2009 Accord Tourer, tailgate not opening from key fob or pushbutton in the car.
Also, right power window not working.
I've read somewehere right power window shares the fuse with the tailgate ECU, is that true?
i looked at the passenger side fusebox, all the fuses seemed to be ok, also in the main fusebox under the hood.
Also tried the tailgate open/battery disconnect trick, didn't help.

 

welcome to the forum. the fuse box for the tail gate under the hood may be just back of the main fuse box. it holds 2 or 3 fuses. small plastic box. check to see if you have a valet switch should be on. i dont have a wire diagram so unable to answer the power window/ecu question. i have been told that the trunk switch and the trunk light are tied in together.

 

Where is that fuse box located?

 

thank you for the picture, your vehicle does not have that small box. sorry viewed different accord.

 

whilst I may not be able to provide a full answer, I’ll tell you how I fixed this problem on my 2003 accord. Both fuses in the “small box” seemed fine, and taking them out and putting back in didn’t do a thing. The guy before mentioned the tail lift circuit being somehow connected to the side windows… So I located the relevant fuses in the box under the steering wheel, took those out (together with some other random fuses, until I got bored, all looked fine BTW), put them back in, and voila! Warning light disappeared, and the tail gate works fine, the handle, the key, and the button on the gate. Well “voila” after dropping one of the buggers and taking a bunch of trim off to find it with a torch between my teeth, but voila nevertheless. One of those fuses must have come loose or got some oxidation on the contact points, or it was all just a random fluke. One important lesson regardless - always try all the simple things you can think of or google, no matter how pointless they seem, before spending big. Hope this helps someone. Cheers guys, and drive those hondas till they disintegrate in 100 years.

 

follow up: my tailgate stopped working again. This time I checked the fuses one by one, and I think it’s no 21 - a 10 amp fuse in the bottom row that resets the cpu. So no need to disconnect the battery and mess around with the clock, radio stations etc. Resetting didn’t work this time however (the warning light disappears, but comes on again as soon as you try to open the boot, and the lid doesn’t open), so I resulted to taking off the trim off the boot lid, and going through the wires cm by cm - which also involved unwrapping all the electric tape off them. Pain in the effin ***, but less a pain than paying Honda dealer for “replacing the faulty cpu”. I found a broken wire in the bunch enclosed in the plastic cover of the left hinge. As it turned out all I had to do was take the cover off that hinge, bu obviously I didn’t know, where the broken wire will be, if anywhere. So all the trim came off of the boot lid. If you DO have to take off the trim, I think the best order is:
1. The plastic panel above the window of the lid
2. Two plastic panels just on the sides and around the rounded corners of the window,
3. The large cloth panel off the bottom of the lid, to take this off you also need to undo a torx bolt covered with a cap in the black plastic handle where the “close” button is on the bottom of the lid.
I just used my fingers and a plastic lever (and a torx key obviously). You may be able to take the cloth panel off without taking off the plastic panels, but you’ll need to remove at least the one covering the wires on the left to inspect them.
DO try the bunch of the wires in the hinge first though.
good luck!

 

purslee thank you for the follow up. much appreciated.