trailer lights
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trailer lights
Howdy all.
1976 F250 4X4 Ranger XLT/360
I have an issue that I "assumed" to be a trailer wiring issue, but after replacing the hack wiring job done by the po, the problem still exists (so much for bad mouthing the po
).
The issue:
When I plug my trailer in, I get;
left and right blinkers.
both brakes
running lights
Now when I turn on my headlights, I get;
No blinker to the right
when I turn on my left blinker, the left blinks, as does the right (faintly) and both turn signals on my dash light up.
The trailer plug wiring "appears" to be factory (or dealer) installed. None of the wiring has been hacked and all the truck lights work as they should when the trailer isn't plugged in.
At one time this trailer worked fine with the truck, this issue presented itself this past winter.
Thanks for any help or idea's that you might have, it's much appreciated.
Todd
1976 F250 4X4 Ranger XLT/360
I have an issue that I "assumed" to be a trailer wiring issue, but after replacing the hack wiring job done by the po, the problem still exists (so much for bad mouthing the po
).The issue:
When I plug my trailer in, I get;
left and right blinkers.
both brakes
running lights
Now when I turn on my headlights, I get;
No blinker to the right
when I turn on my left blinker, the left blinks, as does the right (faintly) and both turn signals on my dash light up.
The trailer plug wiring "appears" to be factory (or dealer) installed. None of the wiring has been hacked and all the truck lights work as they should when the trailer isn't plugged in.
At one time this trailer worked fine with the truck, this issue presented itself this past winter.
Thanks for any help or idea's that you might have, it's much appreciated.
Todd
Cargo Master
Joined: Oct 2010
Posts: 2,674
Likes: 16
From: Ideeho
Do you have a separate ground wire between the truck and trailer??? Have you checked continuity thru that wire and your plug with a DVOM???? If you don't have a good dedicated ground between the truck and trailer, trying to achieve a ground thru the trailer ball can cause all kinds of havoc.......
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Thanks for the reply.
The trailer is wired so that both taillight grounds are through the plug to utilize the truck as ground.
The truck has a round 4 pin connector. The trailer has a flat 4 and there's a converter (flat to round) between the two.
Everything is new on the trailer now (including the converter plug), but the problem is the same as the old wiring.
I just went out and rolled around under the rear of the truck, but cannot seem to locate the ground for the round 4 trailer plug on the vehicle.
The trucks wiring to the trailer plug appears to be a plug and play, as there are no spices.
The trailer is wired so that both taillight grounds are through the plug to utilize the truck as ground.
The truck has a round 4 pin connector. The trailer has a flat 4 and there's a converter (flat to round) between the two.
Everything is new on the trailer now (including the converter plug), but the problem is the same as the old wiring.
I just went out and rolled around under the rear of the truck, but cannot seem to locate the ground for the round 4 trailer plug on the vehicle.
The trucks wiring to the trailer plug appears to be a plug and play, as there are no spices.
Cargo Master
Joined: Oct 2010
Posts: 2,674
Likes: 16
From: Ideeho
Could be that it is using a "T tap" wiring connector.....They plug into the original tail light harness plugs so that you don't have to splice anything. IIRC though they use an external separate ground wire that should be attached to the truck frame........
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