Spn 1548 fmi 5. They concluded that the CPC was failing.
Spn 1548 fmi 5. ACTIVE FAULT CODES (3) SPN 1548 FMI: 3 SPN 1548 FMI: 4 ECM Serial Number: ECM Model: Discover more answers Diagnostics Active HVAC (1) Diagnostic Code: SPN 1548 FMI 5 I have A SPN 1548 FMI 5 along with a SPN 639 FMI 2 code in my 2016 Freightliner cascadia (dd15 engine) Cascadia Discover the complete SPN fault codes list in this Caterpillar troubleshooting guide. 1548 spn fault code name is HVAC Duct Temperature. Wondering if I could get the troubleshooting steps for these codes I HAVE FREGHTLINER CASCADIA 2015 WITH DD15 GIVING CODE SPN 3361/ SPN4334/ AND SPN 5246. Clean or replace the dosing valve if necessary. SPN 1548 FMI 5 relates to the EGR valve position sensor malfunction, causing improper exhaust gas flow. txt) or read online for free. This could indicate a short in the wiring harness for the outside temperature sensor or a malfunctioning sensor that needs to be replaced. If you don't take the time to look into Spn 1547 Fmi 04 engine problem when it arises, it can add up quickly. FAQs How to reset or clear faults codes on a Freightliner Cascadia? Customer: Good morning I have a 2011 Freightliner Cascadia Dd15 with a couple of codes if you can help1. 2013 day cab frieghtliner with dd13 throwing spn 1548 fmi5. If you don't take the time to look into Spn 1548 Fmi 03 engine problem when it arises, it can add up quickly. This could mean there's a faulty sensor or an issue with the wiring harness or connector pins between the sensor and the control module in that circuit. I have ambient temperature sensor code 171 fmi 3 Discover more answers Diagnostics Active HVAC (1) Diagnostic Code: SPN 1548 FMI 5 I have A SPN 1548 FMI 5 along with a SPN 639 FMI 2 code in my 2016 Freightliner cascadia (dd15 engine) Cascadia The SPN 1548 FMI 5 code indicates the HVAC duct temperature sensor reads below normal, often due to a faulty sensor or wiring issues. SPN 3216 FMI 3 Scr Inlet Nox Sensor Circuit Failed High: Aftertreatment 1 Intake Nox Voltage Above Normal, Or Shorted To High Source; Nox Raw Sensor (on Acm) Signal Range Failed High. The failure mode of the DTC is determined by evaluating the electronic signal from the suspect circuit. I need I have a 2015 Freghtliner Cascadia day cab. Apr 17, 2023 · When it comes to fault code lists, there are many manufacturers that have created their own. ###-##-####fail5 3. If there are no additional fault codes, it may be a straightforward solution, such as replacing fuel filters to address a low power issue. If the resistance is greater than 5 ohms, repair the open wire between pin 1 on the line heater 5 harness side connector and pin 16 of the ACM2. It indicates a problem with the COTC sensor or the wiring harness that controls the air temperature in the cab or sleeper. 85 Monitor Sequence None Execution Frequency Continuous when enabling Jan 27, 2020 · SPN 523002 FMI 12 It keeps telling me adaptive cruise control not working. DD13 with 3364 FMI 2, Spn 4364 FMI 18, 1548 FMI 4. Discover more answers I have A SPN 1548 FMI 5 along with a SPN 639 FMI 2 code in my 2016 Freightliner cascadia (dd15 engine) Cascadia SPN 647 FMI indicates a fan solenoid circuit fault. SPN 1548 FMI 5. Mar 29, 2023 · 5. Begin by inspecting the pressure sensor wiring harness for breaks or corrosion. For AC problems, verify refrigerant levels; low Freon can prevent compressor engagement, affecting fan operation. Thank you DTC 5, SPN 1548, FMI 3: DISCHARGE TEMP SENSOR HIGH Possible Causes: Discharge temp sensor wire shorted to power DEFINITIONS “SPN” represents the Suspect Parameter Number. Discover more answers 2011 freightliner Cascadia Hvac duct temperature sensor. The addresses list ranges from 0 to 252 that correspond to various vehicle controllers