Spn 520349 (2024)

1. SPN 520349 FMI 14 | TruckersReport.com Trucking Forum

28 mrt 2023 · Usual cause is filters full of ash. Time for (2) new DPF"s. Make sure you remove soot sensor and clean with mineral spirits.
Hi Everyone, 2017 DD15 with 710k miles and got this code. Wondering if anyone has any experience with this. Thank you

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2. [PDF] Soot in tail pipe - nhtsa

Dave Ricks 5 posts since Sep 24, 2015. Soot in tail pipe Aug 31, 2020 3:16 PM. I have Code 520349 FMI 14 DPF Filtration Efficiency Low. I have also got soot ...

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3. Detroit Diesel DD13, DD15 fault codes for DPF, DOC, SCR, Catalyst ...

Silent code that logs when the diesel particulate filter regeneration lamp is flashing in ” Regen Zone 2′′.
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SPN 3056 FMI 2 Selective Catalyst Reduction Inlet NOx Sensor – Error SPN 3057 FMI 2 Selective Catalyst Reduction Outlet NOx Sensor – Error SPN 3216 FMI 3 Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed High SPN 3216 FMI 4 Selective Catalyst Reduction Inlet NOX Sensor Circuit Failed Low SPN 3216 FMI 10 Selective Catalyst Reduction Inlet NOx sensor – Signal Erratic SPN 3216 FMI 13 Selective Catalyst Reduction Inlet NOx Sensor Signal Not Available SPN 3216 FMI 16 Selective Catalyst Reduction Inlet NOx Sensor – Drift High SPN 3216 FMI 18 Selective Catalyst Reduction Inlet NOx Sensor – Drift Low SPN 3216 FMI 21 Selective Catalyst Reduction (SCRA) Inlet NOx Sensor – Drift (Low Box) SPN 3217 FMI 3 Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed High SPN 3217 FMI 5 Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed Open 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 SPN 3227 FMI 3 Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed High SPN 3227 FMI 5 Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Open SPN 3238 FMI 2 Selective Catalyst Reduction Outlet NOx Sensor Failure to Activate SPN 3242 FMI 3 Diesel Oxidation Catalyst Inlet Temperature Sensor Circuit Failed High SPN 3242 FMI 4 Diesel Oxidation Catalyst Inlet Temperature Sensor Failed Low SPN 3242 FMI 7 Diesel Oxidation Catalyst Inlet Temperature – Signal Not...

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4. [PDF] ADEL SYSTEM J1939 Table CB12245AJ

Force boost charge (SPN 520346). Return to bulk delay (SPN 520348). 65310. Lead/AGM/NiCd (SPN 520349). 65311. 65312. Device. 65313. Factory settings (SPN 520358).

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5. SPN: 520329 FMI: 31 DETROIT DD15 GHG17 (2017 & Newer)

10 jul 2023 · PID: N/A SPN: 520349. FMI: 14. Description: DPF Filtration Efficiency Low Troubleshooting: DESCRIPTION: Soot sensor detects elevated soot ...
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Description: DEF Flow Quantity Below NormalTroubleshooting:DESCRIPTION:Diesel Exhaust Fluid (DEF) pump speed low.MONITORED PARAMETER:DEF pump speed.TYPICAL

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6. [PDF] DEUTZ DTC-Codes EMR5

SPN. FMI. Fehlerbescheibung. Fault description. Date: 06.12.2022. Overview of all ... 520349. 11. Abgasnachbehandlung - Sammelfehler auf Main ECU ausgelöst.

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7. Parked Regen DD16 question | TruckersReport.com Trucking Forum

12 jan 2024 · SPN 520349 this one has been on for a while, my mechanic put the laptop on it and said exhaust pressure was reading correctly and didn't ...
Wussup everyone, I’ve searched through past post, but couldn’t find an exact breakdown or answer to my question. So I’ve never had my truck ask for a...

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8. [PDF] JPRO DIAGNOSTIC REPORT - Manheim

12 jun 2023 · Failure to Activate. SPN 3223. 7. 1. Permanent Aftertreatment. Control Module. Diesel Particulate Filter Filtration Efficiency Low. SPN 520349.

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FAQs

What is code 520349 on a freightliner? ›

Hello, the code you provide is the following:DPF Filtration efficiency low. If you run it for another week, you will most likely not regen and your filter will plug up causing you to derate.

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What does it mean when the DPF filter efficiency is too low? ›

It indicates that the DPF is not functioning optimally, compromising its ability to effectively filter out soot emissions. This can be caused by factors such as DPF failure, exhaust system leaks, or faulty exhaust back pressure sensors.

What is the code SPN 520355 FMI 14? ›

SPN 520355/FMI 14

Check as follows: NOTICE: This fault code indicates the wrong outlet NOx sensor was installed and it does not have the capability to run self-diagnosis.

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What is a diesel intake air flow position sensor? ›

The Diesel Intake Air Flow Position Sensor (DIAFPS) is typically located on the throttle body, which is mounted to the intake manifold or in a tube within the intake air stream. This sensor converts the incoming airflow volume into an electrical signal for the Powertrain Control Module (PCM).

How do I know which NOx sensor is bad? ›

Check the voltage: The NOx sensor works at a specific voltage, if it does not receive the correct voltage, it may not work properly. You can use a multimeter to check the voltage and make sure it is within the manufacturer's specifications.

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What does SPN mean on a truck? ›

SPN is short for suspect parameter number. It identifies which electrical circuit, part or component of your truck isn't working properly. FMI stands for failure mode identifier—this part of the fault code tells you what type of problem your truck has.

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What does SPN mean on engine? ›

SPN stands for Suspect Parameter Number. It's a diagnostic trouble code that provides detailed information about specific faults detected by the vehicle's ECU, making it easier to identify and address issues within the vehicle's electronic systems.

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What is Freightliner code 521049 FMI 31? ›

SPN 521049/FMI 31

Description This Code Sets When There is a Code Present for the Diesel Exhaust Fluid (DEF) Tank Level, DEF Dosing Unit, DEF Pump, NOx Sensors, Blocked DEF Line, DEF Quality, NOx Efficiency, Selective Catalyst Reduction (SCR) Harness and/or SCR Sensor. Check as follows: 1. Connect DiagnosticLink ®. 2.

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What is exhaust aftertreatment fuel injector a control circuit low? ›

' Exhaust aftertreatment fuel injector "A" control circuit low' in simple terms is also known as the OBD-II code powertrain control module (PCM) failure. It can be seen that the diesel exhaust fluid (DEF) is employed to help while converting the remaining exhaust particles to harmless gases.

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What is a Pndb module? ›

Powernet Distribution Box (PNDB) Replacement

Park the vehicle on a level surface, shut down the engine and set the parking brake. Chock the tires. NOTE: The powernet distribution box (PNDB) is located on the cab frontwall, above the main ground junction block.

What is Freightliner code 3599? ›

SPN 3599/FMI 4

Description This Code Sets When the Aftertreatment Control Module (ACM) Detects a Short to Ground on Pins 9, 15, or 39.

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