Spn 3490 Fmi 7 (2024)

FAQs

What is diagnostic code spn 3490 fmi 7? ›

The spn 3490 fmi 7 is for mechanical system not responding with the ahi module. If the ahi module is not dosing correctly then the until will not regen correctly and will start going into inducement.

This error code defines a control unit failure and should be used to enter the maintenance package if you have multiple drive failures.

The aftertreatment fuel injector is installed in the exhaust system in the turbocharger adapter pipe. The aftertreatment fuel pressure sensor and aftertreatment fuel shutoff valve are installed in the shutoff valve manifold. The aftertreatment purge air actuator is located above the shutoff valve manifold.

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.

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.

Misconfigured Boot Order

One common cause of an invalid system disk error is an incorrect boot order in the computer's BIOS settings.

a number that appears on a computer screen to show that you have made a particular mistake or that something has gone wrong in a program: Error code 7 keeps coming up on my monitor.

Code P0340 indicates there is a problem with the electrical wiring of the circuit attached to the camshaft position sensor. This issue can result in the display of a multitude of other codes that relate directly to your vehicle's camshaft. In addition, your powertrain control module (PCM) could also be damaged.

The purge valve is typically located between the fuel tank and the intake manifold and is connected to the EVAP system's hoses and tubing. It is controlled by the engine's powertrain control module (PCM) and typically opens at a specific temperature and RPM.

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.

What does FMI mean Cummins? ›

FAILURE MODE IDENTIFIERS (FMI) Now that we have defined MID (The component) and PID (types of data), we can talk about Failure Mode Identifiers (FMI). Every diagnostic trouble code (DTC) that you find will have an FMI.

NOTE: If fault code SPN 1663/FMI 7 is inactive, it may indicate that the vehicle moved during optimized idle operation or that noise was detected on the Vehicle Speed Sensor (VSS).

FMI 7 – Mechanical System Not Responding: Rail D Position Sensor indicated no movement in the Aft direction during a rail calibration.