4774 SPN Fault Code

Name:

Aftertreatment 2 Diesel Oxidation Catalyst Intake Temperature Preliminary FMI

Description:

Used to identify the applicable J1939-73 FMI detected in the diesel oxidation catalyst intake temperature sensor by the manufacturer�s sensor control software in exhaust bank 2. In the case of multiple failures the most severe is communicated.A value of 31 is sent to indicate that no failure has been detected or this parameter is not supported. This parameter should be used with engines fueled by diesel fuel (not gaseous fuel like natural gas or propane). A separate parameter has been defined for gas fueled engines.

4774 spn fault code name is Aftertreatment 2 Diesel Oxidation Catalyst Intake Temperature Preliminary FMI. If you don't take the time to look into 4774 spn fault when it arises, it can add up quickly. One small issue like 4774 can cause a larger component to become damaged without taking the time to investigate. If you suspect your truck is suffering from one of these issues, look into replacing those small components to save money down the road.

Note: The name and description of 4774 code represents text descriptions for faults supported by another coding system and does not necessarily comply with SAE J1939. For a specific engine manufacturer's explanation for codes, please consult the engine's technical manual. See also other spn codes.

4774 SPN Fault Code

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