Dd15 spn 3226 fmi 13 2 SPN 70/FMI 19 DD15 Troubleshooting – Section 20 SPN 84 (CPC) DD15 Troubleshooting – Section 18. NOTE: If occurrence counter 5 or less, clear codes and return vehicle to customer. 1. Freightliner Cascadia 2015 DD15: SPN 520268 FMI 16 Engine Shutdown Issue Cascadia models often face fuel filter clogging and sensor faults causing engine shutdowns after maintenance. This spn fmi codes help explain the underlying meaning of the numerical components which build an engine fault code. Dec 6, 2022 · When you see an SPN 3226 FMI 10 error code then those numbers refer to- Abnormal Rate Of Change. Start the engine and perform a parked regeneration while monitoring the NOx efficiency. The coach was running fine through the mountain driving. Is there something that am i missing??. If the fault code returns, Go to step 4. T/S only said to check connection and if in good condition replace Outlet NOX sensor. Start by scanning for additional codes to pinpoint affected components like the camshaft or crankshaft position sensors. May 3, 2018 · Yesterday, I was going fairly fast on Hi RPM and all of the sudden this code showed up (EEC 61 SPN 3226). a. Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor – Drift Customer: Códigos SPN 5741 FMI 13 y SPN 3216 FMI 20. Diagnose and fix DD15 issues fast with Diesel Repair. Engine at 1200 to 2400 rpm. Refer to section "Removal of the Soot Sensor" or Refer to section "Removal of the 2V2/2HH Soot Sensor". Check wiring harnesses for damage or corrosion, especially connectors near the inlet and outlet sensors. Selective catalyst reduction (SCR) outlet NOx sensor signal not available. The ECM / ECU also attaches a text description to the message that is transmitted over the J1939 data link. Feb 28, 2025 · The Detroit Diesel DD13 engine, produced from 2017 to 2020, is a versatile and fuel-efficient solution designed for regional hauling, vocational work, and municipal applications. Customer: Hello, I have an active fault code 3226 FMI 20. What components are involved in triggering SPN 5246? The main components involved in triggering SPN 5246 are the DEF pump, DEF injector, DEF tank and level sensor, and SCR Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3246 FMI 0 (ACM) Diesel Particulate Filter Outlet Temperature – Very High DESCRIPTION: This code sets when the Diesel Particulate Filter (DPF) outlet temperature is greater than 760°C (1400°F) for more that two seconds. 9K views • 1 year ago I have the following fault codes for a 2011 Freightliner Cascadia: EEC 61, spn 3364, fail 2 EEC 61, spn 3216, fail 4 EEC Fault code spn 3216 fmi 5 Spn 3226 fmi 12 Spn 5246 fmi 16 Spn 5298 fmi 18 Son 3226 fmi 13 Spn 5394 fmi 5 I cleared the Read less 19 Likes 2018 freightliner Cascadia with active code SPN 3226/FMI 13 (Selective Catalyst Reduction (SCR) Inlet NOx Sensor Signal Freightliner 2015 dd 15 flahs code spn 4375 fmi 4 ,4375 fmi 5 Sep 18, 2021 · I've got the 450 hp ISL engine (2104 Allegro Bus 37AP) with an MIL light on, SPN 3216 FMI 20 code. Nov 9, 2016 · SPN 3226 FMI 20 NOX sensor in emissions (might be unrelated) These errors are frequentish but inermittent. This text description is used to describe the SPN – FMI. For example, in the fault code SPN 3226 FMI 13, the SPN number 3226 tells you the problem is with the SCR outlet NOx sensor and FMI 13 tells you that the signal from the part is unavailable. I HAVE THE FULL DIAG AND REPAIR MANUAL FROM DETROIT DIESEL AT THE END OF THE VIDEO FOR THE SPN 5741 SOOT SENSOR CODE. Mechanic's Assistant NOTE: Fault code SPN 3361/FMI 5 will become present when the Diesel Exhaust Fluid (DEF) doser electrical connector is disconnected. Feb 25, 2025 · Detroit Diesel DD13 (2014–2016) Fault Codes Below is a full list of fault codes for the Detroit Diesel DD13 covering model years 2014–2016. Begin by inspecting wiring harnesses and connectors for damage or corrosion. With onboard systems that offer real-time monitoring and fault code reporting, this engine empowers May 4, 2024 · I just had a WesternStar with DD15 engine come to my shop, derate. 