Question

I got the code U0073 on my 2008 Cadillac CTS 3.6L, could a bad fuse cause this trouble?

Answer 1

U0073 Control module communication BUS off

Yes it can be , this type of code set when there is power at the module that is setting the code, it also depends on which module set the code.

Answer 2

U0073 CADILLAC Code - Control Module Communication Bus OFF
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