Spn 5246 Fmi 15 (2024)

FAQs

What is the diagnostic code for SPN 5246 FMI 15? ›

The code is for the derate. A completed regen is the solution for this code. this code sets when the vehicle has been driven for 30 miles while a code is present for the DEF tank level, DEF metering valve, DEF pump, NOx sensors, Blocked DEF line, DEF quality, NOx efficiency, SCR harness and/or SCR sensor.

This code is a Level 3 inducement associated with an emission activated fault. The Emissions System Malfunction lamp is on, the Action lamp is flashing, and the warning horn may sound. The engine is derated.

This code is just a regulatory fault indicating there is an aftertreatment fault that has been not been repaired and indicating the truck has been derated. There should be another aftertreatment fault present that will actually tell you what the issue is.

This is just an informational fault code that you need to replace or clean your DPF filter. The aftertreatment diesel particulate filter (DPF) is located in the exhaust system, and it's installed by the original equipment manufacturer (OEM).

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.

The 5246 fault is just an inducement fault. This means that derates are active presently. Now on your nox readings, How far into the regen was this noted?

You won't damage anything if you continue to operate the engine, but within a couple of hours you'll probably be derated to 5 mph. I would recommend that you get to a shop that can I pull the fault codes and make the repairs for you. If you have any follow-up questions or need any further assistance just let me know.

The 5246 is an inducement fault. This is just an indicating fault that states that a derate is present. Just like the 4094 fault.

Failure Mode Identifier (FMI) Codes on J1939 data link. The FMI is used along with the SPN to provide specific information that relates to a diagnostic trouble code (DTC). The FMI may indicate that a problem with an electronic circuit or an electronic component has been detected.

The average cost of cleaning, and regeneration of diesel particulate filter is £300, with prices ranging from £160 to £500. Hence, the exact price of a DPF cleaning job depends largely on your car, the extent of work needed and the parts your car's manufacturer recommends.

How to clean a DPF filter? ›

The easiest and cheapest method of DPF filter cleaning is by driving the vehicle for a long-distance at high revs per minute. Doing this increases the heat of the exhaust and burns the soot blocking the DPF filter. It's best to drive on a motorway or A road where you can keep the vehicle at a consistent speed.

My soot mass mass was 8.15g and my ash mass was 23.15g. Normally the DPF will regenerate by itself in a range of about 24-28g of soot. On normal driving this soot mass will oscillate between 1-2g and 25-30g. Between these values your DPF will work perfect.

The purpose of SCR inducement codes are to alert the operator that the emissions system requires service or repair. Inducements can be engine derates, vehicle speed limits, system lockouts, or any other action intended to prompt the operator in performing repair or maintenance on the emissions control system.

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.