2009 fxdf wiring diagram

Hi, Anonymous if your headlight is not working, intermittent, only one beam works, keeps burning out, blinking, dim or surges from bright to dim to bright the first thing you need to check is the headlight bulb for damaged filaments then check your light circuit fuse, then check your headlight bulb socket ground wire for a clean tight connection, that being said the usual suspects are:
1. Faulty ground or power supply wire to the headlight bulb socket.
2. Worn down solder contacts or loose fit of the bulb base in the socket due to vibration.
3. Worn, chafed, or broken wires in the light circuit.
4. Corroded, broken, or loose pins/sockets in wire connectors.
5. Faulty hi/low beam switch.
6. Faulty ignition switch.
7. Fuse is good but no continuity on both sides.
8. Faulty headlight relay.
9. Faulty wiring between battery positive and headlight bulb socket.
10. Weak charging alternator/generator/lighting coil
11. Faulty voltage regulator/rectifier ground or overcharging.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.twtex.com/forums/threads/2009-fat-bob-fxdf-electrical-issue.94756/
http://www.mediafire.com/file/y8au34oc778d7oc/2009_Harley_Dyna_Service_Manual.pdf/file
https://partsfinder.onlinemicrofiche.com/ronnies/showmodel.asp?make=hdmc
https://ownersmanuals2.com/harley-davidson/fat-bob-2009-owners-manual-66578
https://www.6ya.com/

Honestly, there simply not much difficulty to the way headlights are wired on any vehicle. Standard headlights receive positive 12v from the headlight switch directly (or through a relay, if you have automatic headlights), and the switch receives power through the fuse block from the battery. When you turn the headlight switch on, you should get 12v at the input connector to your headlights. If the headlight connector is not receiving +12v at the connector when you turn the headlight switch on, check the fuse, the switch, and the relay. If the headlight assembly is receiving +12v at the connector, check the bulb. If the bulb tests good with an ohmmeter, check for a broken ground wire. That is simply all there is.

Follow this link to access the diagram: http://dave.mckinsey.organdiagram.portplaisancecalvi.fr/diagram/2009-kenworth-w900-headlight-wiring-diagram

get bike scanned and havum run a data stream to point issue--or getta clymer manual-it troublshoots completely