DTC SPN 421 FMI 5 indicates an open circuit between low and high-pressure sides in the sensor system. However, without additional context or details about the specific engine or vehicle model in question, I am unable to offer a comprehensive explanation of the fault code. SPN 702 fmi 5 “optional output connection 3 pin 08. If anyone has information about these codes, please assist me. Regular maintenance of the Engine Fault codes (MID, PID, SID, FMI) FREIGHTLINER Component Codes (MID) MID / Description / Old Text Message / New Text Message * 128 Engine # 1 ENGINE ENG 130 automatic transmission – † Trans 136 Anti-lock Brake System (ABS) TRCTR BRK Brake 140 Panel, Left INSTRCLST Instr 142 Panel, Right # 1 INSTRCLST MGMT 172 Diagnostic System DIAGNOSTC DIAG 179 Black Box LOG CMPTR CMPTR 181 The SPN 1548 FMI 5 code indicates an HVAC duct temperature sensor fault, causing incorrect readings. I obtained a new CPC from the dealer and had it programmed. Additionally, check wiring harness integrity and ECM fault codes. I have an inside/outside temperature gauge that came out of a Freightliner semi truck. Teknisi Thursday, November 14, 2024 Caterpillar Electronic Technician Discover more answers 2015 Freightliner Cascadia dd15 Vin 3AKJGLD5XFSGG6700 Can you tell me the freon capacity? I have a 2015 Freightliner cascadia with a DD15 engine. Freightliner Forward Road Image Processor N/AN/A Measure the resistance between pin 1 on the line heater 5 harness side connector and pin 16 of the ACM2. Regular INACTIVE FAULT CODES (1) Fault Description: Engine Injector Metering Rail 1 Pressure FMI Description: Data Valid but below Normal Operating Range - SPN 157 FMI: 17 Least Severe Level Count: 1 Suspect parameter number (SPN), failure mode indicator (FMI) and occurrence count numbers are listed. Customer: ok Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far? Customer: yes I am fixing Mechanic's Assistant: Is 2015 Freightliner Coronado with Detroit engine and 18 speed. Cab 33 521908 fail 5 2. It highlights any differences from previous releases and includes a table listing the DTC/SPN/FMI for Dec 11, 2019 · I need some help with some codes on my truck, can anyone help me please. I have fault codes SPN 639 FMI 2, SPN 1548 FMI 5, SPN 516497 FMI Cummins spn/fmi code list from 1 to 9999999 and fault code list from 111 to 9999. Eng 1 spn 100 fail 1 Vin # 1FUJGLDR8BLAY2082 INACTIVE FAULT CODES (6) Fault Description: Undefined FMI Description: Data Erratic, Intermittent or Incorrect Nov 9, 2016 · SPN 925 FMI 5 optimized idle weirdness Discussion in ' Freightliner Forum ' started by PermanentTourist, Sep 2, 2018. On the dash I have code 545 25 on diagnostic link I have HVAC Duct tempt- I have cascadia frightliner 2019. Start by checking wiring harnesses and connectors for damage or corrosion. Code 545 25 SPN 523318 indicates a sensor or module communication failure in the DD15 engine. The fault code SPN 5488 means - Scr Line Heater #5 Circuit Failed Open; Aftertreatment 1 Diesel Exhaust Fluid Line Heater 5 State Current Below Normal Or Open Circuit; Open Load On Function "am_pwm_line_heating_5" This is the Doser to Tank DEF line. 5. SPN 1548 FMI 5 FREIGHTLINER CASCADIA - HVAC DUCT TEMPERATURE Q&ADisclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. J1939-Fault-Code-SA-SPN-FMI-Descriptions - Free download as Excel Spreadsheet (. Cleaning or replacing faulty sensors can restore proper engine function. Follow our easy guide to resolve FMI 5 and keep your equipment running smoothly. This document provides an overview of diagnostic trouble codes (DTCs) and SAE J1939 specific problem numbers (SPNs) / failure mode indicators (FMs) for Allison B161, C161, and D161 software releases. SPN 3482/FMI 5 Diagnostic - Free download as PDF File (. If you don't take the time to look into 1548 spn fault when it arises, it can add up quickly. 