Freightliner def line heater 5 location. Regular DEF quality checks and sensor cleaning help .

Freightliner def line heater 5 location 00 Pay in 4 interest-free installments of $32. Test voltage supply at the relay socket and verify proper relay operation. 2016 Cascadia DEF Line Heater Relay Location and Fault Code Fix 3425 model often faces DEF line heater relay confusion and ISX fault codes related to emissions system heating. NOTICE: To connect a DEF coolant line, push the line coupling onto the DEF port male connector, then pull back gently on the coupling to engage the holding clip in the locked position. Nov 10, 2024 · SPN 4356 code is part of the diagnostic trouble codes used in heavy-duty diesel engines. Aftertreatment 1 Diesel Exhaust Fluid Line Heater 3 Circuit - Voltage Below Normal KW T680 2019 DIYDime 2. In this video we're going to be looking at a problem with a DEF Tank Heater Valve (SPN 3363 FMI 5 & SPN 3363 FMI 3) but really, these issues apply to so much more. Verify the DEF heater lines from the header assembly to the dosing pump follow the correct schematic to prevent freezing. Use a multimeter to verify continuity and proper voltage supply. 2013 kenworth t680 Cummins isx15. This component is essential for heating and maintaining the proper temperature of the DEF fluid to ensure the emissions system functions effectively in Freightliner commercial trucks. They have a yellow high temp tape wrap. 2 SPN 5488/FMI 4 May 4, 2017 · Need guidance diagnosing DEF heater line #3 open circuit Discussion in ' Kenworth Forum ' started by tiddlytanker, Nov 21, 2020. This warning signals that the heater responsible for keeping DEF fluid at an optimal temperature may be malfunctioning. Regular DEF quality checks and sensor cleaning help Customer: I can't locate the DEF heater line #3 for my Freightliner DEF line heater. Jun 7, 2017 · ID: 5491 - Aftertreatment 1 Diesel Exhaust Fluid Line Heater Relay FM: 4 - Voltage below normal or shorted low Had RED Check engine light so didn't want to move rig (2015 Dynamax Force) Checked fuses, Wiring, called ScanGauge to get definition of codes and did allot of research. A small amount of white crystal or powder around a DEF fitting is normal. Seems extremely odd all 3. 44K subscribers Subscribe Sep 19, 2020 · Advanced Manufacturing Long before any Freightliner is assembled on the production line, our engineering team designs and builds digital mock-ups of every truck model. At the MFJB, battery power is directed to various components including the alternator, SAM Cab For code 4169, check the DEF dosing unit heater fuse and relay located in the engine fuse box. The DEF heater line 1 refers to the first heating element in the Diesel Exhaust Fluid system, preventing fluid freezing. All of this heating is necessary because DEF freezes at a relatively high temperature. If this is Feb 5, 2024 · 2015 Freightliner Cascadia Power Distribution The 2015 Freightliner Cascadia operates using the OBD 13/15 system. 7L engine. Check wiring harnesses for damage or corrosion. Nov 11, 2024 · SPN 4355 code refers to a specific issue within the diesel exhaust system, particularly related to the Aftertreatment 1 DEF Line Heater 2. Freightliner Cascadia DD13 DD15 DD16 DEF problem DEF pump not working SPN 4374 FMI 0 S1 E6 F. See full list on thecampingadvisor. SPN 5488 SPN 5 indicates a line heater circuit fault, often due to wiring issues or a faulty heater element. The heating elements are controlled by the engine ECM. The DEF Line Heaters are designed to prevent the DEF from freezing in cold temperatures. This code indicates a problem with the DEF Line Heater 4 circuit. 75, repair wire between pin 2 on the harness side of line heater 1 connector and pin 9 Subscribed 161 31K views 5 years ago Freightliner DEF line heater 1 , power supply 2 heating element failedmore EEC code SPN 5488 FMI 5 indicates a fault in the aftertreatment system, often linked to the Diesel Exhaust Fluid (DEF) dosing valve or sensor. Also when it throws this code fuse A2 Line Heat on the fuse box on the outside of the firewall blows. then codes… The new DEF line heater relay will be "Diode Suppressed". Place drain pans underneath the DEF pump to catch any draining fluids. Mechanic's Assistant: Are you attempting to fix your truck yourself? What steps have Customer: Eec61 fault 5 spn5488. 7 and Allison Trans. If the voltage is below 11. 