Eec code freightliner 2016

2016 Freightliner Cascadia.fault code TxId: 61 SPN: 5443 - Aftertreatment 1 Hydrocarbon Dosing System FMI: 15 (High—least severe) Count: 1can you help me with what this code means? ... I got a eec 61 code JA: What is the complete model and serial number of your machine? Customer: Freightliner cascadia evolution dd15 JA: Are you fixing this ...

Looking for what “business casual” actually means? Find out more in our quick guide to the business casual dress code. Human Resources | What is WRITTEN BY: Charlette Beasley Publi...2011 dd15 getting code EEC 061 SPN004356 line heat 3 05. 2011 freightliner Coronado Detroit Dd15. Traced def line 3 out - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... We have a 2016 Freightliner Cascadia and both Check Engine.paint code: 1st intaxle mod: paint mfr: pto. mod: detroit dd15 14.8l 505 hp / 1625 rpm, 19 dt12-1750-oh1 heavy duty 12-speed overdr detroit da-f-13.3-3 13,300# ff1 71.5 kpi mt-40-14xp 40,000# r-series tandem rear mt-40-14xp 40,000# r-series tandem rear elite bc paint c cab color a: ls007eb engine no: trans no: frontaxle no: 1st intaxle no: 2nd ...2013 Freightliner Cascadia DD15 EEC 61 SPN 3364 Discussion in 'Heavy ... Jul 12, 2017 Texas (trucking since 02/2013) 0. I just got this code on my 2013 Freightliner Cascadia DD15. It seems like I may have a problem with my DEF quality, but I drove over 500 miles from the last time I filled my DEF tank. ... 2016 cascadia odometer, trip ...What does the Freightliner yellow engine light mean? A yellow "Check Engine" light typically indicates an issue that needs to be investigated. Usually, it is not a mission-disabling problem, just something that needs attention. If the yellow light stays on, it means that whatever it is happening is actively happening.

Eec61 3364 fail 2, eec61 4364 fail 18, Eec 5246 fail 15 Eec 5246 fail 16These are the four codes that pop up only when I go uphill and not all the time but a couple times a week I have ... 2016 freightliner cascadia. 4 codes popped up while mil ligth yellow check engine and def light blinking. eec 61 3364 fail 2 eec 61 4364 fail 18 eec61 5246 ...I got a malfunction code of eec 61, diag 2, 2015 freightliner cascades vin#: 1fujgLd58fLgb9662, Nothing yet, No - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... EEC 61 code is on and then code d1AG2 it's a 2016 freight.I have a fault code 522116 on my cascadia. 2012 freightliner cascadia with a Detroit diesel. I am, I did a regen hoping - Answered by a verified Technician ... 2016 Freightliner Cascadia dd15 Detroit engine. I have a fault code on. It is txld: ... Cab33 spn 522116 fail 2 Eng 1 spn 108 fail 3 Eec 61 spn 108 fail 13And heres the VIN ju ...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. Yes; perform a parked regeneration and recheck for the fault code. If the fault code returns, Go to step 4. No; Go to step 4. Check for other fault codes.2016 freightliner cascadia. 4 codes popped up while mil ligth yellow check engine and def light blinking. eec 61 3364 fail 2 eec 61 4364 fail 18 eec61 5246 fail 15 eec 61 5246 fail 16 Did a ... I have the following fault codes for a 2011 Freightliner Cascadia: EEC 61, spn 3364, fail 2 EEC 61, spn 3216, fail 4 EEC 61, spn 3364, fail 17 EnG ...488.2 SPN 4355/FMI 5 - EPA10. Line Heater 2 Open Circuit. Show/Hide Checkboxes. Check for multiple codes. If SPN 4355/FMI 5 and SPN 4354/FMI 5 are present, repair open between pin 9 of the ACM 120-pin connector and pin 2 of line heaters 2 and 1. If only SPN 4355/FMI 5 is present, Go to step 2.Eec 61 code freightliner 2012; Freightliner code eec 61; Tom Holland Signed Funko Pop Figures. In order to protect our community and marketplace, Etsy takes steps to ensure compliance with sanctions programs. "Y'know, between the three of us, I was like, Oh s---, this is going to be interesting, " he continued. Tom Holland Signed …

