05 Denali XL Auxiliary Fuse Block

[Postman70]

Hello all. I’m not to this forum but belong to quite a few others for various makes. I’m here to see if you wonderful people can help me with my current problem. Have a coolant fan code and mechanic says the auxiliary Coolant fan fuse block is burned up or otherwise bad. My problem is that every truck I see in the boneyards don’t have this option And the dealer can’t seem to find it. One said it was part of the headlight harness. Does anyone have any info or part numbers they can share with me. I appreciate any help