Question about 2003 Ducati 999

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Headlights wont come on

Park light comes on but headlights wont. bolth bulbs work on the passing switch fuse is good any suggestions?

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Head light sometime got,sometime gone...i change the head light delay really, but still same problem come out!!! what happen of this bike??

Posted on Apr 10, 2012

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Check the head light relay it must be rusted at the connection. if not replace it wit a new one.

Posted on Feb 17, 2009

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Parking light ok no highbeam but pass light works


Hi, Anonymous if your headlight is not working, keeps burning out or is dim the first thing you need to check is the headlight bulb for damaged filaments then check your light circuit fuse, that being said the usual suspects are:
1. Faulty ground or power supply wire to headlight bulb socket.
2. Worn, chaffed, or broken wires in the light circuit.
3. Corroded, broken, or loose pins/sockets in wire connectors.
4. Faulty hi/lo beam switch.
5. Faulty ignition switch.
6. Fuse is good but no continuity on both sides.
7. Faulty wiring between battery positive and headlight bulb socket.
8. Weak charging alternator/generator.
9. Faulty voltage regulator/rectifier, overcharging.
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Hi, Anonymous if your headlight is not working, only one beam works, keeps burning out, blinking, or is dim the first thing you need to check is the headlight bulb for damaged filaments then check your light circuit fuse, then check your head light bulb socket ground wire for a clean tight connection, that being said the usual suspects are:
1. Faulty ground or power supply wire to headlight bulb socket.
2. Worn down solder contacts or loose fit of the bulb base in the socket due to vibration.
3. Worn, chaffed, or broken wires in the light circuit.
4. Corroded, broken, or loose pins/sockets in wire connectors.
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7. Fuse is good but no continuity on both sides.
8. Faulty wiring between battery positive and headlight bulb socket.
9. Weak charging alternator/generator.
10. Faulty voltage regulator/rectifier ground or overcharging.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Headlights wont come on when i turn the switch on


Hi, Tom if your headlight is not working, keeps burning out, blinking, or is dim the first thing you need to check is the headlight bulb for damaged filaments then check your light circuit fuse, then check your head light bulb socket ground wire for a clean tight connection, that being said the usual suspects are:
1. Faulty ground or power supply wire to headlight bulb socket.
2. Worn down solder contacts or loose fit of the bulb base in the socket due to vibration.
3. Worn, chaffed, or broken wires in the light circuit.
4. Corroded, broken, or loose pins/sockets in wire connectors.
5. Faulty hi/lo beam switch.
6. Faulty ignition switch.
7. Fuse is good but no continuity on both sides.
8. Faulty wiring between battery positive and headlight bulb socket.
9. Weak charging alternator/generator.
10. Faulty voltage regulator/rectifier ground or overcharging.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
http://www.r6messagenet.com/forums/r6-maintenance-technical/102278-headlight-wont-turn-electrical-problem.html
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The headlight does not work. fuses are ok


Check your ignition wiring, normally for AHO bike headlight are connected to ignition switch.

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Hi and welcome to FixYa,

Check the starter switch. There is a hidden switch inside the starter switch. When the starter switch is pressed, this hidden switch disengages the headlight. This is to ensure that the starter gets maximum power when starting and not partially robbed by the headlight. Depending on the version, this switch would be connected to the black/red & blue/white wires.

A way to confirm is to partially jumper these 2 wires.

Good luck and thank you for asking FixYa.

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Hi and welcome to FixYa,

The headlights and tail lights passes through separate 20 Amps fuses.  The headlights uses separate relays for the lo & hi. Both are supplied from the main switch through a brown/blue wire.

Good luck and thank you for asking FixYa.

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I have a 2005 Kawasaki Vulcan 800 and the headlight suddenly stopped working. I looked for fuses and can't find any. The headlight appears to be good. Any suggestions?


you can remove the head light bulb, power the bulb with a charger or check it with voltmeter. if bulb is good, make sure the ground is good on the light housing. if fuses are good, could be the actual switch on the handlegrips

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i had the same same problem with my 1992 vulcan 750. more than likely it is your reserve lighting devive located on the right side battery box. have you had a problem with your regulator/rectifier lately or a power surge of some type?

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