2 SPN 3216/FMI 16 - GHG17 Engine Out NOx Sensor Drifted Low Table 1. The cycle will repeat until the operator releases the diagnostic request switch. Clearing the code after repairs and performing a test drive helps SPN 51 (MCM2) SPN 51/FMI 2 - ALL YEARS SPN 51/FMI 3 - ALL YEARS SPN 51/FMI 4 - ALL YEARS SPN 51 (GHG14) SPN 51/FMI 10 - GHG14 SPN 51/FMI 18 - GHG14 SPN 70 (CPC) SPN Applies To: All Models with 250k Baud Data Link (Black 9 Pin Diagnostic Connector) SPN 3216 FMI 18 indicates a NOx sensor circuit fault despite recent sensor replacements. 56. Yes; replace the soot sensor. 1 outlet NOx sensor drift high. Check for any SPN 190/FMI engine over-speed fault codes. What that means is that the Nox Sensor is getting an invalid reading. Regular maintenance of Nov 5, 2019 · My experience was with a different code, 3226 fmi 20. 2 SPN 3216/FMI 13 - EPA10 This diagnostic is typically SCR Inlet NOx Sensor Signal Not Available. Mar 6, 2025 · Check out the Detroit Diesel DD13 Gen 5 (2023) fault codes list for quick troubleshooting, diagnostics, and solutions to keep your engine running smoothly. Hello, I specialize in medium and heavy trucks. Clear the fault codes after repairs and monitor if the code reappears. Are any SPN 190/FMI fault codes active or previously active? a. Code SPN 3226 FMI 13 indicates a fault in the aftertreatment system, often related to the Diesel Exhaust Fluid (DEF) dosing valve or sensor malfunction. DD15 Troubleshooting – Section 21 SPN 84 (CPC) DD15 Troubleshooting – Section 19. Check for multiple high exhaust temperature fault codes. 4. Verify repair. Most of the time fault code came back with 2 new sensor installed back to back with only a week between. ¿Podrías decirme la marca, modelo y año de tu vehículo? Customer: Freightliner Cascadia DD15 2016. 1 SPN 51/FMI 2, 3 or 4 DD15 Troubleshooting – Section 19 SPN 70 (CPC) DD15 Troubleshooting – Section 18 We got so many issue about fault code 61/3226/20. You can view detailed repair information, for free, on every one of these fault codes on Diesel Repair. t version. I'm here to assist you in resolving the fault code SPN-1636 - FMI: 2 on your 2014 Freightliner Cascadia with a DD15 engine. Yes; Go to step 4. Customer: I'm working on a 2017 Freightliner Cascadia with a Detroit Diesel DD15 DDEC 13 engine. I had a PM service done almost two months ago. Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low Mar 10, 2025 · The Detroit Diesel DD16 engine, produced between 2011 and 2013, was designed to power the most demanding applications in the Class 8 truck segment. Check wiring harnesses for damage or corrosion, especially connectors near the ACM. Can you provide the diagnostic procedure and guidance on where to look? 2 SPN 3226/FMI 2 - EPA10 - GHG14 Selective Catalyst Reduction Outlet NOx Sensor – Drift Table 1. 2. Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3216 FMI 13 (ACM) Selective Catalyst Reduction Inlet NOx Sensor Signal Not Available Oct 9, 2023 · Check for coolant leak at cylinder head gasket. Is the check engine light blinking or solid? When did you last change the oil? Customer: It was blinking, but now it's solid. Check the SPN 3226/FMI 13 DTC occurrence counter. 