Headlights

CAL

MEMBER
FORD F-250

Ford f250 crew cab diesel 2005 68K. The truck has a headlight out on the right side but only on the low beam. I have checked the fuse and bulb. Some one said it could be a relay. Where is the relay located for the low beam right side? If not a relay problem is it maybe a short in the wire or what else?

5 Replies

MERLIN2021

MECHANIC
17,250 POSTS

Try checking the ground wire on that side. Black!

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Saturday, October 27th, 2007 AT 9:36 AM

CAL

MEMBER
3 POSTS

Thanks, this would be out in the location of the light
Is there a relay I should be checking?

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Saturday, October 27th, 2007 AT 9:46 AM

MERLIN2021

MECHANIC
17,250 POSTS

If the relay were bad, both would be out. It's either the bulb or the ground, try swapping the one that works into that socket as a test! If you have a test light unplug the pigtail from the bulb, turn lights on and test the colored wires, 1 is high the other is low, black is ground.

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Saturday, October 27th, 2007 AT 9:56 AM

CAL

MEMBER
3 POSTS

Are they grounded separately or do they share a common ground? If I have to pull a new wire I figure to come off the rely and if so where in the H@!# Is it located.

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Saturday, October 27th, 2007 AT 10:48 AM

MERLIN2021