What Is Code SPN 3719 FMI 31, FMI 0, FMI 16? (Freightliner) (2024)

Not all codes concern a real problem. That may be a good thing. Sometimes all you need is information so you know what you should do in the near future. The correct thing to do in this case is not to delay any possible investigation into these codes as conditions do exist.

When it comes to SPN 3719 FMI 31 all you are getting is an information-only code. The FMI 31 is telling you that a condition exists and you should look into it as soon as you have time. The rest of the codes indicate a soot problem.

To learn about this code, just continue to read our article. It has the information you need to know about so you know what to do when the following codes are set on your dash screen.

Code SPN 3719

What is The Fault Code SPN 3719?

SPN 3719 FMI 16

SPN 3719 FMI 0

Fault Code SPN 3719 FMI 15

What is The Fault Code SPN 3719?

What Is Code SPN 3719 FMI 31, FMI 0, FMI 16? (Freightliner) (1)

We have checked several SPN 3719 FMI codes and the problem that this code is warning you about is a soot build-up. The 3719 portion of the code only tells you of the general problem. You will need to have the FMI portion set as well to know how serious this code can be.

Some FMi codes are more serious than others and tell you the level is severe. Depending on the FMI portion, you may or may not experience a derate. In some cases, you will have to act very quickly.

Once you do the regeneration, you will have to clear all codes before you can get back on the road again. It is possible to see other codes set at the same time. You should deal with those first before doing your parked regen. Sometimes a NOx code will be set and may have a similar problem.

SPN 3719 FMI 31

What Is Code SPN 3719 FMI 31, FMI 0, FMI 16? (Freightliner) (2)

The SPN 3719 FMI 31 code tells you the following information- Dpf Zone 2 Condition: Diesel Particulate Filter 1 Soot Load Percent Condition Exists. The FMI part of the code is only 2 words- condition exists.

What this means is that when you see SPN 3719 you know that there will be a problem with soot and it is probably building up on you. The FMI 31 code is the one you want as it is just telling you that a problem is coming and you should do something now before the problem gets worse.

When you get the SPN 3719 FMI 31 warning, you should do a stationary regeneration to clear the code. There are no other steps involved in resolving this problem.

Fortunately, this is a silent code and triggers when the Diesel Particulate Filter Regeneration Lamp is Flashing in "Regen Zone 2.

SPN 3719 FMI 16

What Is Code SPN 3719 FMI 31, FMI 0, FMI 16? (Freightliner) (3)

This code will also be related to your soot problem. It says- Soot Level High: Diesel Particulate Filter 1 Soot Load Percent Data Valid But Above Normal Operating Range - Moderately Severe Level.

The instructions to handle this code are- “When this code is detected, the operator has two minutes to execute the entry conditions, cycle clutch switch (manual transmission), cycle parking brake, cycle neutral switch (automatic transmission), then initiate regeneration request.

If this procedure is not completed within this time limit, the engine will shut down and the regeneration procedure must be restarted.”

As you can see by the instructions, you only have 2 minutes to do this regen. Also, you should check to see if your CPC4 has the right configuration. If it does, go to the OEM instructions to finish the repair. If not, update the CPC4.

Then clear all codes so you can drive again.

SPN 3719 FMI 0

What Is Code SPN 3719 FMI 31, FMI 0, FMI 16? (Freightliner) (4)

FMI 0 seems to be the most severe portion of the code no matter which SPN number it is attached to. According to the official list of SPN codes, this code means- Soot Level Very High: Diesel Particulate Filter 1 Soot Load Percent Data Valid But Above Normal Operational Range - Most Severe Level

According to two different data sheets, you have two different routes you can take to clear this problem before anything major takes place. The first data sheet says:

When this code is detected, the operator has two minutes to initiate regeneration request. Perform a parked regeneration. Clear all codes following the completion of the parked regeneration.” (source)

The second data sheet says: “1. Connect DiagnosticLink™.

2. Check for proper configuration of the CPC4 against the server information. Does the CPC4 have the proper

configuration?

a. Yes; replace the CPC4. Refer to Original Equipment Manufacturer (OEM) literature.

b. No; reprogram the CPC4 with the correct the information as necessary. Go to step 3. to verify repair.

3. Clear fault codes. Turn ignition OFF and disconnect DiagnosticLink. Wait five minutes for all modules to power down.

Verify repair.” (source)

Fault Code SPN 3719 FMI 15

What Is Code SPN 3719 FMI 31, FMI 0, FMI 16? (Freightliner) (5)

This is probably the second most hoped-for code when the SPN 3719 number pops up. This code means- Dpf Zone 3 Condition: Diesel Particulate Filter 1 Soot Load Percent Data Valid But Above Normal Operating Range - Least Severe Level.

According to the Navistar MaxxForce manual, you are to do the following:

Do three Onboard Filter Cleanliness Tests (OBFCT) to clear SPN3719 FMI 15. Using EST, go to Tests > KOER AftertreatmentTests > Onboard Filter Cleanliness Test. After OBFCTs arecomplete, check DTC list to determine if SPN 3719 FMI 15 isstill active.

Is SPN 3719 FMI 15 still active? (source). Starting on page 29 you will get your diagnostic information for the SPN 3719 code.