The Code of Hammurabi is an important artifact because it sheds light on laws in Babylonia. Learn why the Code of Hammurabi explains "an eye for an eye." Advertisement When we thin...2016 freightliner cascadia. 4 codes popped up while mil ligth yellow check engine and def light blinking. eec 61 3364 fail 2 eec 61 4364 fail 18 eec61 5246 fail 15 eec 61 5246 fail 16 Did a parked reg ... 2016 cascadia fault codes eec 61 fail 15 spn 3720. Had dpf filters cleaned 1 month ago.Second Opinion] 2016 Freightliner Cascadia dd15 Detroit engine. I have a fault code on. It is txld: 61 SPN: 3556 Aftertreatment 1 hydrocarbon Doser 1 FMI 18 (low-moderate severity) count 1 Can you hel … read moreJan 29, 2017 · Jan 28, 2017. #3. This diagnostic code is typically Regulatory Fault Ignored - Derate On. Note: (EPA10 ONLY) If SPN 5246/FMI 0, 15 or 16 are the only fault (s) present, follow troubleshooting procedure for SPN 3361/FMI 7 (DEF Unit - Unable to clear Restriction). The 3361/FMI 7 code, is more then likely your metering unit is stopped up and needs ... We often get many questions on How to Pull Codes off a Dash for a Freightliner Cascadia 2014-2017 so we made a quick video tutorial. Call Us with any questi...

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Fault 1 EEC 61 spn 3556 Fail 1 2014 freightliner cascadia. FSFR2958. Just seen the engine light and pulled over to look - Answered by a verified Technician. ... We have a Code EEC SPN3597 FAIL THE check engine light will go off and the WIL will stay on. The DEF is full ...The yellow light was flashing by the def gauge plus check engine light. Mariachi taxi ١٦ شعبان ١٤٣٩ هـ... "EEC 61 is basically saying there is a problem in the After-treatment control module.This is the module the engine uses for the after-treatment.. 61 is the Aftertreatment Control Module. 904-7631 Coolant Level Sensor N9267001 RP31640002 Fits For PETERBILT KENWORTH TRUCKS.Same changes as the GHG14 but new title. Table 1. Table 2. 1. Check for multiple codes. a. If SPN 4334/FMI 4, and SPN 3510/FMI 4 are present, repair short to ground between pin 5 of the DEF dosing unit and pin 84 of the Aftertreatment Control Module (ACM). b. If only SPN 4334/FMI 4 is present, Go to step 2.What does codes 54 and 55 mean on my 2001 freightliner columbia 60 series detroit. code 54 (DDC# ( flashed ) refers to vehicle speed sensor fault. code 55 (DDC# flashed)refers to other ECU fault ( this fault is logged in conjunction with another fault to indicate missing information from another ECU. it also refers to J1939 data link fault.

The EEC-IV monitors the Data Communication Link for faults. If a fault occurs in data communication a continuous Memory Code is set in the EEC-IV. The DCL Codes (529 for EEC-IV and 533 for EIC) can occur separately or together. These codes are not immediately cleared when data communication is restored.Or going uphill with a heavy load. eec 61 3364 fail - Answered by a verified Technician. ... 2016 freightliner cascadia. 4 codes popped up while mil ligth yellow check engine and def light blinking. eec 61 3364 fail 2 eec 61 4364 fail 18 eec61 5246 fail 15 eec 61 5246 fail 16 Did a parked reg ...Oct 23, 2021 · and remove the code. 3223 7 NOx RAW Sensor not ready after dewpoint enables check.Possible problem with the wiring harness to the sensor or a faulty sensor itself if the wiring harness checks out okay. EEC 61 is basically saying there is a problem in the After-treatment control module. This is the module the engine uses for the after-treatment ... I have code EEC 61 3251 Dash Lights, 2016 Freightliner I have code EEC 61 3251 Dash Lights JA: I understand that youre experiencing code EEC 61 3251 on your dash lights, and the Equipment Mechanic will be able to help you with this issue.Page 2 of 531 Warning Summary • Keep all sources of ignition away from gasoline vehicles while the fuel system is being serviced. Even if the tank and fuel lines are empty, there may still be flammable vapors near the vehicle • DO NOT disconnect any gasoline hoses unless they have been completely drained using the proper procedure. • Always unplug the fuel …Jun 10, 2019 · Second Opinion] 2016 Freightliner Cascadia dd15 Detroit engine. I have a fault code on. It is txld: 61 SPN: 3556 Aftertreatment 1 hydrocarbon Doser 1 FMI 18 (low-moderate severity) count 1 Can you hel … 2016 freightliner cascadia. 