6. Clearing codes after repairs and verifying sensor functionality can resolve the check engine light. This number represents the type of failure detected. 2010 Freightliner Cascadia with DD15 motor. Generally, SPN (Suspect Parameter Number) pertains to a specific parameter or data value associated Suspect Parameter Number (SPN) and Failure Mode Indicator (FMI) full code list. Bendix is one of those companies Fortunately, the Bendix fault code list is not 50,000 numbers strong. The truck won’t start, and when I tried to jump-start it by connecting cables to my battery post and starter solenoid, the gas pedal was unresponsive. Title distribution may be delayed up to 30 days from verification of funds. Learn what FMI 5 means, its common causes, and how to fix it quickly. 5, Rear: 445/50R22. If you suspect your truck is suffering from one of these issues, look into replacing those small components to save money down the road May 3, 2024 · Problema con el sensor aire acondicionadoFreihgtliner cascadia/Aire acondicionado/SPN 1548 FMI 5/ sensor de temperatura SPN 1548 FMI 5 is an engine fault code defined by the Society of Automotive Engineers (SAE) standard J1939 diagnostic system. This diagnostic condition is typically Fuel Cutoff Valve (FCV) Sensor open circuit. But it does have more than enough fault codes to keep you busy once they Jun 19, 2025 · 🔧 What Is an SPN Code? SPN stands for Suspect Parameter Number. Check the DEF dosing valve for clogging or electrical issues. - YouTube Spn 1547 Fmi 04 problem code is about Climatrak Core Temperature Sensor Voltage Too Low - Less Than 01 V Dc Indicates That The Sensor Resistance Is Less Than52? (356?f Or 180?c). You can view detailed repair information, for free, on every one of these fault codes on Diesel Repair. SPN- suspect parameter number identifies the specific component or condition that is triggering the fault code. Customer: I have two fault codes, SPN 810 FMI 8 and SPN 639 FMI 9, on my 2016 Freightliner. My question is, where is the COTC sensor located and what does Customer: SPN 639 FMI 2 shows an invalid data lookup code 226 -106, and SPN 802 FMI 4 indicates Bendex codes. Combined with an FMI (Failure Mode Indicator), you get a full picture of what’s wrong. Customer: 2014 freightliner Cascadia codes spn 4354 fmi 18 & spn 3364 fmi 2. Unplugging the solenoid causing the fan to run suggests a control or grounding issue. Tires Front: 275/80R22. I switch out the control unit and code still remained active. Inspect and test the duct temp sensor and wiring for damage or corrosion. Notes Trailer not included, Dash warning indicator: Check engine, Exhaust system, High soot level, Parked regen req'd, Diagnostic code SPN 1548 FMI 5. His low coolant light came on suddenly during a drive, and shortly afterwards he heard a loud bursting sound. For SPN 1548 FMI 5 HVAC code, inspect the HVAC control module and related sensors. Since replacing the solenoid didn’t help, check wiring harness and connectors for shorts or opens. Get information about Suspect Parameter Number (SPN) and Failure Mode Identifier (FMI) fault code list and read descriptions before engine troubleshooting diy process. Common Fix: An engine manufacture diagnostic tool/ software would have to be used to force a regeneration on the unit’s exhaust system. truck had new nox sensors put in earlier this year. This text description is used to describe the SPN – FMI. Use Sep 12, 2022 · Trouble codes are populated following a protocol, which is just a form of communication for computer networks. This will cause blowing ambient air inste Discover more answers DD13 with 3364 FMI 2, Spn 4364 FMI 18, 1548 FMI 4. Please let me know if it's a Kenworth truck. Could you please provide the year and model of your Cascadia? Customer: It's a 2017 Freightliner Cascadia. Inspect the sensor and related vacuum lines for leaks or blockages. Inspect the duct temperature sensor for damage or poor connections. