SPN 5246 FMI 0 – SCR Inducement Final Level - Causes 5 MPH Derate. The dreaded fault code that causes the 5 MPH derate! DEF doser could need service, or some component of the DEF system (such as a heater hose) could be faulty. This fault is related to the "SCR Inducement" which is what regulates your truck to this derate. Scr system fault engine will derate in 60 minutes.fr. DEF Fluid – The tank with the Blue Cap holds DEF Fluid. The ACM and Engine Control Module (ECM) are in direct communication to make sure the system is operational. This has a level sensor and a quality sensor to make sure the concentrations are in allowable limits. EGR System Malfunction causing Nox Efficiency problems. Dash shows, SCR System Fault, Engine will Derate in <60 mins.. please help me.. Dealer says they cant take me in til Monday.
How long should a forced DPF regeneration last? What is Forced DPF Regen? ACM – Aftertreatment Control Module – This module controls the operation of the emission system. Could be a number of things... NOX sensors could be reading insufficient catalyst conversion efficiency - which could be as simple as replacing the air filter up to requiring the SCR to be replaced. Beware some trucks, even if disconnected, will not go over 5 MPH – it is programmed even if the speed sensor is disconnected, so this method may not work all the time. Stay safe, stay healthy & be blessed. Some Volvos will allow you to temporarily override the derate if you unplug the speed sensor on the transmission. DEF Pump Failed, not making pressure, SPN 4334, SPN 4339. Scr system fault engine will derate in 60 minutes early. Hello Everyone, I am stuck in Phoenix.. Check out our other blog posts. What does poor DEF quality Mean? 2011-2013 EPA10 Trucks. A derate means that the program inside the engine computer limits either the power or vehicle speed. We hope you find this blog post useful!
The ACM / ECM could also need updating to eliminate ghost issues. The OTR Reset Tool is specific to which model and engine you have. However, when it's a specific 5 MPH derate then you can be certain that the problem is related to the emissions, aka the aftertreatment system. Select which engine you have for your diagnostic package. Looking to learn more? What is face plugging? We do not endorse this method, but it's good to know in case of an emergency. DEF SCR Inducement Faults. Maybe try to find another repair shop is about all there is to suggest. Scr system fault engine will derate in 60 minutes inside. Failed DEF Doser valve, SPN 5394.
How to fix this 5 MPH derate? A failed component is usually what triggers this code.