Concrete cowboy Posted July 6, 2023 Share Posted July 6, 2023 need a lil help 13 cxu 613 code spn 251 fmi 12.....can somebody help me on this code ...real time clock battery is what it says on google and dont know how to find it or check it .....it all started when i blew a fuse for my cb ...tried to find fuse for the red and black lugs ..ran wire and cant find fuse for that either ...started check all fuses in fuse box on top of dash ....seen alot of blown fuses and replaced them .....then it all happened ...check engine lite came on and spit this code out ....so i need help on both ....thank you for your time and knowledge on this issue Quote Link to comment https://www.bigmacktrucks.com/topic/73022-code-spn-251-fmi-2/ Share on other sites More sharing options...
Mackpro Posted July 7, 2023 Share Posted July 7, 2023 https://static.nhtsa.gov/odi/tsbs/2022/MC-10211372-0001.pdf I’ll attach a picture of fuse locations tomorrow Quote Link to comment https://www.bigmacktrucks.com/topic/73022-code-spn-251-fmi-2/#findComment-534331 Share on other sites More sharing options...
Mackpro Posted July 7, 2023 Share Posted July 7, 2023 Quote Link to comment https://www.bigmacktrucks.com/topic/73022-code-spn-251-fmi-2/#findComment-534343 Share on other sites More sharing options...
Mackpro Posted July 7, 2023 Share Posted July 7, 2023 Quote Link to comment https://www.bigmacktrucks.com/topic/73022-code-spn-251-fmi-2/#findComment-534344 Share on other sites More sharing options...
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