Cummins code 2639

Conditions For Clearing The Fault Code. The “Reset All Faults” command in the recommended Cummins electronic service tool or equivalent can be used to clear active and inactive faults, as well as extinguish the MIL for OBD applications. Shoptalk. Possible causes of this fault code include: Malfunctioning fuel injectors. Fault Code: 2639

Bs6 poor pickupAts box dismantlinghttps://youtu.be/XHMBWwszMGwAmbient temperature sensorhttps://youtu.be/XG8L8TpNNZkUni: thanks for the info. I’ve made an appointment Monday at a local Cummins dealer to have them plug in with insite and do the DPF reset and check things out. I don’t think I can do much more without a …This fault code. This fault code can be triggered if the application is not operating at a duty cycle high enough to regenerate the aftertreatment DPF. This fault code. Skip to content. whatsapp +51955515985; [email protected]; 24/7 Customer Support;A complete list of all fault codes for Cummins ISX engines (2003 & later). ... 2639 Aftertreatment Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Least Severe Level 2646 Engine Coolant Temperature - Condition Exists11/21/2019 Exhaust Gas Recirculation (EGR) System Differential Pressure Sensor Incorrect Installation: Fault Codes 3361, 3389, 3382 and 3383 https://quickserve ...Nov 18, 2019 · Conditions For Clearing The Fault Code. The “Reset All Faults” command in the recommended Cummins electronic service tool or equivalent can be used to clear active and inactive faults, as well as extinguish the MIL for OBD applications. Shoptalk. Possible causes of this fault code include: Malfunctioning fuel injectors. Fault Code: 2639 Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 2692 PID: SPN: 3936 FMI: 2 Aftertreatment 1 Diesel Particulate Filter System- Data Erratic, Intermittent, or Incorrect Circuit Description The aftertreatment particulate matter sensor is a smart device and communicates with the engine control module (ECM) via the J1939 data link.Check if aftertreatment DPF amber lamp is active with any of the following Fault Codes 2639, 1921, or 1922. Verify from the fault snapshot (FC 2639, 1921, 1922) that engine was idling or in PTO when the fault was triggered. Fault triggered when engine speed was at …

Be the first to review “Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 2639 PID: SID 324 SPN: 3251 FMI: 15 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Least Severe Level” Cancel reply.Truck has had issues with the dpf diff pressure throwing codes 2639. ... We have a customer with a 2010 M2 business class freightliner with engine #73012266 ISC Cummins it keeps getting code 2637/2639/1921 of course when 2637 occurs it stop you from doing a roadside regen ...#1 · Dec 11, 2014. We have a 2010 ford f650 with the Cummins 6.7 engine in it, 330,000 miles. It does not have DEF but it has the DPF and a Cat. It is throwing code 2637 …The VGT actuator code 2636 stated that the actuator was inoperable because of a message interruption through the J1939 which is how the engine ECU communicates to the actuator. We went through the troubleshooting steps using the Cummins Quickserve website and checked the wiring harness. The troubleshooting tree led us to a faulty actuator.461 views 5 months ago. "How to Diagnose Fault Code 2639SI:324FMI:0 in Aftertreatment Diesel Particulate" In this video, I am noel matute an expert technician, I will guide you …Fault Codes CUMMINS GTA38 K38 K50 QSK38 QSK50/60 CM850 (97) Fault Codes CUMMINS Signature ISX QSX15 CM570 (94) Caterpillar Electronic Technician (90) Diesel Engine Software (90) ALLISON Transmission (59) Fault Codes CUMMINS ISB ISBe QSB4.5 QSB5.9 QSB6.7 ISC QSC8.3 ISL ISLe QSL9 CM850 (CM2850) (52) CUMMINS …2012 freightliner M2 106 code 1866 related to the EGR differential pressure sensor. the solution is to replace the sensor, unless the two holes that go under...Validation. Connect all components. Connect the recommended Cummins® electronic service tool or equivalent. Disable the fault code. Operate the engine within the "Conditions for Clearing the Fault Code" found in the Overview section of the troubleshooting procedure. Verify that the fault code is no longer active.

