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Discussion Starter · #1 ·
2006 GMC Sierra 1500 Crew Cab Z71 46k miles

Check engine light is on, can't get the codes since the port isn't working.

I've done some searching and can't find anything so far.

What can I do to troubleshoot this port?
Does it have a fuse? If so which one?

HALP> :)
 
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