Some Final Words

The good thing about this code is that you do not have to do any mechanical or electrical work. But you still have to do proper maintenance to clear the code and get rid of the soot.

When you see the FMI 31 portion of the code, try not to delay doing any of the required steps to clear the issue before it becomes a big problem. You do not want to reach the FMI 0 stage.

What Is Code SPN 3719 FMI 31, FMI 0, FMI 16? (Freightliner) (2024)

FAQs

What Is Code SPN 3719 FMI 31, FMI 0, FMI 16? (Freightliner)? ›

SPN 3719/FMI 31 - Silent Code that Logs when the Diesel Particulate Filter Regeneration Lamp is Flashing in "Regen Zone 2." NOTE: This code is informational only and used by service to help understand which dash lights illuminated during normal service. I have a 2018 FREIGHTLINER CASCADIA

FREIGHTLINER CASCADIA
The Freightliner Cascadia is a heavy-duty semi-trailer truck produced by Freightliner Trucks.
https://en.wikipedia.org › wiki › Freightliner_Cascadia
Sleeper With DD15 (Vin # ...

What is the code spn 3719 fmi 31? ›

Detroit Diesel DD13, DD15 fault codes for DPF, DOC, SCR, Catalyst replacement needed. SPN 3719 FMI 31 Silent Code That Logs When the Diesel Particulate Filter Regeneration Lamp is Flashing in ” Regen Zone 2″.

What is the code spn 3719 on a freightliner? ›

This fault code indicates that high soot level is detected and a parked regeneration is needed. Check as follows: NOTE: When this code is detected, the operator has two minutes to initiate regeneration request.

What is error code 3719 16? ›

This code is defined as a DPF soot load high. This happens when the DPF has collected its limit of soot. The only way to get rid of this code is for the regeneration system to complete a successful regen.

What is error code 3719? ›

Fault code 3719 is for high soot level. And regeneration would be required.

What is the code FMI 31? ›

For example, you can get an FMI 31 code for having an empty DEF tank, or it may even be a code that informs you that the truck is in derate. Often there will be another code that accompanies an FMI 31 code.

What are SPN and FMI codes? ›

SPN stands for Suspected Parameter Number which tells you the circuit where the fault occurred. For example, if you had a SPN 1791 code, it would point to a fault detected in the EGR Valve Control Circuit. FMI stands for Failure Mode Indicator which tells you the reason the fault code was set.

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.

How do I fix SPN 1231? ›

SPN 1231/FMI 9

Verification Turn the Ignition OFF, disconnect the USB link from the 9-pin connector. Wait Five Minutes, reconnect the USB link and DiagnosticLink. Turn the Ignition ON and recheck for the fault code.

How long does a parked regen take? ›

Re-Gen cycle can take from 20 to as long as 60 minutes, at which time: the switch light will go off, Engine RPMs will return to normal idle, and. the DPF indicator light will be off.

What is error code 3719 on Takeuchi? ›

SPN 3719/FMI 15 This diagnostic condition is a silent code that logs when the DPF Regeneration Lamp is flashing in regen Zone 3. NOTE: This code is informational only and used by service to help understand which dash lights illuminated during normal service. A stationary regen is required if the fault code is active.

What is error code E0004? ›

Error code E0004

This error indicates that the compiler cannot guarantee a matching pattern for one or more possible inputs to a match expression. Guaranteed matches are required in order to assign values to match expressions, or alternatively, determine the flow of execution.

What is error code F2028 on Rexroth drive? ›

F2028 – “Excessive Deviation”: Accel or Decel set to high or mechanical problem. F2174 – “Loss of Motor Encoder”: Clear position status, then set absolute measure (home), then cycle power. F6029 – “Positive Position Limit Exceeded”: The axis has traveled beyond programmed limits.

What is code spn 1569 fmi 31? ›

The 1569 fault code is simply an inducement fault code. It means that there is a derate active in the engine for a specific reason. There will be an associated fault code with this, which will be the sole reason why the derate is active. What is a derate?

What is error code 3719 on a wacker? ›

This fault code is an indication that Heiss at level is detected and a regeneration is needed.

What is error code s310? ›

You'll need to check that your TV box is connected correctly. Make sure the white cable coming out of your TV box is firmly connected. If your TV box is connected to your hub make sure the white wire going into your hub is also tightly connected. Your hub should also be in the upright position.

What happens if you don't park regen? ›

Do you actually need to do a parked DPF regen when the truck is asking for it? The short answer is, Yes! If you keep driving your truck without doing a parked DPF regen your truck will enter a derated mode. When this occurs your engine power and/or your speed will be limited.

What happens if regen takes too long? ›

If you can no longer start a regen then you will eventually get stuck in a derate which will then lead to an engine shut down.

How do I know when regen is complete? ›

We'll now wait 10-30 minutes for the regen cycle to complete. If this process takes longer than 30 minutes or the check engine light comes on, call the shop immediately for assistance. We'll know the procedure is complete when the DPR filter warning light turns off and the engine returns to idle speed.

What is the code spn 4795 fmi 31? ›

SPN 4795/FMI 31 - MY13

This diagnostic is typically Particulate Filter (DPF) Outlet Temperature Response - Too Fast. NOTE: This fault indicates the ACM2. 1 has detected a sudden temperature shift on the DPF outlet temperature sensor.

References

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