2005 Chevrolet Trailblazer Q&A
2005 Chevrolet Trailblazer Question: where are the engine cooling fan relays?
Look for Fan Relay #45 in the underhood relay box. Also there's Fan Fuse #20 which powers the relay. this is really an engine cooling fan relay but I can't find a wiring diagram for another fan relay. There's an A/C compressor clutch relay which is #44 in the same relay block which is powered by 10A A/C fuse #30. Check both of those relays and fuses. I recommend getting your car diagnosed by a Chevy specialist if you need more help. If you want to find a Chevy specialist, here's our directory link for you: https://repairpal.com/directory?address=52761&car_brand_names=Chevrolet - Superbob