Spn 3226 Fmi 12 (2024)

FAQs

What does code spn 3226 mean? ›

The 3226 fault code is for the outlet nox sensor. This sensor does have the capabilities of putting the engine into derate. The engine relies on the outlet nox reading in order to make adjustments to the aft system.

An FMI 12 code will tell us that the module or a component that is monitored by this module has gone bad and needs replaced. Data Communication errors are usually going to come from issues in CAN communication.

My coach is at Cummins now to resolve this error code. After running a diagnosis Cummins confirmed that the Turbocharger Actuator #1 is bad and needs to be replaced. I have heard from multiple diesel coach owners that there is an inherent problem with these actuators.

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.

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.

A logged P0463 code means that a high voltage signal is detected from the fuel level sensor, resulting in inaccurate fuel gauge readings. A faulty fuel level sensor circuit or sending unit, damaged body computer, PCM issues, and a faulty smart fuse box are common reasons why this code is triggered.

Page 1. 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.

shorted to high means voltage is reading higher than normal which could be caused by a faulty sensor or a short in the harness from another power source.

Most variable-geometry turbochargers are now equipped with electronically controlled actuators, that use a signal from the ECM to move either vanes or a sliding sleeve in the turbocharger, which increases or decreases the exhaust gasses driving the turbine wheel which in turn increases or decreases the air flow from ...

Failure Mode Indication (FMI), as part of the J1939 standard used in heavy-duty vehicles, functions by closely monitoring system components. When a fault occurs, FMI generates a precise code that identifies the specific nature of the issue, much like an advanced version of a 'check engine' light.

What is SPN 3251 FMI 0 code? ›

SPN 3251/FMI 0 – GHG14

This diagnostic is typically Diesel Particulate Filter (DPF) Pressure Out of Range Very High. This fault code sets when the DPF outlet pressure is greater than 35 kPa (5 psi) for more than 10 seconds.

FMI 12 indicates that the sensor's signal is below the normal operating range or is shorted to ground. SA 11 refers to the engine control module (ECM) as the source address. If the sensor is disconnected, it is possible that the ECM will not receive any signal from the sensor, leading to the fault code being triggered.

Service Principal Name (SPN), used in the Kerberos protocol. Service provider name, stored on mobile phone subscriber identity module (SIM)

SPN 3226/FMI 20

Description. Selective Catalyst Reduction (SCR) Outlet NOx Sensor - Drift Low.

The Diesel Intake Air Flow Position Sensor (DIAFPS) is typically located on the throttle body attached 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).

Diagnostic trouble code (DTC) P069E stands for “Fuel Pump Control Module (FPCM) Requested MIL Illumination.” It indicates that the FPCM has identified an issue in the fuel system and is requesting the PCM turn on the check engine light.

SPN 3216/FMI 2

Description This fault code sets when difference between the expected NOx ppm and the actual NOx ppm is greater than 200 ppm. Monitored Parameter. Aftertreatment Inlet NOx Sensor. Typical Enabling Conditions. (Common Subset for all Engines)

A P0101 OBD-II trouble code is one of many diagnostic trouble codes (DTCs) that can be detected by an onboard diagnostic system within your vehicle. This particular code is set when the engine control module (ECM) detects an issue with the mass airflow (MAF) sensor within your vehicle.