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc. How can I help? Customer: My husband has a 2017 freightliner cascadia with a DD15 engine. Inspect the duct temperature sensor located in the HVAC ducts for damage or disconnection. . Subscribe Subscribed 241 86K views 5 years ago Cascadia outside air temp sensor replacemore Mar 28, 2018 · Hello, guys! Recently I’ve got this problem: Diagnostic code spn 647, fmi 5. Sioux Falls, SD 57107 Customer: My truck problem spn code 3238 fmi 2 Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. Customer: SPN 1548 FMI 5 SPN 520349 FMI 14 SPN 520372 FMI 16 SPN 520349126 SPN 520372 Cascadia. 4 SPN 3660/FMI 6 - EPA10 - GHG14 Injector cylinder #2 amplifier control valve – valve shorted circuit SPN 3660/FMI 6 Description Injector Cylinder #2 Amplifier Control Valve, Valve Shorted Circuit Monitored Parameter Injector Cylinder #2 Amplifier Control Valve Typical Enabling Conditions fis_nop_act greater than 1. Def light above def gauge flashing and check andSPN 1548 FMI 5 indicates a Diesel Exhaust Fluid (DEF) dosing valve fault. pdf), Text File (. xls / . Source addresses and DTC descriptions are presented in plain text. This number identif es the item for which diagnostics are being reported. Start by verifying wiring harness integrity around the CPC4 module and sensors. In the hvac unit, there is a temp sensor. The ECM / ECU also attaches a text description to the message that is transmitted over the J1939 data link. Spn 1548 Fmi 03 problem code is about Climatrak Outlet Air Temperature Sensor Voltage Too High - Greater Than 48 V Dc Indicates That The Sensor Resistance Is Greater Than 60k? (-22?f Or -30?c). Feb 4, 2023 · Does your diagnostic system display engine Fault Codes as SPN and FMI? Learn how to decode SPN and FMI and identify the problem! SPN 3701 - Diesel Particulate Filter Status Level 3-5 This occurs when the unit has not been able to have a successful regeneration, so the particular matter accumulation has an excessive amount inside the DPF. Apr 26, 2023 · The SPN FMI fault codes work for all those brands and other ones. FMI - Failure Mode Identifier describes the type of failure detected in the subsystem identified by the PID or SID or PPID or PSID. After doing some research, I found out that it relates to the COTC sensor, indicating a short to battery or an open circuit. Check sensor connections and wiring harnesses for damage or corrosion. It's a Kenworth truck. Found 1 result (s) for your search Diagnostics Active HVAC (1) Diagnostic Code: SPN 1548 FMI 5 Mechanic's Assistant chat Aug 6, 2012 · Freightliner HVAC unit discharge Temperature sensor voltage > normal Discussion in ' Freightliner Forum ' started by smfry, Nov 5, 2013. CHS, Inc. What do you think is the reason? How to fix it? Any advices? Freightliner Cascadia Evolution 2016 DD15 Thank you! The codes are displayed in the form “SPN – FMI”. Find the complete SPN FMI fault codes list for Caterpillar equipment and troubleshoot problems effectively using this comprehensive guide. I will have them check everything out though. It tells you which system or component is triggering the fault. SPN 523330 FMI 4 indicates a turbocharger boost pressure sensor fault, often due to wiring or sensor failure. CASCADIA SPN 1548 FMI 4 - Free download as PDF File (. Get free wiring diagrams, part numbers, and troubleshooting guides. Refer to Failure Mode Indicators (FMI) below for more information. One small issue like 1548 can cause a larger component to become damaged without taking the time to investigate. Mine is actually code sys 25 SPN 523318, which is the blower motor I believe. Feb 27, 2025 · Dtc 5, spn 1548, fmi 3: 1207 = engine ecu temperature (obsolete use spn 1136) 1245 = engine timing actuator #2. Inspect the boost pressure sensor and its harness for damage or corrosion. Apr 6, 2023 · Learn what this code means and how to fix it for your Freightliner vehicle. Apr 24, 2017 · Fault sys 25 1548 fml 5 Discussion in ' Trucks [ Eighteen Wheelers ] ' started by cwaldo, Mar 23, 2018. 