3. Are any of the following fault codes present? • SPN 102/FMI 16, 18 • SPN 1636/FMI 2 • SPN 2630/FMI 2 • SPN 2659/FMI 0, 18 Active code 3226 on a 2015 International ProStar with a Cummins engine typically indicates a turbocharger boost pressure fault. Begin by inspecting the DEF dosing valve for clogging or electrical issues. Code 61 ACM with SPN 3226 FMI 20 indicates a fault in the Aftertreatment Control Module sensor circuit. SCR outlet NOx sensor signal. What information can you provide about this, and is it safe for me to continue driving? Jun 28, 2022 · FMI stands for failure mode identifier—this part of the fault code tells you what type of problem your truck has. 5 2 SPN 4364/FMI 1 - EPA10 WARNING: PERSONAL INJURY To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked. Check for proper DEF fluid quality and level. Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 21 (ACM) NOx Outlet Sensor Drift High DESCRIPTION: Outlet NOx sensor drifted high. This component plays a crucial role in measuring nitrogen oxide emissions from your vehicle’s exhaust system. Sometimes all of them will happen simultaneously, but when I turn the truck on a few hours later everything is clear. No; Go to step 6. Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low Feb 19, 2025 · Troubleshoot your Detroit Diesel DD15 (2010-2013) engine with our comprehensive fault code list and repair tips to keep your truck running smoothly. No; Go to step 12. Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available Sep 2, 2019 · Our yellow MIL light came on driving from Santa Fe to Pagosa Springs. WARNING: PERSONAL INJURY Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. NOTE: If any engine ECMs have been programmed recently, clear codes and release vehicle to customer. When these checks and subsequent repairs are finished, refer to “28. Regular maintenance of the exhaust aftertreatment system Feb 24, 2025 · The Detroit Diesel DD13 Gen 5, built for model years 2024 to 2025, represents the latest in Detroit’s medium- and heavy-duty engine technology. I've searched for a cross reference on the Cummins codes, but none show that complete code. Check the sensor wiring and connector for damage or corrosion. Drove about 100 miles and then it called for a forced region and same code EEC 61 FAIL 20 SPN 3226. After replacing the outlet box sensor, verify wiring harness integrity and connector pins for corrosion or damage. Check for coolant leak at air compressor head gasket. The 520372. To update the tool troubleshooting guide, open DiagnosticLink and from the Help - Troubleshooting Guides menu, select the appropriate troubleshooting manual, then cl Sep 17, 2021 · I was recently on a 3 month trip. Is that how it is supposed to look like? Freightliner Cascadia repair discussion about removing outlet nox sensor and potential issues NOTE: Otherwise, clear codes, turn key off for 5 minutes, and re-start. Active codes will be flashed on the SEL. Customer: I have a 2012 Freightliner M2 with a Detroit 13 engine, and I'm seeing an active code SPN 3226 FMI 21. Check wiring harness for damage or corrosion. Check for multiple fault codes. DD13 engines often face sensor faults and emission control errors causing performance issues. Has new filters new harness new inlet box sensor and new def tank. TYPICAL ENABLING CONDITIONS: Always enabled MONITOR SEQUENCE: None EXECUTION FREQUENCY: Continuous when enabling conditions met. Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3242 FMI 20 (ACM) Diesel Oxidation Catalyst Temperature Drift – Inlet High or Outlet Low SPN 3226 FMI 2 indicates a sensor data out-of-range or signal issue, often linked to the vehicle’s electronic control module (ECM) inputs. 