4 codes popped up while mil ligth yellow check engine and def light blinking. eec 61 3364 fail 2 eec 61 4364 fail 18 eec61 5246 fail 15 eec 61 5246 fail 16 Did a parked reg …Good evening. The EEC 61 can be your fuel filters plugged or the DEF tank is empty. Most likely it thinks the DEF tank is empty because you have the 545 25 codes which is the sensor for the level valve in the tank itself. This will also cause you to have the issue wit hteh dpf system when that level sensor is faulting.2011 dd15 getting code EEC 061 SPN004356 line heat 3 05. 2011 freightliner Coronado Detroit Dd15. Traced def line 3 out - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... We have a 2016 Freightliner Cascadia and both Check Engine.Mar 9, 2016 0 Hi I have a 2013 Cascadia. it's showing fault code eec 61 spn 3251 dpf pressure 02 . there was check engine n malfunction indicator lamp on but check enine went away.I have default code EEC 6 1. FAIL 0 FAULE 1. 2016 Freightliner cascadia. Cascadia. No sir - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... 2016 cascadia fault codes eec 61 fail 15 spn 3720. Had dpf filters cleaned 1 month ago.

Eec61 fault 5 spn5488. 2016 freightliner cascadia dd15 - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... 2012 Cascadia engine code eec 61 JA: What is the complete model and serial number of your machine? Customer: freightliner Cascadia dd15 last 6 of vin bk4763 JA: Are you fixing ...

Hello,Pearl I have a 2016 freightliner coronado My ABS Ignition fuse in the module behind the driver seat keep blowing. My odometer has. Daniel Wilson. 7,141 satisfied customers. I have two codes. Freightliner cascadia 2016. Codes are as.Hi , truck keeps going into derate 2016 freightliner cascadia. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks and shortcuts. ... 2016 cascadia fault codes eec 61 fail 15 spn 3720. Had dpf filters cleaned 1 ...Freightliner Codes; Trouble Code Fault Location Probable Cause; P1000 – P1099 (Fuel and air metering and auxiliary emission control) P1000: Ignition coil, 5 -primary circuit …My 2012 Cascadia is throwing the same codes. We had the DEF pump filter changed, and that seemed to fix the problem. IIRC,... Log in or Sign up. ... 2016. Animosus, Aug 17, 2016 #13. Aug 17, 2016 #14. daf105paccar Road Train Member. 6,564 7,293. ... VA at Freightliner. Def filter from fleet supply store is 27$ but have to wait 2 weeks for delivery.85239 Answers. SOURCE: 2012 freightliner cascadia engine code ECU 1. What does this mean. Ecu 1 fault means the engine EMC has a internal fault and needs to be replaced. Most of the time with this code It's not the ecm itself it's usually a wiring problem going to ECM.I got an electrical problem detected just came on. Mechanic's Assistant: I understand that you have an electrical problem detected in your vehicle. When did this warning light come on? 2016 Freight liner cascadia. Mechanic's Assistant: Have you noticed any other symptoms or issues with your vehicle's electrical system? Freightliner CascadiaSPN 3361/FMI 31. Description. The fault indicates that the Diesel Exhaust Fluid (DEF) Dosing Unit was switched off before completing a cycle. Monitored Parameter. DEF Pressure. Typical Enabling Conditions. When service routine is enabled and during infrequent in-use checks under non DEF dosing conditions. Monitor Sequence.

