If the harness is good you likely have a failed sensor.

Spn 2023 fmi 14 usually suggests a communication issue between the ecm and other modules.

Look for loose connections or.

Spn 523525 fmi 14 is active, got to step 4.

Is it hot or cold?

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International and isuzu trucks , international,.

You will need to have this connected to the international diamond logic diagnostic.

Large exhaust leaks, a turbo charger that’s not performing 100%, an egr valve that’s not completely closing or opening.

Medium and heavy trucks.

Get information about suspect parameter number (spn) and failure mode identifier (fmi) fault code list and read descriptions before engine troubleshooting diy process.

Please reference the following file(s):

This fault code actually is for a programmed smart switch that is not being recognized or detected.

The codes you get from the cluster really shouldn't be used for.

The code spn 2023 fmi 11 oc 1 sa 23 conn 1500 pin 7.

2023 fmi 14 byte7 107 byte8 5 is for the fuel level sender.

These repair instructions are intended to address the following fault(s):

Would need to read the engine codes, make sure oil is full and clean.

If enabled and the transmission is in gear, utm allows the vehicle to start moving after.

You have a storage tank and the draw tank.

The ultrashift plus transmission may be configured with the urge to move (utm) feature.

When it’s supposed to, the hydrocarbon fuel dozer is plugged.

I got few alerts.

Found 1 result (s) for your search.

The fault code spn 563 fmi 14 is a code that originates with the transmission.

Answered by andy in 22 mins 9 years ago.

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Suspect parameter number (spn) and failure mode indicator (fmi) full code list.

If spn 523525 fmi 14 is inactive, got to step 3.

The engine takes the fuel from the draw tank only and both tanks have sending units or fuel level sensors which connect.

Spn 520349 fmi 14 discussion in 'freightliner forum' started by alexd13, mar 28, 2023.

Did it die or did you shut it off.

That conn 1500 pin 7 is that the location where the short or loose.

Check out source address 23—that’s your instrument cluster.

Check the harness and fuel level sensor in the tank.