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. HVAC Duct Temperature - Current below normal or open circuit. The document contains lists of addresses and SPNs (Suspect Parameter Numbers) that are used to identify components and parameters in commercial vehicles. TxId: 49 SPN: 523530 FMI: 31 Count: 1 TxId: 42 SPN: 524011 FMI: 31 Count: 8 TxId: 232 SPN: 524011 FMI: 19 (Data Error) Count: 8 TxId: 11 SPN: 790 FMI: 7 (Not Responding Properly) Count: 4 TxId: 0 SPN: 1592 FMI: 19 (Data Error) Count: 6 TxId: 17 SPN: 520215 FMI: 6 cg3 Active Fault(s) Present I contacted roadside assistance, and they scanned the truck with diagnostic tools, revealing several codes: SPN 91 FMI 8, SID 231 FMI 9 J1939 EEC1 TIMEOUT, SPN 3510 FMI 7, SPN 525 FMI 7, and SPN 1548 FMI 4. 545 25 spn 1548 fail 5 4. While they relate to the standard SPN and FMI codes, some of these lists can be confusing if you are not paying attention. FREIGHTLINER CASCADIA 2015 DD15. This can trigger engine derate, limiting speed to 55 mph. Disclaimer: This information is AI-generated and intended for general guidance only. 25 1548 04 The COTC sensor is showing a short to ground. Quickly diagnose and easily resolve any issues in your Cat equipment. It also stopped Auto Shift and have to do manual shift. May 13, 2017 · Spn 1590 Fail 19 Adaptive cruise disabled. SPN 1548 FMI 5 indicates a turbocharger boost pressure sensor fault, often due to sensor failure or wiring issues. Clean or replace the sensor if faulty. during regen ppm peaks at 50% sometimes nox out is higher than nox in. They concluded that the CPC was failing. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks and shortcuts. Try this before bringing in truck to the shop, due to controller located next to cup holder it is bound to get wet. INACTIVE FAULT CODES (1) Fault Description: Engine Injector Metering Rail 1 Pressure FMI Description: Data Valid but below Normal Operating Range - SPN 157 FMI: 17 Least Severe Level Count: 1 The fault code SPN 1548 FMI 5 pertains to the HVAC system duct temperature. FMI” is the Failure Mode Indicator. Inspect the fan relay and PCM signals. 7 Active Fault(s) PresentConsumable Fluid(s) Low SPN 1548 FMI 5 points to a turbocharger boost pressure sensor fault. SPN-1548 FMI 5 indicates HVAC duct temperature sensor faults, causing blower issues. 2015 Freightliner Cascadia dd15 Vin 3AKJGLD5XFSGG6700 Can you tell me the freon capacity? I have a 2015 Freightliner cascadia with a DD15 engine. While SPN tells you where the issue is, FMI tells you what’s wrong. Aug 7, 2012 · 09 prostar a/c replaced everything still not working Discussion in ' International Forum ' started by radicastuff, Aug 7, 2012. Wondering if I could get the troubleshooting steps for these codes Jan 8, 2025 · Dtc 5, spn 1548, fmi 3: 1207 = engine ecu temperature (obsolete use spn 1136) 1245 = engine timing actuator #2. Suspect parameter number for cummins trucks error code list. Myself. Can you describe any symptoms or issues you’re Dec 27, 2018 · Sometimes your truck cab gets stuck blowing one temperature of air and won't change. Oleg Filippov 116 subscribers Subscribe Apr 24, 2017 · SPN - 1548 FMI 5 “HVAC DUCT TEMP”. SPN FMI list - Free download as PDF File (. ” Truck I have A SPN 1548 FMI 5 along with a SPN 639 FMI 2 code in my 2016 Freightliner cascadia (dd15 engine) Cascadia Customer: A code appeared on the dashboard of my truck. ), or to I just seen the following fault code from my Keep Truckin ELD: SPN-1548; FMI 5; Description says: HVAC Duct Temperature; Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. Mechanic's Assistant: It seems you’re encountering some specific fault codes. 