Tail light wire color
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Senior User
Joined: May 2010
Posts: 302
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From: Richmond, VA
Tail light wire color
I'm supposed to help a friend move tomorrow. A friend of his has a small trailer he has offered to let us use. I have a ball on my step bumper (don't worry, probably nothing heavier than a couch will be on the tiny trailer at a time), but no wiring harness for the trailer lights. I picked up a pretty straight forward universal 4 wire kit to slap on in the morning. I was wondering if anyone knew off hand the wire color for the left and right turn signals and brake lights? I'm sure I could figure it out by following the wires and checking with a multimeter, but we have probably a full day of moving crap tomorrow, and I'd like to just go splice it in in the AM with no fuss.
Thanks!
Thanks!
Tuned
Joined: Nov 2009
Posts: 250
Likes: 1
From: Austin, Tx.
Generally speaking,
Brown=Tail lights/marker lamps
Green=Left hand turn and brake light
Orange or yellow=Right hand turn and brake light
Your wires may or may not have tracers on them, and/or the colors faded, but this will get you in the game I think.
Easiest way to check is with a test light, while using the lights on the truck.
Brown=Tail lights/marker lamps
Green=Left hand turn and brake light
Orange or yellow=Right hand turn and brake light
Your wires may or may not have tracers on them, and/or the colors faded, but this will get you in the game I think.
Easiest way to check is with a test light, while using the lights on the truck.
FTE Emeritus
Joined: Jan 2006
Posts: 2,288
Likes: 200
From: springfield Missouri area
Generally speaking,
Brown=Tail lights/marker lamps
Green=Left hand turn and brake light
Orange or yellow=Right hand turn and brake light
Your wires may or may not have tracers on them, and/or the colors faded, but this will get you in the game I think.
Easiest way to check is with a test light, while using the lights on the truck.
Brown=Tail lights/marker lamps
Green=Left hand turn and brake light
Orange or yellow=Right hand turn and brake light
Your wires may or may not have tracers on them, and/or the colors faded, but this will get you in the game I think.
Easiest way to check is with a test light, while using the lights on the truck.
Green is right turn/stop
Brown is tail/ marker
yellow is left/stop
Lead Driver
Joined: Oct 2003
Posts: 8,476
Likes: 37
From: Madison, WI
Brake lights should NOT depend on the brown wire; that's the parking/tail light wire. Sounds like you're grounding one circuit through the other. Are you running a separate ground wire from the trailer to the truck? Depending on ball contact for the ground is always iffy.
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