Cummins Fault Code 3911, After Cummins 6. Root Causes: I hav

Cummins Fault Code 3911, After Cummins 6. Root Causes: I have a 2015 Freightliner M2 with a Cummins ISL9-350 in it. Comprehensive list of Cummins engine fault codes, severity levels, and troubleshooting actions for QSB, QSC, QSL, QSM, QSX, QSK models. This addresses operator complaints of Fault Code 3911 and umination of CHECK ENGINE lamps. • Disable Fault Code • Operate the engine within the Summary: CUMMINS: THE FAULT CODE 3911 AND CHECK ENGINE LAMPS ILLUMINATES DUE TO VOLTAGE TO AMMONIUM HYDROXIDE NH3 SENSOR AND IS DIPPING BELOW 9 VOLT Slide 1 SA 0 41 TSB210058 This technical service bulletin describes the verification and resolution of one or more of the following fault codes: 1894, 2771, 3232, 3868, 3911, 4151, 4152, 4572, 4677, 5177, or 6688. The second play at the center of your electronic dash when using column shows Fault Mode Identifier (FMI) numbers. com description shown during search © 2026 Cummins Inc. Issue Engine wiring harness issues on J1939 datalink are causing datalink related fault codes. Cummins engines utilize two primary types of diagnostic codes: SPN (Suspect Parameter Number) Codes: These codes relate to specific parameters within the engine's various systems, like fuel When your truck is under Derated with codes 3712 and 3714, you have to do the following step by FCAR truck scanner if there is not physical part failure: 1) Go Cummins spn/fmi code list from 1 to 9999999 and fault code list from 111 to 9999. 80-1235 - Allied Systems 80-1235 Complete Cummins engine fault codes database with SPN/FMI diagnostic trouble codes. 3232, 2771, 3714, 3361, 3911, 2198, Cummins ISB6. This document describes troubleshooting steps for fault code 391 related to the VP44 relay coil supply circuit on Cummins engines. Occurrence of one or more of the following Fault Codes: 1894, 2771, 3232, 3868, 3911, 4151, 4152, 4572, 4677, or 6688. 7 engine. 7 isb frtl m2 Cummins code 1696. It lists SAE J1939 codes along with the associated lamp color, MIL Appendix A: SAE Diagnostic Trouble Codes and Cummins Fault Codes Code 143 148 J1939 SPN 100 100 100 J1939 16 18 Lamp Red Red Amber Amber Amber Red Red Amber Amber Amber Amber FIS is a downloadable version of the fault code troubleshooting manual. 7 ISB engine issue with code 1696 and ECM 5V in a Freightliner M2 beverage truck, discussing These ISL & ISC codes are for quick reference to find out what your fault means. Please verify the ECM calibration is updated, as per TSB210192 This technical service bulletin describes the verification and resolution of fault code is active or has more than one inactive count within the last twenty-five engine operating hours from the The more codes you see, the more accurate the location and problem are. When up to operating temperature 300 plus degrees TSB210058-030920 This technical service bulletin describes the verification and resolution of engine wiring harness issues on j1939 datalink that are causing datalink related fault codes 1894, 2771, The Cummins Engine Diagnostic Fault Codes manual for 2003 and later engines is an indispensable resource for anyone working with The Cummins Fault Code List PDF is a comprehensive guide detailing diagnostic trouble codes for various Cummins engine models, including Understanding Generator Fault Code Diagnostics When your Cummins generator displays a fault code, it's sending you a crucial message about its operational status. SETUP A CUMMINS QUICKSERVE ONLINE ACCOUNT FOR FREE AND FILTER ALL INFORMATION TO BE RELEVANT TO YOUR ENGINE. Fault code examples are: 427, 1894, 2636, 2771, 3232, 3326, 3328, 3488, 3526, 3868, 4151, 4152, 4572, 4677, 5177, and/or 6688 Unit can also exhibit shift quality issues and gear limitation, ust fluid Download the Cummins Fault Codes manual PDF for QSB, QSC, QSL9, QSM11, QSX15, QSK engines with detailed troubleshooting and This document contains a list of Cummins fault codes, including the SPN J1939 code, FMI code, lamp color, device, and description for each fault. It has multiple codes. If you don't take the time to look into CUMMINS ISC 2681 spn fault when it arises, it can add up quickly. Refer to Chap-ter 59- This document lists Euro VI fault codes, including the fault code number, warning/stop lamp indication, MIL activation, driver warning system activation, Cummins Engine Fault Codes Decoding the Mystery: Understanding Cummins Engine Fault Codes So, your Cummins engine is throwing a code. The issue is difficult to reproduce and is not able to be duplicated in a road test. Download your free guide now and diagnose engine issues quickly! This document provides information about fault code 3545 related to an abnormal rate of change of the aftertreatment outlet NOx sensor. etnyre. Cummins Fault Codes list for QSB, QSC, QSL9, QSM11, QSX15, QSK19, QSK23, QST30, QSK45, QSK60, QSK78 engines See also: Cummins Engine non-EGR Fault Codes To determine the ISB fault codes: A complete list of all Cummins fault codes for ISB diesel engines Having trouble finding what your ISB fault codes mean? Here is a list of all Cummins fault codes for the ISB diesel engine. The aftertreatment SCR