Filter System Performance. P229E - NOx Sensor Circuit - Bank 1 Sensor 2. P2281 - Air Leak Between MAF and Throttle Body. P0218 - Transmission High Temperature Operation Activated (68RFE Only). P0868 - Line Pressure Low, MIL Action (68RFE Only). U110E - Lost Ambient Temperature Message. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). The following Diagnostic Trouble Codes (DTCs) have been changed from a one trip fault to a two trip fault:P0421 - Catalyst 1 Efficiency Below Threshold Bank 1. P2280 - Air Flow Restriction / Leak Between Air Cleaner And MAF. P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10188824-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10188824-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10188824"}],"url":"https://open.wenmarpro.com/makes/ram/2500/2016/bulletins?code=P20EE"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/ram/2500/2016/codes/P20EE","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}