Troubleshooting tree for Fault Code 3375 or 3376 has been exhausted with no fault found. Ash cleaning is required at less than the recommended DPF ash cleaning interval. Reference the ISX15 CM2250 Owners Manual, Bulletin 2883360, or the ISX12/ISX11.9 CM2250 Owners Manual, Bulletin 2883443.Nov 25, 2018 · After researching your fault code with all my diag and dealer software, 3375 has to do with your after-treatment system, more specifically your DPF. Common causes for this code are: 1) DPF differential pressure sensor failure 2) Fuel rail pressure relief valve failure 3) Loose injector high-pressure connector 4) After-treatment DPF failure 5 ... Mar 22, 2022 · dpf sensor wiring diagram | delta pressure sensor wiring diagram | fault code 1922, 1921, 2639 | majoka auto tech | ajay majokaRespected Viewer,In this video... 07 international 9400i with 06 Cummins ISX cm870. Had tune-up (over head) done at cummins shop threw a 2359 code while there. They tested the turbo actuator and it was fine, they then put shop air to the air control valve and it was bad. We bought a new one and put it on.Apr 28, 2022 · If fault code 1922 is still active OR inactive with more than one counts in the last 25 operating hours, the DPF is fully clogged. Replace the DPF. Step 9: This step will only work if you use Cummins Insite (version 8.5.2 or later) or an equivalent diagnostic tool which supports the test described below.

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If your Dodge diesel is in need of a new starter, you can remove it yourself and save yourself a large repair bill. The starter motor on the diesel engine is a larger, heavy duty u...I got a kW truck with a cummins ism cm876 with an active 2639 code (esn 35221436), and its saying dpf diff pressure - Answered by a verified Technician. ... I am having trouble with code 2639 returning after I have completed 4 parked regens. I have replaced the dpf psi sensor. I have replaced doc temp sensor. Just select your engine to see descriptions of each fault code for your particular Cummins ECM. ISB Codes - Truck Application (Non - Dodge / Chrysler) ISB Codes - Dodge Cummins Applications. ISC & ISL Fault Codes- CAPS Fuel System (before 2003) ISC & ISL Fault Codes- HPCR Fuel System (2003 and later) ISM Codes - Engines before 2002 (no EGR ... 2016 freightliner Vin : 1fvacvdu1hhhz1827. Active Codes 3375 1691 2639. Reoccurring codes. Dpf scr doc professionally cleaned. Went to dealer - they suggested cleaning system. Still have codes. Please … read more

when we talked to the customer about this truck and he mentioned that the truck lacked power we immediately hooked up the computer and retrieved only one cod...The purpose of the Uniform Commercial Code (UCC) is to provide a set of consistent regulation for the sale of goods and other related transactions. This is especially important in ...Cummins ISB6.7 CM2150 (2007-09) Fault Code: 2639 PID: SID 324 SPN: 3251 FMI: 0 Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid But Above Normal Operating Range – Least Severe Level. The soot load of the aftertreatment diesel particulate filter has exceeded the recommended limits.11/21/2019 Exhaust Gas Recirculation (EGR) System Differential Pressure Sensor Incorrect Installation: Fault Codes 3361, 3389, 3382 and 3383 https://quickserve ...Some Netflix-enabled devices require an activation code in order to link your account. We cover what that means and how you can begin binge watching right now By Jason Cipriani Net...5 Cummins Engine diesel fuel system TSB (Bulletin TSB140105) Bulletin Date: Feb. 2, 2015. Component: Diesel fuel system. Bulletin Summary: Cummins: fault codes 1883, 1921,1922. 1981,2639, 3135, 3168, are caused by incorrect after treatment. Dpf sensor installed in incorrect orientation. Vehicles covered in this TSB:Fault Codes CUMMINS GTA38 K38 K50 QSK38 QSK50/60 CM850 (97) Fault Codes CUMMINS Signature ISX QSX15 CM570 (94) Caterpillar Electronic Technician (90) Diesel Engine Software (90) ALLISON Transmission (59) Fault Codes CUMMINS ISB ISBe QSB4.5 QSB5.9 QSB6.7 ISC QSC8.3 ISL ISLe QSL9 CM850 (CM2850) (52) CUMMINS …If your Dodge diesel is in need of a new starter, you can remove it yourself and save yourself a large repair bill. The starter motor on the diesel engine is a larger, heavy duty u...Be the first to review “Cummins ISX15 CM2250 (2010-12) Fault Code: 2639 (BCL) PID: SID 324 SPN: 3251 FMI: 15 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Least Severe Level” Cancel replyCODES: Fault Code: 1981. PID (P), SID (S): S324. SPN: 3936. FMI: 0/15. Lamp: Amber. REASON: Aftertreatment Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Least Severe Level. The aftertreatment differential pressure has exceeded the. maximum operating limits or the diesel particulate filter is plugged.Cummins isb 6.7 has code 1922 and 3383 on Cummins insite. Engine serial number 74079873. I need help diagnosing this code. ... 3383, 2962, 3382, 2961, 2639, 1921 and 3488 ...11/21/2019 Exhaust Gas Recirculation (EGR) System Differential Pressure Sensor Incorrect Installation: Fault Codes 3361, 3389, 3382 and 3383 https://quickserve ...

