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Check the ground on the trailer..and then check ur hitch and ball..i bought a new ball last night and the lights didnt work until the ball got a little wear on it.
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∙ 14y ago
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Where is your issue when all the boat trailer lights work when they are hanging but when you touch the bolts on the light to the trailer they get stuck on?
poor ground wire
When you plug your boat trailer light to your 2006 GMC sierra the lights on the trailer will not come on if you use another truck the lights will work where do you look is it a fuse or a circuit break?
Trailer Lights Work on Other Vehicles but Not MineIF the lights [tail, turn, and brake] are working on your vehicle, AND the trailer lights will work on some other vehicle, that confirms:That the problem is NOT in your vehicle's wiring system.That the problem is either in the trailer wiring, OR is caused by the IMPROPER connection of the connector plug wires to the wiring of your vehicle.It is critical that the connector plugs [on the vehicle and the trailer] are properly connected to the correct wires.The fact that NONE of the lights work when connected to your truck suggests that the defect is related to the GROUND wireas that is the only wire common to all the different light circuits.
Why do truck turn signal lights work but not the turn signal lights on the trailer?
There are separate fuses for trailer signal lights in main fuse panel
Why don't the clearance lights on the trailer work when connected to the trailer harness all other lights on the trailer work?
Check your fuses and look for a dead-short on the tail light wire (probably brown).
Your trailer lights come on but the turn signals will not work?
check for power at the trailer connector.
Why do trailer brake lights work and tail lights don't?
there may be a short get longer wires
Why do the trailer blinker lights both blink when tail lights are on blinkers do not work when tail lights are off?
Check for a bad ground
When my running lights are working on my trailer my turn signal lights and brake lights don't work but if running lights are off turn signal and brake lights work?
I would check the running lights for one with a short. I had the same sort of thing with my trailer and I spent way to much time troubleshooting the brake and signal wires. Turns out a running light bulb connector was grounding out on the trailer and messing it all up.
Why does your left side trailer blinkerbrake light not work on your Avalanche The right side trailer lights work fine as do all lights on the truck itself work fine. There's no 12v at the 7-prong.?
If the Avalanche came with the factory trailering package, the trailer lights are separately fused from the other truck lights. Check your fuse panel layout for a 10-amp fuse for left side and a separate fuse for right side turn signal/brake light on the trailer.
Do I need a modulator for a trailer hitch on your 1993 Subaru Legacy in wagon in order for the trailer lights to work?
Yes. You need a converter to combine the turn signals with the brake lights.
The trailer lights don't work when the cars park lights are on but the wiring in the trailer is ok and the trailer uses a 7 pin plug and the cars trailer plug is wired to the left tail indicator light?
check the ground wire on the trailer. if it is corroded at all they may not work. take a file to where the ground wire is hooked up to make sure it is on bare metal
Where is the trailer light fuse in a 2006 peterbilt 387?
I have no running lights on my 2006 Peterbilt 387 all of the lights work