intermediate NH3 • 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 So I looked up codes 3934 &3911 on quickserve, but the active codes seems to be related to the aftertreatment 1 SCR intermediate NH3 gas sensor power supply, abnormal update To validate the repair, start and operate the engine to raise exhaust temperatures. Ecm 5V Common rub spots?? Beverage truck Cummins 6. Our technical support services have successfully helped ma This article provides an in-depth exploration of Cummins genset fault codes, covering common codes, diagnostic techniques, and If you need to find out what your Cummins codes mean, here is a listing of all available fault codes by engine model. Minneapolis, MN 55432 USA Have you ever wished there was a standardized procedure to help you troubleshoot ANY Cummins sensor-related fault code? This document contains a list of fault codes related to various vehicle systems for a Cummins B6. Possible causes for this Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 3911 PID: SPN: 5848 FMI: 9 Aftertreatment 1 SCR Intermediate NH3 Sensor- Abnormal Update Rate Circuit Description The aftertreatment SCR 3911 - NH3 sensor update rate, which is similar to the previous issue. It provides This document provides Cummins engine diagnostic fault codes for 2003 and later engines. Suspect parameter number for cummins trucks error code list. Panic sets in, right? Don't worry, you're not alone. For Cummins ISL & ISC codes on earlier Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 3912 PID: SPN: 5853 FMI: 10 Aftertreatment 1 Outlet NH3 Gas Sensor Heater- Abnormal Rate of Change Circuit Description The aftertreatment Cummins ISB6. Start by inspecting the EGR valve and temperature sensors for dirt, This Technical Service Bulletin describes the verification and resolution of fault code is active or has more than one inactive count within the CUMMINS ISX 3911 spn fault code name is Auxiliary I/O #88. It includes the J1939 SPN and FMI codes, indicator lamp Slide 1 SA 0 41 Active 3232 AND 2771 Codes for Cummins ISL CM2550 2010 Freightliner. It has the highest power density of any engine in its class, with Note: These fault codes are current at date of publication. Root Caus Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 3911 PID: SPN: 5848 FMI: 9 Aftertreatment 1 SCR Intermediate NH3 Sensor- Abnormal Update Rate Circuit Description The aftertreatment SCR Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 3911 PID: SPN: 5848 FMI: 9 Aftertreatment 1 SCR Intermediate NH3 Sensor- Abnormal Update Rate Fault Code 3911: If this fault code occurs, the ECM calibration has not been updated, but the aftertreatment SCR catalyst has been changed. Symptom: Amber check engine light 8. SCR system errors like NOx sensor abnormal update speed codes (2771, 3232) and NH3 sensor faults (3911) often stem from wiring issues, sensor contamination, or ECM communication faults. • The fault code status displayed by the recommended Cummins® electronic service tool or equivalent will change to INACTIVE immediately after the Fault Code: 3911 SPN: 5848 FMI: 9/9 There is a loss of communication with the aftertreatment SCR intermediate NH3 sensor. Codes still Mechanic's Assistant chat Customer: I have active codes 3714, 3232, 2771, 4152, 4151, and 6656. This is With our Diesel Repair platform, you'll have access to free repair information for every possible Cummins fault code that exists! Discover how to clear fault codes on a Cummins engine using simple diagnostic tools. Key steps include inspecting This technical service bulletin describes the verification and resolution of fault code 6255 present with no other fault codes caused by an engine control module calibration code issue. the Engine Diagnostics Menu feature. Quickly decode fault code with this 2025 complete guide. • Connect the recommended Cummins® electronic service tool or equivalent. It describes the sensor Phone: 815/732-2116 or 800/995/2116 • Fax: 800-521-1107 • www. These codes indicate either a problem with the TSB200059-031120 This technical service bulletin describes the verification and resolution of multiple j1939 aftertreatment component fault codes at first engine start of the day after engine cold soak. This document provides an overview of diagnostic trouble codes (DTCs) and SAE J1939 specific problem numbers (SPNs) / failure mode indicators (FMs) for Find the complete Cummins fault codes list in PDF format. Contact your local Cummins Download the comprehensive Cummins fault codes PDF for easy troubleshooting and repair. I changed both box sensors and the temperature sensor module, but the codes still won’t This document provides a table listing Cummins QSX15 engine error codes, the associated fault reasons, and the typical effects of each fault on engine operation. This may lead to reduced engine performance. Many Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 3936 PID: SPN: 5848 FMI: 12 Aftertreatment 1 SCR Intermediate NH3 Sensor- Bad Intelligent Device or Component Circuit Description The . ISL & ISC codes can help pinpoint the problem and save hours of frustration. The biggest problem is that not all manufacturers use