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hummbug
04-05-2008, 01:53 PM
The under hood fuse block (J) case. I found the red/black (12 V +) wire taped back to the wire loom and attached it to the post of fuse # 59. I can't find the blue wire (Trailer Brake) that needs to go to the post of fuse # 55. This info came out of the owners book. Thanks.

oilyocean
04-05-2008, 02:34 PM
not really sure what you are doing...but sounds as if you are trying to connect a trailer brake controller. If you buy a harness for this (10-15 dollars) then it will plug in directly and dont have to make wire connections..I did this on a 03 and only took a few mins (unless you have the offroad lights from dealer then they are plugged into the same spot)

hummbug
04-05-2008, 04:24 PM
Yes this is for the brake controller. I have this mounted on the dash. I had an 2003 H2 and it pluged into the fuse block under the dash. I now have an 2008 H2 that gets conected to blunt cut wires that are just hanging under the dashboard.

This I have all done. Even my 03 needed the proper fuse installed in the under hood fuse block for the brake controller to work. However on the 08's two fuses need to be installed in the under hood block and the proper wires attached to posts that are connected to thes fuses.

I found the red 12v + wire on the outside of the fuse block it was folde back and taped down to the outside of the wire loom that it come out of. I connected it to the post of fuse 59. The owners book tells me there is also a blue wire for the braks that needs to be connected to the other post for fuse 55. This is the wire I can't find. Can anyone tell me where to look for this wire and if I have them connected to the correct posts. thanks in advance for the help.

HUMTECH
04-05-2008, 04:43 PM
As far as i know, havent seen any 08's yet but 07's and earlier the j-case fuse is only for the charge circuit if you are charging batteries as you tow. I could be wrong and can look into it but if you have the factory plug and play harness it should plug right in. I will do a little digging to see if i can confirm or not

hummbug
04-06-2008, 03:35 PM
Well I took the trailer out and the brakes seem to work just fine. The blue trailer brake wire the owners book talkes about is nowhere to be found and for good reason (it's not needed).

Thanks