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13. Disconnect the Aftertreatment Control Module (ACM) 120-pin connector. 14. Inspect the ACM 120-pin connector and the 120-pin harness connector for signs of corrosion, spread, unseated (pushed out) or damaged pins, connector seal for damage (signs of water or oil intrusion) or signs of wire damage.I received a eec on dash board with check light both on. 2016 freightliner Cascadia. I will if it's i can I tried - Answered by a verified Technician ... Customer: have a 2012 freightliner cascadia had a eec 061 spn003361 code and eec 061 spn005246 engine shut down light came on can only go 5mph took to shop they cleaned and swap out the dosing ...2016 Freightliner cascadia with automatictransmission. Codes Spn 639 fmi 9 and 810/8. Truck will start but won't let me shift into gear. When truck was running, I had no cruise control and engine brak ... I have a 2019 freightliner M2 class that has ABS code spn 639 ...Mar 9, 2016 0 Hi I have a 2013 Cascadia. it's showing fault code eec 61 spn 3251 dpf pressure 02 . there was check engine n malfunction indicator lamp on but check enine went away.Eec freightliner code; Freightliner check engine code eec 61; Freightliner engine code eec 61; Eec 61 code on freightliner for sale; Eec Freightliner Code. It's driveable unless you run into the DEF issue I listed above. I have a 2015 Cascadia @ it pulled a eec 61 code. 10 Engine Starting, Operation, and Shutdown. Free ...DD15 with the fault code or SPN 3556 FMI 18, DOC outlet temp low ( low temp regen). I will take you through some of the steps to resolve this issue and get b...Run through these troubleshooting checks listed below in order to isolate this fault code. This is a loss of communication with your MCM. SPN 625/FMI 14 - GHG17 PT CAN: MCM System ID/MCM _ CO 1 Not Received or Stopped Arriving. SPN 625/FMI 14. Description MCM Message Not Received Or Has Stopped Arriving Monitored Parameter CAN Communication ...Second Opinion] I have a 2014 freightliner m2 106 cummins SL9 270 8.9 ISL with codes: SPN 3251.4, SPN 3610.4, SPN 3226.4, and SPN 5742.9. The check engine light is on and the DEF light by the DEF leve … read moreTrucking Jobs in 30 seconds. Every month 400 people find a job with the help of TruckersReport.Freightliner Codes; Trouble Code Fault Location Probable Cause; P1000 – P1099 (Fuel and air metering and auxiliary emission control) P1000: Ignition coil, 5 -primary circuit … ….

What caused the faulty code to come on. Technician: RichardH416. This is an aftertreatment code. Make sure your DEF tank is at least half full. Make sure the truck doesn't get shut off with low air pressure or the lines can't purge. Try cycling the key on and off 3 times and see if the code remains.Freightliner Cascadia 2016 has code for def pump short and spn 4374 fmi 9, fixed the short from ACM pin 20 to DEF pump pin 3, short code inactive, completed ADS test, ... Hi I have a 2013 freightliner cascadia with dd15 engine in it, getting a code EEC 061SPN 003242 Temp20, ...List of diagnostic codes for 2012 frieghtliner cascadia engine type dd15. 2011 freightliner Cascadia with DD15. Fault code EEC 61 comes on. What does this mewnijju.The low-beam headlights, taillights, brake lights, road lights, dome lights, clearance lights, turn signals, hazard lights, refrigerator, fuel heater, electric oil pan heater, and electric or diesel-fired engine-coolant preheaters can be operated in the off position (regardless of whether the key is inserted).Code 523006 fmi 5 2017 freightliner cascadia. Cascadia. Smell def in cabin - Answered by a verified Technician ... Hi, I have a 2016 Freightliner Cascadia, I drove 1500 miles since I last filled up my DEF tank, ... We have a Code EEC SPN3597 FAIL THE check engine light will go off and the WIL will stay on. The DEF is full ...SPN 4364/FMI 18. Description. This code sets when the Aftertreatment Control Module (ACM) detects that the Selective Catalyst Reduction (SCR) NOx Conversion efficiency is low. Monitored Parameter. SCR inlet NOx sensor and SCR outlet NOx sensor. Typical Enabling Conditions. Diesel Exhaust Fluid (DEF) Dosing Enabled, 1000 - 2100 rpm, 15 -100% load.Here are two easy-to-add Uber promotion codes that save you a combined $30 off future rides anywhere in the US. Update: Some offers mentioned below are no longer available. View th...Regen Temperature- Out Of Range Low Table 1. SPN 3556 /FMI 1 Description This code sets when the exhaust temperature does not increase above the modeled threshold when a regeneration is enabled. Monitored Parameter DOC outlet temperature sensor Typical Enabling Conditions Regeneration enabled, 1100 to 2050 rpm, 50% to 100% engine load. Eec code freightliner 2016, Should I Get a Computer Science Degree or Go to a Coding Bootcamp?... The best online coding bootcamps at colleges was created using Updated May 23, 2023 • 5 min read The technolog..., 006. Marker Interrupt Switch Fault. 7. 007. Multifunction Turn Signal Switch Disagreement-Both wiper high and wiper low inputs are on. 2. 008. Multifunction Turn Signal Switch Disagreement-Wiper on/off is off and wiper high or low input is on. 2., 2016 freightliner cascadia. 4 codes popped up while mil ligth yellow check engine and def light blinking. eec 61 3364 fail 2 eec 61 4364 fail 18 eec61 5246 fail 15 eec 61 5246 fail 16 Did a parked reg … read more, 2016 Freightliner 114SD VIN: 1FVHG3DV2GHHA2468 Fault code 520268 fmi 16, 157 fmi 16, 164 fmi 16, 677 fmi 2. Started troubleshooting for fault code 157 fmi 16. Step 1. ... I code EEC (3) Freigliner Cascadia 2016. If possible I …, SOURCE: 2014 freightliner cascadia, dd13 showing an active code mil light Diag, says ecu 01 , what can that be. the code dd13 for a detroit series 60 refers to coolant level sensor ---input voltage low. should be in the radiator top tank and energizers when the coolant level in the cooling system falls below a set point in the radiator., Second Opinion] 2016 Freightliner Cascadia dd15 Detroit engine. I have a fault code on. It is txld: 61 SPN: 3556 Aftertreatment 1 hydrocarbon Doser 1 FMI 18 (low-moderate severity) count 1 Can you hel … read more, It's showing very low coolent. 2016 Freightliner Cascadia.DD15 it also shows code SPN111 and FMI 1. Added coolent, - Answered by a verified Technician ... I have a new intermittent code for my 2016 Freightliner Cascadia DD15 - SPN-628 (FMI: 2) It says Engine #1 on the Fleetio app. ... Code showing EEC (1) ..., The code is EEC fault 1. 2013 freightliner cas dd13. Nothing. Smoke is on the right when I Accelerate - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... We have a Code EEC SPN3597 FAIL THE check engine light will go off and the WIL will stay on., About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ..., This is a general code related to the Aftertreatment System, which is vital for the truck’s emissions control. Clearing this code requires understanding its origins and addressing …, Freightliner cascadia with dd15 vin # 3AKJGLD55FSGK6058 giving me a engine light and a code EEC 61 SPN 3251 FAIL 21 Can - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... Freightliner cascadia 2016 fault code spn 520359 fmi 4 ambient ..., Technician: roybelding. ok, yes, the regen will run as long as there is no other active code. run the regen. 424.3 SPN 3719/FMI 16 - EPA07 - EPA10 - GHG14. Soot Level High. NOTE: Do not interrupt regeneration once it has been initiated. NOTE: When this code is detected, the operator has two minutes to execute the entry conditions, cycle clutch ..., i have code system 017 spn000639 j1939 network 02 and eec 061 spn003251 dpf pressure 00 on my 2014 freightliner cascadia evolution dd15 … read more BrentR718, 2016 freightliner cascadia. 4 codes popped up while mil ligth yellow check engine and def light blinking. eec 61 3364 fail 2 eec 61 4364 fail 18 eec61 5246 fail 15 eec 61 5246 fail 16 Did a parked reg … read more, 2012 freightliner cascadia engine code ECU 1. What does this mean. Ecu 1 fault means the engine EMC has a internal fault and needs to be replaced. Most of the time with this code It's not the ecm itself it's usually a wiring problem going to ECM. Their should be two fuses for ECM either next to ECM in plastic covers or by starter or in battery box., Eec 61 Code Freightliner. After you drive awhile, after 3 key cycles that light should go off. Yesterday got change my def filter at speedco, after 12 mile the check engine and the solid engine light came the the code eec61 diag 1 took it bake to speedco. ... Mc coloringall Sep 26, 2016 · i have a 2012 freightliner