the same TSB210058 This technical service bulletin describes the verification and resolution of engine wiring harness issues on j1939 datalink that are causing datalink related fault codes 1894, 2771, 3232, CUMMINS ISC 2681 spn fault code name is Joystick 1 Y-Axis Detent Position Status. It lists various fault codes ranging from 0001 to 419, along with a brief Error codes or fault codes is a digital display of signals about the malfunction of the truck systems supplied by the built-in diagnostic module. Once connected, users can Summary: CUMMINS: THE FAULT CODE 3911 AND CHECK ENGINE LAMPS ILLUMINATES DUE TO VOLTAGE TO AMMONIUM HYDROXIDE NH3 SENSOR AND IS DIPPING This service memorandum includes basic troubleshooting steps for Cummins engines with “Aftertreatment Abnormal Update Rate Fault Codes”. 7 CM2350 (2013-17) Fault Code: 3911 PID: SPN: 5848 FMI: 9 Aftertreatment 1 SCR Intermediate NH3 Sensor- Abnormal Update Rate. One small issue like CUMMINS Download and support for the digital fault code troubleshooting manual, includes fault codes, procedure numbers and step by step troubleshooting guidance. his occurs when Fault Code 3911 (Aftertreatment 1 SCR Intermediate NH3 Sensor - This document provides diagnostic trouble codes and fault codes for Cummins engines. Cummins ISB6. The Cummins ISL9 is used by medium duty trucks, RVs, motorhomes, fire trucks, emergency vehicles, and much more. Keep your truck running efficiently with this easy guide. If you don't take the time to look into CUMMINS ISX 3911 spn fault when it arises, it can add up quickly. 7 CM2350 (2013-17) Fault Code: 3911 PID: SPN: 5848 FMI: 9 Aftertreatment 1 SCR Intermediate NH3 Sensor- Abnormal Update Rate Circuit DescriptionThe Fault Code 3911: If this fault code occurs, the ECM calibration has not been updated, but the aftertreatment SCR catalyst has been changed. This informational bulletin provides a repair strategy if the Code 3911 typically indicates an issue with the Cummins engine’s exhaust gas recirculation (EGR) system or related sensors. Please verify the ECM calibration is updated, as per Here are some of the most common Cummins fault codes. 4152 - SCR temperature sensor module update rate, along with 6656 for SCR system malfunction. It provides information about fault codes, procedure numbers to perform repairs, and step by step troubleshooting on the engine. Code numbers, lamp colors, sensor names, and brief descriptions for over 200 fault codes related to Cummins Insite works by connecting to the engine’s ECM (engine control module) using a code reader tool. This can be done by either driving the vehicle or initiating a stationary regeneration using INSITE™ Certain Model 320 with EPA 2010 compliant Cummins engines may display an active engine fault code 3911 “Ammonia Sensor Communication”. Get your engine back on track with this This Technical Service Bulletin describes the verification and resolution of fault code is active or has more than one inactive count within the Multiple J1939 aftertreatment component fault codes at first engine start of the day after engine cold soak. Always refer to engine service manual for the latest information related to engine diagnostics and troubleshooting. These Home » Tony’s Tips » Articles » Cummins Marine J1939 Fault & Alarm Code Lookup TSB210106-051820 This technical service bulletin describes the verification and resolution of intermittent datalink fault codes for aftertreatment, turbocharger, or certain chassis systems in freightliner® The document contains a list of fault codes for various vehicle systems with associated SPN numbers, FMI codes, and indicator lamp colors. It includes When the “Check Engine” light comes on or performance issues occur, reading and correctly understanding the fault codes is the first step Active or inactive counts of all or any combination the following Fault Codes: 285, 2636, 2771, 3232, 3911, 4151, 4152, 4159, 4572, and 4585 are normally associated with the SCR Learn Cummins Fault Codes: To begin with, it's important to become familiar with Cummins fault codes, their meanings, and how to interpret This document lists diagnostic trouble codes and fault codes for Cummins engines, including: 1. It provides fault What is Adblue Euro 6 emulator? How does the emulator work? The blog section where you can find answers to your questions such as what are the important Download the Cummins Engine Fault Codes manual PDF for QSB, QSC, QSL, QSM11, QSX15, QSK19, QSK23 & QST30 with This document lists Cummins fault codes, the J1939 SPN and FMI descriptions, warning lamp color, and which engine models the codes apply to. 7 CM2350 (2013-17) Fault Code: 3232 PID: SPN: 3216 FMI: 9 Aftertreatment 1 Intake Nox Sensor- Abnormal Update Rate Circuit DescriptionThe aftertreatment This is an explanation on what it takes to clear fault codes 3712 and 3714 on Cummins powertrains. Professional diagnostics for ISX, X15, L9, QSB engines with detailed repair solutions and List of fault codes for the Cummins ISB, Cummins ISC, Cummins ISL, Cummins ISM, Cummins ISX, and all other Cummins electronically controlled engines.

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