1 SPN 70/FMI 13 DD15 Troubleshooting – Section 19. If the DTC occurrence counter is greater than 5, Go to step 3. Spn3512 fmi3 and fmi4 fault codes also spn3363 fmi18 and spn5745 fmi3 Fault code spn 3216 fmi 5 Spn 3226 fmi 12 Spn 5246 fmi 16 Spn 5298 fmi 18 Son 3226 fmi 13 Spn 5394 fmi 5 I cleared the Read less 1 Likes Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 3 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed High Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor – Drift Back to blog 2 SPN 3226/FMI 20 - GHG17 Selective Catalyst Reduction Outlet NOx Sensor - Drift Low This fault code may be set by an inlet NOx sensor drifted out of range with the engine at a low speed, low load (low box) situation. Is the voltage within . Aug 23, 2024 · Other fault codes commonly found alongside SPN 5246 include SPN 4334 (DEF Pressure Too Low), SPN 4339 (DEF Pressure Too High), and SPN 4364 FMI 18 (DEF Injector Circuit). Flash codes and descriptions are listed in Table 5-1. The problem is code spn-520372 and spn-3226 keep popping… 2015 with spn 5246 fmi 15 spn fmi 16 spn3216 fmi13. keyworks freightliner kenworth peterbilt international volvo mack western star cascadia coronado t660 t680 t700 579 389 379 589 vnl vn cummins Feb 14, 2025 · Explore the DD15 fault codes for 2021-2022. Access repair info free with Diesel Repair’s tools and mobile app. TYPICAL ENABLING CONDITIONS: Refer to section "Removal of the DD15 and the DD16 Turbocharger". Get the Detroit Diesel DD13, DD15, DD16 GHG17 Engine Troubleshooting Manual in downloadable PDF format on your PC, Mac, tablet or phone within minutes -- no wait! Deep discounts, fast & friendly service and secure checkout. 1 SPN 1326/FMI 13 The fault condition is related to cylinder #4 exhibiting a misfire event. 13 to 15 active aftertreatment codes. If persistent, test or replace the related sensor, ensuring proper calibration. Inspect the NOx sensor and harness connector for signs of damaged, bent, spread, corroded, or unseated (pushed out) pins and signs of moisture in the connector or wire damage near the connector. SPN 3226 FMI 20 Aftertreatment No. Engineered to meet the most current emissions and performance standards, the Gen 5 DD13 is optimized for fuel economy, uptime, and diagnostics. Check for loose or faulty radiator cap. MONITORED PARAMETER: DPF Outlet Temperature Sensor. Get free wiring diagrams, part numbers, and troubleshooting guides. The codes are displayed in the form “SPN – FMI”. Diag came up with DEF Pump overspeed and underpressure - it was cracked, Outlet nox sensor drift high and Inlet Nox sensor abnormal update rate. With an updated emissions system and enhanced onboard diagnostics, the DD13 during this period offered improved uptime and lower operating costs for fleet owners. 16 fault code on a 2019 Cascadia DD15 typically indicates sensor or wiring issues related to the engine control module (ECM). Is any damage found? Yes; repair as necessary. I've been having a problem with my aftertreatment system on my 2017 cascadia with a dd15. 1. SPN 4374 and SPN 3226 FMI 20 codes indicate issues with the NOx sensor circuit and DEF pump operation. TYPICAL ENABLING CONDITIONS: 1. Have had to regen 4 times in 24hrs. This code can be cleared using DiagnosticLink once the DEF doser electrical connector is reconnected. Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 21 (ACM) NOx Outlet Sensor Drift High Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 4 Feb 11, 2025 · Find a complete list of Detroit Diesel DD15 Gen 5 (2023) fault codes, wiring diagrams, and repair manuals. 1 Verify Repairs” . Inspect the sensor harness for bent, spread, or corroded pins. If the DTC occurrence counter is 5 or less, clear the fault and release the vehicle. Check the turbocharger actuator, boost pressure sensor, and associated vacuum lines for leaks or damage. Feb 17, 2025 · Find fault codes and repair solutions for Detroit Diesel DD15 (2017-2020). Let's collaborate to find a solution for this issue. SPN 3226 FMI 21 indicates a turbocharger boost pressure sensor fault. MONITORED PARAMETER: Outlet NOx sensor. Cummins Tier 4 Fault Codes. Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor – Drift The SPN-3226 FMI 13 code indicates a fault in the aftertreatment system, often linked to the Diesel Exhaust Fluid (DEF) dosing valve or sensor. 6. Mechanic's Assistant: Gracias por la información. 3 2 SPN 3226/FMI 3 - EPA10 - GHG143 The SPN 3226/FMI 13 code indicates the SCR inlet NOx sensor signal is unavailable. Sep 2, 2019 · Our yellow MIL light came on driving from Santa Fe to Pagosa Springs. Engine #1 also reports that Auxiliary Output Device Driver #2 has special instructions. Engine exhaust is toxic. MONITORED PARAMETER: Selective catalyst reduction (SCR) outlet NOx. Essentially, please inspect the pins for any damage and consider replacing the charge air outlet Freightliner Cascadia DD13 DD15 SCR inlet NOx sensor replacement spn 3216 (fmi 2 - 4 - 21) Francisco Amaya 112K subscribers Subscribe Customer: Freightliner Cascadia 2023 250,000 DD15 DT12 Transmission. Check the DEF dosing valve for clogging or electrical issues. 18. I've tried to read as much 524286 fmi 4 code, spn 558 fmi 6 code coming up together Freightliner Cascadia CPC4. SPN-523001 FMI-13 SPN-3251 FMI-20 SPN-5397 FMI-31 SNP-520371 & 520372 FMI-16 Customer attachment 1/26/2022 8:36:42 PM I'm sorry, I couldn't read my own handwriting. Faulty sensors cause inaccurate emissions readings, triggering engine lights. 5 volts of battery voltage? Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low Oct 22, 2025 · 22 October, 2025 Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available Detroit DD13 EPA10 (2010-13) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available Detroit DD13 EPA10 (2010-13) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low GHG14 ACM2. Using the Freightliner LBCU dash information panel, I got the following fault codes: Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Inspect sensor connectors for secure fit and clean contacts. During this period, the engine incorporated advanced onboard diagnostics and emissions technologies, making it easier for Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 3 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed High Back to blog Mar 2, 2015 · Outlet NOx Sensor trouble SPN 3226 FMI 9 Discussion in ' Peterbilt Forum ' started by JKtrash, Mar 2, 2015. Any help ? ACM 7. 5 2 SPN 5741/FMI 13 - GHG17 b. The issue was that the Outlet NOx Sensor had gone bad and need to be replaced (see picture below). I have attached the troubleshooting guide for the code. The entry conditions for this code are:‪ Engine speed is above low idle All cylinders are active, no fault reactions Engine speed/torque is steady This fault can occur due to the conditions listed below:‪ Cylinder kit failure Valve train failure Lash adjustments Injector High pressure Is SPN 1761/FMI 3 still present? Yes; replace the DEF tank temperature/level sensor. Is the NOx efficiency Cummins X15 engine DPF SCR outlet Nox sensor removal replacement spn 3226 fmi 9 3226 fmi 4 Francisco Amaya 113K subscribers Subscribe SPN 4364 FMI 18 | SPN 3364 FMI 2 | SPN 5264 FMI 15 | SPN 3226 FMI 2 | 55 MPH Derate | Regen Issues The Golden Trucker • 1. Disconnect the SCR outlet NOx sensor. There is a bunch of vehicle that always came back with this fault. My truck won't start and it shows these codes: 520880 - Manufacturer Assignable SPN FMI: 13 SPN: 639 - J1939 Network #1 Primary Vehicle Network FMI: 14 The VIN is #1fujgldrxhlhz9723. SPN 3226 indicates that the voltage for Aftertreatment 1 Outlet NOx is below normal or has a short to low. Mechanic's Assistant: Lamento los problemas que estás enfrentando. I'm encountering a