Cascadia that the code ..., If no fault comes up, then the problem has been solved. If you see the 520363 fault code along with the SPN 3223 FMI 7 code, then that means "Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed Open.". What that stands for is that the sensor has failed completely and you need to replace it., Coding Bootcamps vs. Computer Science Degree... The best online coding bootcamps offer focused coursework over a shorter time period. Updated June 2, 2023 thebestschools.org is an ..., Did VGT meet commanded position and did no fault codes set during test? No: Go to Step 9. Step 6 Inspect cold side of EGR cooler for soot build up. Decision A.Remove EGR cooler gas outlet hose from front of EGR cooler (see Engine Service manual). B.Inspect EGR cooler outlet for signs of carbon or soot build up inside the EGR cooler. Yes: Go to ..., Louis Vuitton handbags do not have serial numbers, but do have date codes stamped on interior tags or directly on the interior linings on post-1980 handbags, as of 2016. Use date c..., Freightliner Business Class M2 Fault Codes List - ABS System Troubleshooting Meritor WABCO Pneumatic Antilock Braking System (ABS) – Table of DTCs Left Front Wheel Sensor Troubleshooting (SID 001) MID SID FMI Problem Test Test Result Action 136 001 01 Incorrect sensor air gap 1. Adjust the sensor. Check the AC voltage, a. Yes; repair those fault codes first. b. No; Go to step 3. NOTICE: Do not attempt to operate engine with the DEF lines disconnected. DEF pump runs and circulates DEF through the system at a limited rate (default) to aid in system cooling. WARNING: PERSONAL INJURY, Code eec 61 freigtliner cascadia 2012 ... 2016. 1fixitman, Aug 18 ... l ok I have same issues each 061 spn004364 box con eff 18 I've been in 5 freightliner liners ..., Jan 13, 2021 ... Code 3223 FMI 7 Freightliner NoX sensor raw inlet NoX sensor #shorts #trucking #Freightliner · Comments34., Dyson coupons for 2023. This June save 20% off at PCWorld Coupon Codes. PCWorld’s coupon section is created with close supervision and involvement from the PCWorld deals team Popul..., 2016 Western Star 5700 with DD13 engine D12 Trans vin HG0400 Scott Trippel 3,902 posts since Dec 13, 2014 ... Ok, guys this is what I have found. Test the LIN wires from the steering wheel to the EEC, ok. Unplugged all 3 ... Western Star 5700 Fault code 2049-9 and 527-9 Oct 6, 2017 5:59 PM I have the same codes et same problem and I unplugged ..., 2016 freightliner cascadia. 4 codes popped up while mil ligth yellow check engine and def light blinking. eec 61 3364 fail 2 eec 61 4364 fail 18 eec61 5246 fail 15 eec 61 5246 fail 16 Did a parked reg …, Truck had code eec 61 diag 1 fault 1 spn 5488 fail 5 - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... Eec61 fault 5 spn5488. 2016 freightliner cascadia dd15. Eec61 fault 5 spn5488 JA: What's the make/model/year of your truck? Engine type?, Yes; clear codes and road test to verify complaint. If code does not set, release the vehicle. If code sets, Go to step 2. No; Go to step 2. Turn the ignition ON (key ON, engine OFF). Check and record fuel level in all fuel tanks. If fuel level is below ¼ tank (or 25%), add fuel and road test vehicle., Webapp Codecademy teaches you how to code using an interactive console, motivates you with badges, and walks you through lessons in a straightforward curriculum. Best of all, it's ..., I have engine light on with code spn 639 fail 7 on freightliner cascadia 2014. Freightliner cascadia 2014 dd15 - Answered by a verified Technician. ... EEC 61 543.5 spn fail 7 Freightliner Cascadia 2015 I turn my truck on this morning and then the truck re-engine light turn on to make that ., 3. Check for multiple fault codes. Are any of the following faults present: SPN 4331/FMI 15, SPN 3216/FMI 16, SPN 520372/FMI 14 or SPN 5841/FMI 14? a. Yes; diagnose the other fault code first. b. No; Go to step 4. 4. Using a refractometer from the DEF Test Kit W060589001900, measure the DEF percentage. Is DEF percentage between 31 and 34%? a ..., 85239 Answers. SOURCE: 2012 freightliner cascadia engine code ECU 1. What does this mean. Ecu 1 fault means the engine EMC has a internal fault and needs to be replaced. Most of the time with this code It's not the ecm itself it's usually a wiring problem going to ECM.