Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
hi there, I am Cam. Can I get your first name? Can you also tell me what grounds you checked, specific by location if you can .
I think we are going to find a bad or weak connection at the rear fuse block. Looking at the codes, I see only one shared point of contact for these codes, and thats connections in the rear fuse block. No grounds are shared, so power at that fuse block only. Check over the connections into the fuse block, even put some dielectric grease on them and see what that does.
Ok, sounds good. Let me know what you find.