Spn 1569 relates engine protection torque derate -condition exists.
critical fault codes related to engine operation are active
code 1 means urgent attention
A sort of limp mode setting that requires immediate attention by a cummins service center to prevent further damage to the engine
go google and type in--- cummins engines fault codes (or cummins engine fault code 1569) and there are pages of pdf downloads that list all the codes and what they stand for
SOURCE: Cascadia 2010 what does fail 1 engine 1 263.1 fail
I assume you're seeing this in your odometer display?
MBE 900??? There are hundreds of codes I don't know anyone that has them memorized. The only way to properly diagnose electronic engines is to have a shop plug into to it with the engine makers diagnostic software.
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