QuickServe Online contains parts and service information for over 15 million Cummins engine serial numbers. Discover What Every Cummins Service Shop Already Knows. Parts content and service documents available by engine serial number or engine family. QuickServe Online is your complete reference for Cummins parts and service information on the ...

Cummins B6.7 active fault code 3383 EGR system data valid but above normal operating range. Regen system disabled, resulting in DPF differential pressure and high soot load when the truck won’t regen on its own. EGR valve & differential pressure sensor replaced, pulled intake horn and checked grid heater screen for blockage, check ...You'll learn about the common causes of the code and how to troubleshoot the issue, so you can get your diesel vehicle back on the road in no time. "How to Diagnose Fault Code 2639SI:324FMI:0 in...Complete overview of the Cummins ISB 6.7L engine. Includes fault codes, diagnostic information, and more. ... Fault Code 1877 Aftertreatment Exhaust gas Temperature 3 Circuit – Voltage Below Normal or Shorted to Low Source. ... Fault Code 2639I have an active code of 3375 on ISX engine with in active codes 3383, 6263 which has nothing to do with it, 2639, 1921, 2754. I tried to region truck and the aftertreatment injector would not turn on … read moreP0341-camshaft Position Sensor Performance - Bank 1 Sensor 1. P0381-wait To Start Lamp Inoperative. P0400-egr System Flow Mali Function. P0401-egr System Performance. P0402-egr Flow Excessive Detected. P0403-egr Control Circuit/open. P0404-egr Position Sensor Performance (diesel) P0405-egr Position Sensor Circuit Low.Well the 2639 is a dpf diff pressure critically high fault. This has to be reset with insite. It could possibly be plugged up. This may be what is causing your engine to …Dec 11, 2023 · 2017 IC Bus vin: ***** with ISB Cummins esn: 73892436 two active codes 1922 and 3342 with several inactive codes 1866, 3312, 4612, 3383, 2962, 3382, 2961, 2639, 1921 and 3488 … read more Nich M. Check if aftertreatment DPF amber lamp is active with any of the following Fault Codes 2639, 1921, or 1922. Verify from the fault snapshot (FC 2639, 1921, 1922) that engine was idling or in PTO when the fault was triggered. Fault triggered when engine speed was at or below 1200 rpm.Messages sent from OEM VECUs or transmission ECUs are received by the Cummins® ECM and used for controlling the engine. The Cummins® ECM and OEM VECU(s) must ... Fault Code: 6339 PID: SPN: 96 FMI: 9 Fuel Level 1- Abnormal Update Rate. Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 6339 PID: SPN: 96 FMI: 9 Fuel Level 1- …

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2016 International with Cummins ISB 6.7 engine: Codes 1866, 3382, 4616. Cleaned DPF filter, replaced EGR valve, replaced EGR differential sensor. ... Active codes of 2639 Regen. above normal, least severe. And 1896 EGR out of calibration. I cannot do a manual regen I'm assuming because of the EGR code ...Be the first to review “Cummins ISB6.7 CM2350 (2013-17) Fault Code: 2639 PID: SID 324 SPN: 3251 FMI: 15 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Least Severe Level” Cancel replyMar 17, 2015 · I have an active code of 3375 on ISX engine with in active codes 3383, 6263 which has nothing to do with it, 2639, 1921, 2754. I tried to region truck and the aftertreatment injector would not turn on … read more In most cases, the fix for a P2609 code is simply to flash or replace the PCM. Re-install the blower motor. A blower motor is responsible for supplying air to the engine’s combustion chamber. The P2609 code indicates if there is a problem with the blower motor circuit. Replacing the blower motor is the best way to fix this problem.Who writes and enforces the U.S. tax code? Read about who writes and enforces the tax laws in the United States. Advertisement If you think that tax forms are unnecessarily complic...2014 6.7 cummins. Has code 4713. While monitoring fuel rail pressure: when engine running max fuel rail pressure at 8k - Answered by a verified TechnicianCummins M-11 engines offer a horsepower of 330 to 440. These engines also come with 1250 to 1350 lb-ft of torque. The M series engine by Cummins is an inline-six diesel engine. The...Getting a Cummins Engine out of a PCM Prohibited DPF Regen Lockout.P. pushbroom. 