Code 5246 Fmi 0
First check the def supply and air lines.
Code 5246 fmi 0. Spn 5246 spn 15. Critical scr related fault codes have been active for an extended period of time and require immediate attention. Spn 5246 fmi 0. You are looking for any leaks kinks cracks or disconnected lines.
No matter which code you have the troubleshooting steps are all very similar. It seems that there is some problem with the scr did a research but cant figure it out. Fault code eec61 spin 5246 this just means the warning was ignored so the motor went to de rate. Cummins fault code 3712 or spn 5246 fmi 0 notification red stop engine light on information aftertreatment scr operator inducement data valid but above normal operating range most severe level.
Descriptionregulatory fault ignored derate on. Epa10 only if spn 5246fmi 0 15 or 16 are the only. The 3361fmi 7 code is more then likely your metering unit is stopped up and needs flushed. This diagnostic code is typically regulatory fault ignored derate on.
Spn 5246 fmi 0 i have this on a truck that came to the shop today he has derate 5mph did a regen on it it worked for 1 hour not to sure what to look for. Second opinion i have code spn 5246 fmi 0 on my volvo d13h 2011 256k miles. Regulatory fault ignored final action. This is one possibility on clearing codes snp 3361 snp 5246 snp 4364 on freightliner cascadia this clear codes on my truck httpsyoutubet1yuztairlw.
Failure mode indicators fmi fmi0 data valid but above normal operational range most severe level fmi1 data valid but below normal operational range most severe level. It says def tank low derate to 5 mph but my def tank is full. Vehicles equipped with option to display codes. Def gauge bar is full but amber light.
Epa10 only if spn 5246fmi 0 15 or 16 are the only faults present follow troubleshooting procedure for spn 3361fmi 7 def unit unable to clear restriction. I have a cummins isx its in derate mode its showing codes on my dash which are engine 0 fail 31 5246 1569i had the dpfdoc cleaned i changed the i map sensor also i also did a park regen on it but after i drove it for about 30 minutes after that the yellow engine light came back on and once i stopped shut it off then restarted it now the redyellow light is on and in debate mode could. Codes will not be displayed on the gauge cluster if the vehicle is equipped with the vid. The first two steps are fairly easy.
For 2010 models this code sets when the vehicle has been driven for 10 hours or 500 miles while a code is present for the def tank level def metering valve def pump nox sensors blocked def line def quality nox efficiency scr harness andor scr sensor. Spn 5246 spn 16. Troubleshooting the detroit diesel def codes basic def checks first.