code SPN 3226 FMI 13, and after changing the outlet NOx sensor, I'm still getting 0 ppm. Good afternoon. This video contains advance technician information. Oct 4, 2009 · SPN 3226 FAIL 20 DD15 CASCADIA Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by bunniecarrots, May 30, 2019. Mar 9, 2017 · I got one engine yellow light comes on for my Freightliner EVO 2016 And the code I found it by the diagnostic option SPN 3226 FMI 13 I'm not sure where Customer: I have an active code SPN 3216 FMI16 on a 2016 Freightliner Cascadia DD15 engine. Change GHG17 DD Platform SPN 4364/FMI 17 -GHG17 Minor additions along with five new steps. For more detailed diagnostics — including step-by-step repair instructions, wiring diagrams, parts lookup, and labor guides — visit Diesel Repair, your trusted source for diesel engine troubleshooting and service data. A few weeks into the trip, I was leaving a campground and got check engine light. If damage or leaks are found, repair as necessary. Are any of the following faults present: SPN 4331/FMI 15, SPN 3216/FMI 16, SPN 520372/FMI 14 or SPN 5841/FMI 14? Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low Freightliner cascadia DD15 engine SCR outlet nox replacement spn 3238 fmi 2 diagnostic and repair When Carjackers Mess With The Wrong Car | Dashcam Instant Karma #2 NOTE: Fault code SPN 3361/FMI 5 will become present when the Diesel Exhaust Fluid (DEF) doser electrical connector is disconnected. The failure mode of the DTC is determined by evaluating the electronic signal from the suspect circuit. Its advanced electronics allow for fast fault code Overview In 2019, to increase repair efficiency and customer throughput, DTNA modified troubleshooting, repair procedures, and Standard Repair Times (SRTs) for Detroit NOx sensor circuit fault codes in GHG17 after treatment systems. Jul 28, 2024 · Truck Year/Model/Engine: 2016 Freightliner Cascadia Detroit DD15 After idling for hours in Phoenix, AZ in 110 degree weather, my check engine light came on. SPN 3226 FMI 10 indicates a fault in the NOx sensor circuit, typically the outlet sensor. SS 1033423 : J-1939 Fault Code Source Address (SA), Suspect Parameter Number (SPN), and Failure Mode Indicator (FMI) Descriptions J-1939 Fault Code Source Address (SA), Suspect Parameter Number (SPN), and Failure Mode Indicator (FMI) Descriptions This solution helps explain the underlying meaning of the numerical components which build a fault 2010 SUBJECT: SPN 3226 FMI 13 SCR OUTLET NOX SENSOR SIGNAL NOT AVAILABLE ADDITIONS, REVISIONS, OR UPDATES Publication Number Platform Section Title Change Page Number (s) DDC-SVC-MAN-0084 EPA10 DD Platform SPN 3226 FMI 13 Procedures have been Insert as stated. Verify repairs. Aug 22, 2024 · 17. Sometimes I can drive for hours with just the coolant sensor check engine light blinking on and off. No; replace the MCM. So I plugged in my scanner tool from OTR Performance to see what the code was. 6. Oct 12, 2023 · To read codes, use the diagnostic data reader or depress and hold the diagnostic request switch with the ignition ON, engine at idle or not running. 21. Refer to section "Removal of the Motor Control Module". No; Go to step 5. Jun 6, 2019 · Section 21. In Customer: Freightliner DD15 has active fault codes 520372 in mode 16 and 3226 in mode 20. Aug 23, 2024 · SPN 3226 is a fault code related to the Selective Catalytic Reduction (SCR) Outlet NOx Sensor in diesel engines equipped with after treatment systems. Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low SPN 3226 FMI 13 Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available SPN 3226 FMI 20 Selective Catalyst Reduction Outlet NOx Sensor – Drive Low Nov 1, 2024 · The SPN 3216 code indicates an issue with the Aftertreatment 1 Intake NOx sensor in diesel engines. ENJOY FOLLOW ME ON INSTAGRAM: / gasdieselga. No; update the MCM software, then perform the repair verification in the chart above. 