156 posts · Joined 2011. #2 · Jul 26, 2013. I used a couple 871 serial numbers I have kicking around on Quickserve. 4283 comes up as after treatment doser data valid but below normal operating range. Repair is to perform a flow test then clean / replace doser. ….

2010 Freightliner m2 106 6.7 cummins 1 Active code code 1921 sid 324, 0, 16, spn 3251 Had a egr valve issue replaced it with temp press next to it. Checked dpf ass load said full. doc face plugged and … read moreClient called in, and he had codes 3712 & 3714 active on his Cummins ISC engine. These codes are also used with other Cummins engines, and the procedure is the same. The customer had some other codes that were active previously, and had already fixed the problem. However, the truck was still derated with the codes mentioned above and he wasn't sure how to fix it. The procedure: 1) Run the ...Dr Cummins. I have an ISX that will not regen. I have a fault code of 2639 SID324 FMI15 and SPN3251. When i try to do a - Answered by a verified Technician. By chatting and providing personal info, ... We have a problem with the 2007 Cummins ISB-260 - code is valid above norm-SID: 324 FMI: 0 volts below nor : SID: 385. FMI. 4 volts …PACCAR PX-9 CM2350 (2013-17) Fault Code:2639 PID:SID 324 SPN:3251 FMI:15 Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid But Above Normal Operating Range – Least Severe Level ... This is a maintenance procedure only and is not covered by Cummins Inc. warranty. Note: Repeated occurrences of this fault code may ...Here are all the Cummins ISX engine fault codes available for the Cummins CM871 ECM. These codes pertain to the ISX engines built between 2007 and 2010. ... 2639 Aftertreatment Particulate Filter Differential Pressure - Data Valid But Above Normal Operating Range - Least Severe Level ...Here are all the Cummins ISX engine fault codes available for the Cummins CM871 ECM. These codes pertain to the ISX engines built between 2007 and 2010. ... 2639 Aftertreatment Particulate Filter Differential Pressure - Data Valid But Above Normal Operating Range - Least Severe Level ...Mar 29, 2016 · Fault Code: 1921. PID: S324. SPN: 3251. FMI: 0/16. LAMP: Amber. SRT: Aftertreatment Diesel Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level. The soot load of the aftertreatment diesel particulate filter has exceeded the recommended limits. A damaged connection has been detected in the sensor or harness connector. Clean the connector and pins. Repair the damaged harness, connector, or pins, if possible. Guided Step 4B - Check the circuit response. Turn keyswitch OFF. Disconnect the EGR delta pressure sensor from the engine harness. Turn keyswitch ON. Cummins code 2639, CODE 1866, PID 4, FMI 2…. 