Where do i find wiring diagram for turn signal on 2009 flhtcu harley

SOURCE: turn signal wiring

http://images.google.com/imgres?imgurl=http://mysite.freeserve.com/hhog/diagrams/23_1975_FL_FLH.gif&imgrefurl=http://www.harleyhog.co.uk/wiringvarious.htm&h=2133&w=1310&sz=82&hl=en&start=4&um=1&usg=__7Mf2_b-KebTuaZcBpkMmz7bDKKU=&tbnid=4oYjK1wkFbSJPM:&tbnh=150&tbnw=92&prev=/images%3Fq%3D1978%2Bharley%2Bflh%2Bwiring%2Bdiagram%26um%3D1%26hl%3Den%26sa%3DX

Try the above link, good luck.

SOURCE: Wiring diagram for the Harley Davidson 2007 FXDB

If you are gonna work on your own Harley, shell out the $60.00 for an H-D manual. They have a basic wiring diagram inside.

SOURCE: need a wiring diagram f?r flhtcu -96

You should be able to order one from harley.

SOURCE: 1997 HD TLE Sidecar to 2008 FLHTCU wiring harness (lights)

Does the sidecar harness have a square 4 pin plug? If it does it more than likely connects to the auxillary plug under the seat.

SOURCE: picture wiring diagram for 2003 harley fatboy

May I suggest a trip to your local library. Cycle repair books should be in 646 stacks of reference.
Otherwise you can Google for 2003 Clymer Service manuals on the internet.
I think Clymer had electrical diagrams in their books. I doubt that any except the HD service book would have anything about the physical location of the harness, but the pictures in the other books would help you.