1 Fault Codes Circuit Fault Rationality Fault Engine Protection Fault Component Broadcasted Fault Communication Data Fault Information Fault DETROIT DIESEL DD15 3226 spn fault code name is Aftertreatment 1 Outlet NOx 1. One small issue like DETROIT DIESEL DD15 3226 can cause a larger component to become damaged without taking the time to investigate. With its robust torque curve and high horsepower capabilities, the DD16 offered unmatched performance for heavy-duty fleets. changed to be more specific about the SCR NOx sensor. What is the difference between SPN 3216 and SPN 3226? SPN 3216 relates to the Aftertreatment 1 Intake NOx Sensor, while SPN 3226 relates to the Aftertreatment 1 Outlet NOx Sensor. 5. Replace the NOx sensor if diagnostics confirm failure. . The intake sensor measures NOx levels before the SCR catalyst, while the outlet sensor measures levels after the catalyst. NOTE: If fault occurred during high idle regeneration, clear fault and release vehicle. Yes; Check DDEC reports for an engine over-speed and inspect camshafts for spun cam lobes. If it comes back, use 625-9 to troubleshoot. Go to step 6. After replacing the outlet NOx sensor and DEF pump, verify wiring harness integrity and connector cleanliness to prevent false codes. I've only been driving a 2017 dd15 Cascadia since February last year. b. Clean or replace the boost pressure sensor if Feb 10, 2025 · Below is a comprehensive list of fault codes you may encounter on a Detroit Diesel DD15 Gen 5, which covers model year 2024 & 2025. Inactive codes will be flashed on the CEL. Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available Categories DD15 GHG14 (2014-16), Detroit, DTC TRUCKS Tags 16, 2014, 3242, 4, ACM, Catalyst, Code, DD15, Detroit, Diesel, failed, Fault, FMI, GHG14, Inlet, Low, oxidation, Sensor, SPN, Temperature NOTE: Fault code SPN 3361/FMI 5 will become present when the Diesel Exhaust Fluid (DEF) doser electrical connector is disconnected. I replaced the NOX sensor and the ECM computer about two weeks ago, and the check engine light has come on. Check for coolant in oil. Inspect sensor connectors and wiring harnesses for damage or corrosion. This component plays a vital role in monitoring nitrogen oxide emissions, contributing to your vehicle's overall efficiency and environmental compliance. After some investigation, I noticed my DEF gauge is showing 4 bars, but the tank was less than half full. Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3242 FMI 3 (ACM) Diesel Oxidation Catalyst Inlet Temperature Sensor Circuit Failed High Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3236 FMI 13 (ACM) Exhaust Mass Signal Not Available via Controller are Network Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 21 (ACM) NOx Outlet Sensor Drift High Customer: I'm experiencing issues with my 2011 Freightliner Cascadia, as it's showing active codes: SPN 3720 FMI 15. Never had a problem before it came Fault code spn 3216 fmi 5 Spn 3226 fmi 12 Spn 5246 fmi 16 Spn 5298 fmi 18 Son 3226 fmi 13 Spn 5394 fmi 5 I cleared the Dd13 spn 3216 fmi 18 what is this code and repair procedures Jul 25, 2025 · PACCAR PX9 (2024–2025) Fault Code List with SPN, FMI, PID, and SID codes. 2 SPN 3226/FMI 20 - GHG14 This diagnostic is typically Selective Catalyst Reduction (SCR) Outlet NOx Sensor – Drift Low. . If you don't take the time to look into DETROIT DIESEL DD15 3226 spn fault when it arises, it can add up quickly. Get instant access to fault codes, wiring diagrams, repair procedures and more with Diesel Repair. 0 software with fuel map ZGS Version Table 8. Mechanic's Assistant: Hi there. 