Code SPN 5246 FMI 0 Derate

Question

I've got a problem with my ISC 380 Cummins. It has a check engine code SPN 4363 FMI 3 which is "Open or shorted SCR temp sensor" and when I pulled into the RV park it set a SPN 5246 FMI 0 stop engine code " Derate to 5 MPH". There is a Freightliner dealer within 5 miles but they will not send anyone over to clear the Derate code so I can drive it to their shop for repair. I have a Nexus code reader but it will not clear the Derate code.

Does anyone know of a method to clear this code so I can drive it to the dealer.

burbman · Answer

Have it towed

rlw999 · Answer

If you clear the code (and the derate) without fixing the SCR temperature sensor, don't you run the risk of damaging the exhaust system, turning a sensor replacement into an expensive SCR replacement?

Any answer other than "tow" seems like it could cost you a lot more than the 5 mile tow. (which could be "free" if you belong to a roadside service club)

ranger_smith · Answer

Can you purchase the sensor and install it yourself at the RV park you are at. Mobile Freightliner tech . . . They send em out for truck repairs.

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Code SPN 5246 FMI 0 Derate

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