75, repair the wire between pin 2 on the harness side of the line heater 3 connector and pin 15 of the ACM. 75, proceed to step 5. Have a crane carrier garbage truck that is fitted with an ISL cm2350a. The repair is going to be similar to the previous repair with one minor difference. It is a crucial part of the vehicle's emission control Customer: I have a 32581 diesel exhaust fluid line heater 1 circuit. DEF line heater fault + how to fix def line #diesel #dieselmechanic freightliner cascadia DD15 engine DEF heater line problem spn 4357 FMI 5 electronic failure Check eng light 5488. If the voltage is greater than 11. 5 ohms and lines 2 & 3 both show 14 ohms. The heater is controlled by the engine ECM. After replacing the line heater, check all electrical connections for corrosion or damage. 5488/4 DIESEL EXHAUST FLUID LINE HEATER 5 CIRCUIT FAILED LOW Leave a reply GHG17 Heavy Duty Troubleshooting Manual (DDC-SVC-MAN-0191) | 347 SPN 5488 (ACM) (GHG17) | 347. Mechanic's General Information EPA10 Freightliner vehicles with a medium duty Cummins engine (ISB/ISC) and 6-gallon DEF tank may have a problem with DEF freezing at the return fitting in extreme cold temperatures. Here your going to see where to look for def lines 4 and 5 and how to replace t Measure the voltage between pin 2 on the line heater 5 harness side connector and battery ground. DEF Line heater 1 and 2 open curcuit Mad Motor Repair 5. Inspect the DEF dosing valve for clogging or failure. Feb 14, 2019 · Discussion on troubleshooting and resolving heater relay issues in C2 school buses. 4 ohms is normal, so inspect wiring harnesses for shorts or grounding issues. DD13 engine DEF light blinking regen on spn 3361 5246 3510 4334 freightliner M2 Nov 8, 2024 · SPN 4354 code is a vital indicator of potential issues with your DEF Line Heater. It's for the aftertreatment diesel exhaust fluid line heater 1 circuit on a 2014 Volvo with a Cummins engine. If the voltage exceeds 11. My voltage across the heater line connector, with relay disconnected, is within spec at 4. Mechanic's Assistant: The Freightliner mechanic will know how to address your heater issue. load tested power and ground circuits to module and tested communication circuits between ECM and aftertreatment module. The new relay change is being made to improve circuit fault diagnostic capabilities. Heater line #5 is located underneath the cab, it runs from one side of the DEF tank to the other side where the DPF system is. Disconnect line heater 3. 5V, repair the wire between pin 2 on the harness side of the DEF line heater connector and pin 39 of the ACM2. Battery power in the Cascadia is protected by fuses located at standard and optional locations. A heater resistance of 1. Jul 12, 2017 · At the ACM the large bundle of wires comes off both the 21 pin (com/power) and 120 pin (sensor) connectors travels up the frame rail over to the top rear of the tranny, splits off the communication/power, splits off for the def pump/tank/line heaters, and sends still a large bundle of wires to the OneBox sensors and metering valve. 1 120-pin connector. H. Mechanic's Assistant: Are you working on your truck yourself? What steps have you taken so far? Customer: Yes. 5V, Go to step 5. This component plays a critical role in ensuring that the DEF fluid remains at an optimal temperature for effective operation. The aftertreatment diesel exhaust fluid line heater 2 is situated on the return line between the diesel exhaust fluid dosing unit and the diesel exhaust fluid tank. T. This failure mode is identified by the Cummins Engine fault code 3575, which eventually leads to derate fault code 3712, limiting the vehicle speed to 5 mph. Scr def heater The SPN 4357 code specifically refers to the Diesel Exhaust Fluid (DEF) Line Heater 4. It indicates an issue with the Aftertreatment 1 Diesel Exhaust Fluid Line Heater, specifically Heater 3. Connect the DEF pump electrical harness connector. communication was restored everything worked fine for a short period of time. A. Showing the location of scr line heater 4 and 5Also showing problem area for wires to rub throughPoly loom vibration rubbed holes into the wiringHope this he Aug 23, 2024 · The code indicates: SPN 4355 – Suspect Parameter Number referring to line heater 2 FMI 5 – Failure Mode Indicator meaning open circuit The DEF line heaters are electrical resistance elements that warm the DEF to prevent freezing and maintain optimal fluid characteristics for injection into the exhaust stream. Measure the voltage between pin 2 on the harness side of the line heater 3 connector and ground. Mechanic's Assistant: What’s the make, model, and year of your