12. Additionally, there are inactive codes: SPN 168 FMI 0, SPN 608 FMI 14, and SPN 4077 FMI 14. Measure the voltage between pin 1 of the soot sensor connector harness side and ground. Cummins SPN FMI Codes Most used engine in trucks is Cummins has more than 100 SPN/FMI codes list. Check for external coolant leak at hose connections. Refer to section "Removal of the 13- and 23-Gallon Diesel Exhaust Fluid Tank Header Unit". TYPICAL Oct 4, 2009 · Hello Everyone I'm having an issue received SPN 3226 FAIL 20 DD15 CASCADIA, took it to freightliner and they installed an awning kit. No; replace the ACM. Check as follows: 2019 International LT625 Cummins X15 Engine SPN 3226 FMI 20 Issue LT625 users report engine derate warnings and sensor faults related to emissions and exhaust systems. 3 SPN 102/FMI 18 – GHG14 Intake Manifold Pressure Too Low Table 2. Click here for more information. SPN 5246 is reserved for future assignment by SAE regarding Aftertreatment SCR Operator Inducement Severity. Removed my outlet nox sensor, SPN 3226 FMI 10 code. Oct 30, 2024 · What does the SPN 3226 – Aftertreatment 1 Outlet NOx mean? The SPN 3226 code is a diagnostic trouble code that indicates an issue with the Aftertreatment 1 Outlet NOx sensor. Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor – Drift Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3216 FMI 21 (MCM) Selective Catalyst Reduction Inlet NOx Sensor – Drift (Low Box) Home Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3226 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor – Drift 22 October, 2025 Jul 8, 2023 · Make: Detroit Engine: DD15 GHG17 (2017 & Newer) PID: N/A SPN: 3227 FMI: 2 Description: Lambda Reading Rationality Check Troubleshooting: DESCRIPTION: Goal of this diagnostic is to detect the tail pipe out lambda signal lower than expected in engine no fueling mode. Feb 18, 2025 · Explore the Detroit Diesel DD15 (2014-2016) fault codes to diagnose and repair engine issues quickly and keep your truck running smoothly. Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3216 FMI 4 (ACM) Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed Low Categories DD15 GHG14 (2014-16), Detroit, DTC TRUCKS Tags 16, 2, 2014, 3226, ACM, Catalyst, Code, DD15, Detroit, Drift, Fault, FMI, GHG14, NOx, Outlet, Reduction, Selective, Sensor, SPN FacebookTwitter Wiring Diagrams 2012 Freightliner Cascadia EPA10 (with DEF), the current active fault codes SPN 3226 FMI 3 SCR Outlet NOx Sensor Circuit Failed High and SPN 3226 FMI 4 SCR Outlet NOx Sensor Circuit Failed Low. - This is not a comprehensive list, or an alternative to the standard fault diagnostic process and only serves as a supplemental reference. "DON'T GET SCREWED BY THE DEALER". However, recent claim data indicates that a high number of NOx sensor claims, especially those for circuit fault codes, get returned for corrections or modified Visually inspect the entire air inlet, Charge Air Cooler (CAC), and EGR piping and hose for visible signs of leaks or damage. Disconnect and inspect the 120-pin ACM connector. Engine Idle: One minute. Averaged SCR temperature Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low Oct 22, 2025 · 22 October, 2025 Detroit DD15 EPA10 (2010-13) Fault Code: SPN 3236 FMI 13 (ACM) Exhaust Mass Signal Not Available via Controller are Network NOTE: Please see the step by step troubleshooting procedures for this specific code. Are there any bent, spread, or corroded pins? Yes; repair as necessary. Inspect the turbocharger actuator and vacuum lines for leaks or sticking. SCR outlet NOx sensor. This article provides a detailed analysis of the code, its implications, and resolution strategies. There is a log file with a parked regen for info.