10 FREIGHTLINER M2 106 6.7 CUMMINS. CODE 1866, PID 4, FMI 2 SPN 411. CLEANED OUT DIFF PRESSURE PORTS, REPLACE DIFF PRESSURE SENSOR PACKED HARD AND FULL. CLEANED UP EGR AND REPLACED GASKETS., Apr 28, 2022 · If fault code 1922 is still active OR inactive with more than one counts in the last 25 operating hours, the DPF is fully clogged. Replace the DPF. Step 9: This step will only work if you use Cummins Insite (version 8.5.2 or later) or an equivalent diagnostic tool which supports the test described below. , Truck has had issues with the dpf diff pressure throwing codes 2639. ... We have a customer with a 2010 M2 business class freightliner with engine #73012266 ISC Cummins it keeps getting code 2637/2639/1921 of course when 2637 occurs it stop you from doing a roadside regen ..., Some Netflix-enabled devices require an activation code in order to link your account. We cover what that means and how you can begin binge watching right now By Jason Cipriani Net..., Be the first to review “Cummins ISX12 CM2250 (2010-12) Fault Code: 2639 (X) PID: SID 324 SPN: 3251 FMI: 15 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Least Severe Level” Cancel reply, You'll learn about the common causes of the code and how to troubleshoot the issue, so you can get your diesel vehicle back on the road in no time. "How to Diagnose Fault Code 2639SI:324FMI:0 in..., Code breakers are people who use logic and intuition in order to uncover secret information. Learn more about code breakers and how code breakers work. Advertisement Information is..., Fault 2639 : This fault code can be triggered if the application is not operating at duty cycle high enough to regenerate the ... Cummins 6.7, OEM #3375, 3376,2639,4713., The fault code status displayed by the recommended Cummins® electronic service tool or equivalent will change to INACTIVE immediately after the diagnostic runs and passes. The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes. The “Reset All Faults” command in the recommended Cummins ..., Jul 28, 2017 · 2015 freightliner 3AKJGEBG3FSGU9922 cummins isx15. trouble shooting for these two codes. codes 3712 fmi 0 3714 fmi 31 truck is derated and are the only two codes active. the other codes inactive are, … read more , Truck has had issues with the dpf diff pressure throwing codes 2639. ... We have a customer with a 2010 M2 business class freightliner with engine #73012266 ISC Cummins it keeps getting code 2637/2639/1921 of course when 2637 occurs it stop you from doing a roadside regen ..., Verify the EGR differential pressure sensor is properly oriented and placed as removed when installed on the intake air connection. Follow the “Conditions For Clearing The …, Fault Code: 4214. PID: Not Mapped. SPN: 5018. FMI: 1/18. LAMP: Amber. SRT: Aftertreatment 1 Diesel Oxidation Catalyst System - Data Valid But Below Normal Operating Range - Moderately Severe Level. None on performance. Active aftertreatment diesel particulate filter regeneration will be disabled., Chasing down code 4151 on a Cummins and repairing., P. pushbroom. 156 posts · Joined 2011. #2 · Jul 26, 2013. I used a couple 871 serial numbers I have kicking around on Quickserve. 4283 comes up as after treatment doser data valid but below normal operating range. Repair is to perform a flow test then clean / replace doser., 2015 cummins in a f750 ,code 3251,3610,5742 ,we just had dpf filter cleaned but codes wont clear. Also put on new - Answered by a verified Technician. ... Ok all the codes are gone except this one Fault Code 2639 The check engine light is off but the regen light is on. After I did a regen last night the light went off., We are getting Fault Code 2639, once we already cleared the - Answered by a verified Technician. ... Hi I have 2013 Cummins isx with codes 1922 and 1883 active, the hose for the intake side of the dpf filter was destroyed and I replaced it and now these codes are not cleaning., Be the first to review “Cummins ISX12 CM2250 (2010-12) Fault Code: 2639 (X) PID: SID 324 SPN: 3251 FMI: 15 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Least Severe Level” Cancel reply, Well the 2639 is a dpf diff pressure critically high fault. This has to be reset with insite. It could possibly be plugged up. This may be what is causing your engine to …, Be the first to review “Cummins ISB6.7 CM2350 (2013-17) Fault Code: 2639 PID: SID 324 