truck? Also, what type of engine does it have? Customer: It’s a 2016 Freightliner Cascadia with a DD15 engine. the voltage is less than 11. reflashed to take it out of derate. Line 3 is a brand new line put on last week so I feel safe saying it’s accurate. Mechanic's Assistant: What’s the make, model, and year of your truck? What type of engine does it have? Customer: It's a 2016 Freightliner M2 with a Cummins 6. EZWiring can also be ac-cessed from within PartsPro. com 2014 Freightliner M2 DEF Heater Lines Installation Issues M2 models often face DEF heater line leaks and improper routing causing dosing pump malfunctions. General Information Leaks in the the diesel exhaust fluid (DEF) system are usually attributed to three sources; normal seepage, im-proper connections, or damage. how to replace def heat line #2 on 2011 Freightliner Coronado DD15 engine#defline #freightlinerdd15 #owneroperator Feb 5, 2024 · 2016 Freightliner Cascadia Power Distribution The 2016 Freightliner Cascadia operates using the OBD 16 system. However there are some what look like diodes that allow the signal voltage DEF Heater Line Open Circuit Issue! ESN: 73896195 Active Fault Codes: 3258, 3714 Inactive Fault Codes: 5278 I have a code for heater line 1 open circuit. Order from BH Tubes for your Stainless Steel OEM replacements of coolant tubes, heater lines, exhaust systems, glider kits, truck parts, oil pans, including hard to find and obsolete. If the voltage is less than 11. 1K views 3 years ago Broken line heater 4 on cascadia truck with Dd15more J4-F1 Expansion Fuse 13, BAT J7-F12 Auxiliary Coolant Heater, BAT J4-B3 Auxilliary Cab Heater, BAT J5-D11 Expansion Fuse 40_Out1, BAT J5-D10 Expansion Fuse 40_Out2, BAT J5-E11 Instrument Cluster, BAT J5-E10 Central Gateway (CGW), BAT. Most usual is 5488 and it shows heater open. #diagnostic #enginediesel #l Aug 23, 2024 · Fault Code SPN 4354: Diesel Exhaust Fluid (DEF) Line Heater 1 Circuit Urgency Level: Medium If your vehicle is displaying fault code SPN 4354, it indicates an issue with the DEF Line Heater 1 circuit. Have you gotten a def line code. module was badly corroded so we replaced it with a new module from freightliner. A common issue is the connector at the ends of the line, where the wire may break, causing the circuit to open. The Freightliner mechanic is qualified to Aug 26, 2025 · The product is a DEF (Diesel Exhaust Fluid) heater line specifically designed for Freightliner vehicles, with the manufacturer part number 04-28919-000. General Information EPA10 Freightliner vehicles with a medium duty Cummins engine (ISB/ISC) and 6-gallon diesel exhaust fluid (DEF) tank may have a problem with DEF freezing at the return fitting in extreme cold temperatures. Turn the ignition ON (key ON, engine OFF). This is a common spot to check for bad wiring. 04-28650-000 Genuine Freightliner Def Diesel Exhaust Fluid Line Live Chat: 8:00am - 5:00pm EST Or call us at +1 (877) 795-0656 $129. The three DEF lines have a heater element that is integrated into the line. EZWiring EZWiringTM makes Freightliner, Sterling, Western Star, Thomas Built Buses, and Freightliner Custom Chassis Corporation products’ wiring drawings and floating pin lists available online for viewing and printing. NOTICE: To disconnect a DEF line, push the line coupling in towards the male connector to move the holding clip to the unlocked position, then compress the prongs of the holding clip and pull the line off of the male connector. Apr 26, 2023 · Cummins 400 pm Freightliner IXL Tiffin Phaeton throwing codes on 2 in-line heaters and the DEF tank heater. 05K subscribers Subscribe Cascadia EPA 2010 After Treatment System Detroit Diesel DD13 & DD15 DEF Tank: Heater Pump The DEF Heater 3 circuit controls the heated line from the tank to the doser, preventing fluid freezing. Clearing the code requires repairing or replacing faulty components and performing a system reset. Do you have any additional details that might be useful? Customer: The code it's displaying is SCR Heater line #3 open or shorted circuit. 