Fuse location or fuse number on 2006 GMC Sierra 2500 HD

I just replaced the O2 sensor behind the cat on the passenger side. I was told to check the fuse as well. The truck is a 2006 GMC Sierra 2500 HD. I have no idea what fuse needs to be checked. I can't find it in the manual either.

by in Muskegon, MI on April 27, 2011
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1 answer
ANSWER by , April 27, 2011
underhood fuse box 02a and 02b 15a