No tail lights working on honda 2008 CR-V

Fuse#23 in the under dash fuse box is for the tail lights, controls license plate lamps and side marker lamps as well.
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if you meant brake lamps it's fuse 12 in the under hood fuse block.

did you check the trailer /tow fuse under hood in truck? located lfet side rear near firewall top. should be fuse for towing / trailer.DW Mylin

I had this problem with my 2007 Honda CRV -- all the lights worked EXCEPT the tail/running lights and the license plate light. The other tail lights worked -- brake, reverse, indicators, and hazards. Front headlights also worked, but when the headlights went on the back tail lights did not (not to safe for driving at night!!)
The fuse was #15 in the interior fuse box (under the dash driver side) with the label "small exterior lights" ( also check fuse #19 labeled "small lights main"). The cause of my problem, I believe, is a bad or lose wire in my license plate light.

Thank you so much Twobrandsam. Was having the same problem and could not find it until I read your comment about "Small lights fuse." you saved me a lot of headache. Thanks for sharing your solution.

There is a small fuse box for the trailer, its there by the fuse box under the hood and next to the master cylinder, check that.

there's one under the hood another under the dash on the drivers side and possibly one under the dash on the pass. side also. check your owners manual if you have one it should tell you where they're at.

Did you install the converter, which allows you to use the separate turn signal bulbs? If not, then you did pop the fuse.

Do you have dash lights? If not chk. fuse. If you do have dash lights chk. bulbs. if bulbs ok, chk. wires and taillight plug. Does it have a trailer light plug? chk. that too. If all that chks. out ok than you will have to trace the wires from front to rear to find the problem. fuses should be labled on inside fuse cover, inside cab, and under hood same way.

Look under the dashboard, next to/above the park brake pedal, for the interior fuse box. It has a black plastic cover. Remove the TAIL fuse, and see if it is blown. This should get you fixed up. Hope this helps, and Thanks for choosing FixYa.

Check your lamp out senser,and if you have a trailer wire package, disconect it. if the problemn goes away do not hook up trailer wiring again. If lights do not work and you have looked at all fuses,under hood and in the passenger compartment with a test light have your lamp out sensor checked.