54 J4/E4 J7/E3 J7/F4 DEF LINE Heater 3/Spare Relay 1, Terminal 30 J5/C3 DEF LINE Heater 3/Spare Relay 1, Terminal 87 DEF LINE Heater 3/Spare Relay 1, Terminal 85 J5/B4 J5/B3 DEF LINE Heater 3/Spare Relay 1, Terminal 86 Spare Relay 2, Terminal 30 J5/C4 J5/E3 Find many great new & used options and get the best deals for Genuine Freightliner CASCADIA Detroit Dd15 Def Line Htr5 at the best online prices at eBay! Free shipping for many products! Customer: I have a 2016 Freightliner M2 equipped with a Cummins engine, and I'm planning to derate it due to a code 3425 indicating an open circuit in DEF line heater 3. I have ran through all of the cummins troubleshooting steps and I've come to a wall in where to go. Specific Error Code Received: DEF Line Heater, Line 1 open circuit. The truck he is working on today is a 2012 Freightliner Cascadia. Sep 19, 2020 · Advanced Manufacturing Long before any Freightliner is assembled on the production line, our engineering team designs and builds digital mock-ups of every truck model. The DEF doser heater relay on a 2014 Freightliner M2 is typically located in the main fuse panel or relay box near the battery compartment. Had the scan done but of course it’s well above freezing so the Aftertreatment line heater codes repair. Mechanic's Assistant: Understood. If this is encountered, install a The code pertains to the DEF line number 5. I'm trying to identify which line is #3. While the vehicle can still be driven cautiously, this fault should be diagnosed and repaired promptly to avoid potential issues with the SCR system and NOx emissions compliance. Apr 17, 2023 · The other code that may appear with SPN 4357 FMI 5 is SPN 4356 FMI 5 and that code stands for - Scr Line Heater #3 Circuit Failed Open. Mar 6, 2019 · Yes what he is saying is true, when you shut down the engine you hear the def pump for about 3-5 minutes as it purges the def from the lines, and when you say harness that is the oem (freightliner)harness that plugs into the def line heaters, the line heaters consist of a small heating element at each end of line and it is kinda like a heat tape that wraps the whole length of the line as well Disconnect the batteries. Also, examine connectors for corrosion or damage. 25 with Truck came in derate with no communication to aftertreatment module. I. A 'current below normal or open circuit' code indicates wiring faults, damaged heating elements, or faulty connectors. The primary power distribution center for the vehicle is the Mega Fuse Junction Block (MFJB). Per the schematic I have traced my fuse (ok), Relay is ok, terminals at relay ok, jumped wiring and got my supplied 12V voltage at all 3 wires at Heater line connectors. Inspect wiring harness connections to the DEF doser unit. The new relays are easily distinguishable by color. Possible causes for this fault include: When I test the line heaters for resistance individually line 1 shows 4. Bypassing the system by simulating higher ambient Freightliner 6 Gallon HDEP Supply DEF Line P/N: 04-30588-000 Supersession P/Ns: A04-32369-000, 04-31884-000 Tube Length - 22. Mechanic's Assistant: Is there anything else you would like the Truck The aftertreatment diesel exhaust fluid controller identifies that the line heater circuit is either open or shorted to ground. Verify the DEF lines and connection fittings are clean; connect the DEF suction line (1) and pressure line (2). The DEF lines and the wire harnesses to them are supplied by the OEM. This change implements two (2) new diode suppressed relay part numbers based on Blue Bird bus model application. After long discussion with Freightliner. Cummins isx15 code 4340 I changed the def line heater and code is still popping up. Inspect the heated line continuity at operating temperature, check fuses and relays, and verify connector integrity. Ex-cessive crystal buildup (caused by the evaporation of DEF when exposed to the air) and/or dampness is an in-dication of a leak. Mechanic's Assistant: What's the make, model, and year of your truck? What type of engine does it have? Customer: The code is 3258. 2019 International LT with an A26 engine. Clear the fault codes with a diagnostic tool and monitor if the code returns. It runs underneathe the twin frame and crosses over via the cross Freightliner Cascadia DD15 DEF Heater Line 1 Code Explained Cascadia models often face DEF heater line failures and sensor malfunctions causing emission system errors. 25" Plug Type - 2W Male Material - Nylon See Photos For More Details Trying to locate the DEF Supply Module Relay for the heater on a 2015 Freightliner M2 106 with ISB6. If the DEF heater isn’t activating, check this relay for continuity and signs of corrosion or damage. 61" Fitting Angles - 90 degrees End 1 Fitting Thread Size - 5/16" End 2 Fitting Thread Size - 1/4" Fitting Size - . I’m having an issue with the DEF Heater Lines all 3 of them (faults see pic). Subscribed 75 8. vvjkq ergrj jqyi ahpb kofbz zitfp vywrfy ikfip duwuf nloo led azqgmx iupf vwykrrt ixun