5 cylinder nozzle 5 cyl 5 injectr cyl 5 injectr. I have fault codes SPN 639 FMI 2, SPN 1548 FMI 5, SPN 516497 FMI Customer: Hello, is there a cost associated with asking a question? Mechanic's Assistant: Hi there. Mechanic's Assistant: What's the make/model of your 2017 freightliner? Customer: He hasn't seen Discover more answers Diagnostics Active HVAC (1) Diagnostic Code: SPN 1548 FMI 5 Feb 17, 2025 · Find fault codes and repair solutions for Detroit Diesel DD15 (2017-2020). Where is located at? 2014 freigl. Inspect wiring harness and connectors for damage or corrosion. Code 1548 fmi 5, current below normal or open circuit. both codes are previously confirmed previously active. This will show you how to reset your HVAC system on Freightliner Cascadi I have A SPN 1548 FMI 5 along with a SPN 639 FMI 2 code in my 2016 Freightliner cascadia (dd15 engine) Cascadia Fault codes SPN 639 FMI 2, SPN 1548 FMI 5, and SPN 516497 FMI 12 indicate sensor and control module faults. The part number is A22-46885-000. Dec 19, 2018 · I have a 2012 cascadia dd15 that is showing 2 fault codes which are: Fault codes eec 61 4364 fail 18 545 25 spn 523318 fail 7 I did some research 2022 freightliner vin na1364 has hvac code 1548 3. Sep 6, 2015 · 401. I have a 2007 7300 IHC truck and I am working on the air conditioning and I tried to recharge it, but I cannot get the Feb 10, 2025 · Fault Codes for Detroit Diesel DD15 Gen 5 Below is a comprehensive list of fault codes you may encounter on a Detroit Diesel DD15 Gen 5, which covers model year 2024 & 2025. Mechanic's Assistant: Thank you for sharing the model and year. Nov 14, 2024 · SPN 1675 - FMI 5 (Diagnostic Code: Starter Motor Relay - Current Below Normal) Blog. This is crucial for determining whether you’re looking at a simple wiring issue or a deeper component failure. 1 120-pin harness side connector. One of the most common protocols used in trucking is J1939. Also, verify DEF quality and Dec 23, 2022 · Home Freightliner Cascadia / Detroit DD13, DD15, DD16 & Cummins ISX etc. Jun 13, 2025 · What are FMI codes? FMI codes work alongside SPN (Suspect Parameter Number) codes to describe what type of fault occurred. I have fault codes SPN 639 FMI 2, SPN 1548 FMI 5, SPN 516497 FMI. Clearing codes after repairs and performing a system reset can restore normal operation. Minnesota title. Says it could be a rotor not moving freely or something like that, or the blower is just ######. SPN-3060 FMI 18 relates to engine cooling system monitoring; check coolant level, radiator fan operation, and sensor connections. Regularly clean connectors and perform ECM software updates to maintain system reliability. probably due the the abs issue below spn 792 fmi 5 Right side axle 2 wheel speed sensor low current or open circuit. Thanks in advance. xlsx), PDF File (. Code for spn 3609 fmi 21 DPF intake pressure drifted low I have a 2015 Freightliner cascadia with a DD15 engine. Let’s look at the most common FMI categories: Component failures & wiring issues: These I got a freigliner cascadia and I'm looking for 10A circuit breaker F43 . Still getting air in the sleeper but now the fan level 8 (max) is more like a level 4. This just tells you what is wrong with the component that is not working right. nfwv 40js4 mtor on69 oeuaje lkt17 djbsai jrd gbcar wz6q
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