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Where would I find the A/C relay on a 2003 Chevy Trailblazer

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The easiest way to find this out is to call your local dealer.

Posted on Nov 26, 2008


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Relay switch location on a 1997 chevy trailblazer

if its the 4 wheel drive relay its in the upper center of firewall. there is vacuum hoses connected to it

If you need further help, I’m available over the phone at

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I have a 2007 Chevy Trailblazer LS. The headlight don't come on, only the high beams. What causes this and how can I fix it?

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I have a 2003 Chevy trailblazer. The fan keeps running even when the ignition os off. The fan is draining the battery . What is th eproblem?

Your problem is most likely the fan relay. It is normally under the hood in the fuse box. Open the fuse box locate the fan relay (most are labeled ) If labeled tap on that relay and the fan should shut off if it does the relay needs to be replaced. If its not labeled tap on the relays one at a time till it shuts off. The one you tap that shuts it off is bad pull it out like a fuse and replace it. 4 thumbs up is appreciated if this helps.

Dec 23, 2010 | 2003 Chevrolet TrailBlazer

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I have a 2003 chevy trailblazer and the low beams stopped working

Check the relay in the relay/fuse box under the hood. There should be a diagram either on top of the cover or under the cover to tell which relay it is just like your internal fuse box.

Mar 29, 2010 | 2004 Chevrolet TrailBlazer

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Oct 06, 2009 | 2003 Chevrolet TrailBlazer

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My A/C blower won't turn off and sometimes it won't blow at all.

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Sep 30, 2009 | 2003 Chevrolet TrailBlazer

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Apr 14, 2009 | 2003 Chevrolet Trailblazer Ext

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