SPN: 3251 FMI: 15 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Least Severe Level” Cancel reply, Download and support for the digital fault code troubleshooting manual, includes fault codes, ... Cummins Emission Solutions Aftertreatment: FIS4960729.chm: HS CM2250 Power System: FIS4961207.chm: Hybrid PECM CM5190: FIS4961207.chm: INSITE Integrated Simulator - Single Module: FIS4961207.chm: ISB:, Home / DTC TRUCKS / Cumminz / ISX15 CM2250 (2010-12) / Cummins ISX15 CM2250 (2010-12) Fault Code: 3133 PID: SPN: 3610 FMI: 3 Aftertreatment Diesel Particulate Filter Outlet Pressure Sensor Circuit- Voltage Above Normal or Shorted to High Source, We have a customer with a 2010 M2 business class freightliner with engine #73012266 ISC Cummins it keeps getting code 2637/2639/1921 of course when 2637 occurs it stop you from doing a roadside regen & derates the engine,we had the ECM update, the DPF has been baked out twice, the catylist once, ran functional test on …, Home / DTC TRUCKS / Cumminz / ISX15 CM2250 (2010-12) / Cummins ISX15 CM2250 (2010-12) Fault Code: 3133 PID: SPN: 3610 FMI: 3 Aftertreatment Diesel Particulate Filter Outlet Pressure Sensor Circuit- Voltage Above Normal or Shorted to High Source, Sep 23, 2020 · 2010 kenworth t800 cumminsHas check engine light on and also speed guage not working..Fault code 2639 fmi n/a Fault code 241 fmi n/a Spn 84 fmi 9 All above codes are activeFollowing codes are inactive … read more , Cummins Tier 4 Fault Codes Fault Code J1939 SPN J1939 FMI Lamp J1939 SPN Description Cummins Description QSB 6.7 QSL 9 QSX 15 QSB 4.5 QSF 3.8 QSG12 111 629 12 Red Controller #1 Engine Control Module Critical Internal Failure - Bad intelligent device or component XXXXXX 115 612 2 Red System Diagnostic Code #2, Be the first to review “Cummins ISB6.7 CM2350 (2013-17) Fault Code: 2639 PID: SID 324 SPN: 3251 FMI: 15 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Least Severe Level” Cancel reply, ISX15 CM2350 X101 Fault Code: 2639 | SPN: 3251 | FMI: 15 Aftertreatment Diesel Particulate Filter Differential Pressure - Data Valid But Above Normal Operating Range - Least Severe Level 1 Check for primary fault codes 2 Restricted intake air filter 3 Aftertreatment DPF differential pressure sensor tubes plugged 4 Aftertreatment DPF ..., Code 2637 Diesel Oxidation Catalyst. We have a 2010 ford f650 with the Cummins 6.7 engine in it, 330,000 miles. It does not have DEF but it has the DPF and a Cat. It is throwing code 2637 which is "Diesel Oxidation Catalyst face plugged - Root cause unknown." So let me get this straight: This isn't the DPF, this is the Cat, right?, A damaged connection has been detected in the sensor or harness connector. Clean the connector and pins. Repair the damaged harness, connector, or pins, if possible. Guided Step 4B - Check the circuit response. Turn keyswitch OFF. Disconnect the EGR delta pressure sensor from the engine harness. Turn keyswitch ON., 1, 2013 Freightliner M2 chassis/Cummins 6.7 ISB passenger bus travelling 100000 mountain miles per year. 2, 2010 Ford F650 buses with Cummins engines, each at about 300,000 miles. 1, 2015 Ford Transit 11 passenger wagon with the Powerstroke 5 cyl engine traveling about 125,000 miles per year. The bane of my existence: A 2006 Sprinter., Be the first to review “Cummins ISX12 CM2250 (2010-12) Fault Code: 2639 (X) PID: SID 324 SPN: 3251 FMI: 15 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Least Severe Level” Cancel reply, 2639 is showing active. Truck has had a new Ecm recently. Technician: Daniel Wilson. Fault 2639 : This fault code can be triggered if the application is not operating at duty cycle high enough to regenerate the aftertreatment diesel particulate filter. This fault code indicates that the exhaust temperatures exiting the turbocharger are not high ...