Trailer lights problem

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Jul 27, 2009 | 05:22 PM

shov76

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Trailer lights problem

Having a problem with the trailer lights lately. HD tow package but no runnig/park lights. No juice to the pin marked running lights. Any idea of how it runs back?. Is this part of the 2 splice blocks I see under the truck/left frame rail under drivers seat?. Any schematics or help on this one? Have juice to the fuse and relay. Sshould it click when the key is on or could there be a short?. I know....lots of questions but the feedback would be appreicated.
Thanks in advance,
Shov

Jul 27, 2009 | 06:42 PM

GaryJr

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From: Wilton Wisconsin

Just out of spite have you changed the fuses! you will have one for turning each side and one for the running, I have had a fuse before that looked good but changed it and lights worked! put the fuse to a ohm meter and yes it was bad just looked good! Good luck!

Jul 27, 2009 | 09:30 PM

alloro

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From: 0,0,1

Quote:

Originally Posted by shov76

Is this part of the 2 splice blocks I see under the truck/left frame rail under drivers seat?.

Should it click when the key is on

Yes the 2 splice block could be the problem, it was on my expedition. I had to repair two wires there that were corroded.

Any relay for the parking/running lights should click when the parking lights are turned on. Since these light work whether the key is on or off, any relay clicking will follow the light switch and not the ignition key switch.

Jul 28, 2009 | 09:30 PM

shov76

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On the money Garyjr.

. forgot to CHECK THE FUSE!!!!!! All set now thanks for the feedback. Always think the worse and forget about the easy fix first. That old gag!!!!!!!!!