Trailer Lights Gurus--Got a Question.

[npalen]

Go back a reread some of the posts he was replying to, and what he replied with. Pretty sure this never said the actuator is on the truck:

Come on guys. Give it up.

 

[Doughknob]

There is only one wire besides the ground wire. So the signal for all the functions has to go thru that wire. Right?

Also on LED trailer lights I think it is the number of LED's that are lit to distinguish between the various functions. (dim and bright, blinking etc)

I understand the seperate filaments in incandescent lights but, again, how the signal for seperate filaments is sent thru the one wire. (different voltage?)

4 wires there should be!

 

[bcp]

The tail-stop-turn trailer lights I've seen with 2 wires were grounded with the mounting bolt. One wire was tail, the other was stop-turn.

Bruce

 

[Doughknob]

U keep saying, "1 wire." I dont get that. What 1 wire are u talking about. Mine has 4: 1 ground, 1 for running lights, 1 for left turn/ flas/ brake, and 1 for right turn/ flas/ brake.

 

[npalen]

4 wires there should be!

Yes, four wires at the connector. White is common or ground, brown is running (tail) lights, yellow is left side flashing and green is right flashing. My trailer harness has just the two wires going to each light.

 

[npalen]

The tail-stop-turn trailer lights I've seen with 2 wires were grounded with the mounting bolt. One wire was tail, the other was stop-turn.

Bruce

Hmmm. Maybe now we're getting somewhere!

 

[Doughknob]

Yes, four wires at the connector. White is common or ground, brown is running (tail) lights, yellow is left side flashing and green is right flashing. My trailer harness has just the two wires going to each light.

I see 3 on those units in the amazon picture. White is gnd, low brightness is the brown on your connector (running), high brightness is the green or yellow on your connector (turn/flash/brake)

 

[Midniteoyl]

Another concern is there are two other colored wires in addition to the white wire on each light. The diagram below shows the two colored wires attached to seperate leads. My trailer just has the white wire on each side plus a colored wire so I spliced the two colored wires of the light together with the colored trailer wire at each light location. Maybe this is incorrect but not sure how else one would do it.

Hook the Brown wire to the Black wire on the LEDs. This is your 'running lights'.

Hook the Yellow wire to the Left LED's Red wire. This is your Left Stop/Turn.

Hook the Green wire to the Right Led's Red wire, this is your Right Stop/Turn.

White wires from all lights then go to ground, either chassis (can be via mounting bolt. On your LEDs its a White wire.) or directly to the white wire on the plug (preferred).

 

[npalen]

U keep saying, "1 wire." I dont get that. What 1 wire are u talking about. Mine has 4: 1 ground, 1 for running lights, 1 for left turn/ flas/ brake, and 1 for right turn/ flas/ brake.

The confusion is the number of wires at two different places. You're talking about at the vehicle/trailer connector, right? Yes, four wires.
The one wire I mention is in addition to the white wire on the trailer harness at each light location.

 

[Doughknob]

The confusion is the number of wires at two different places. You're talking about at the vehicle/trailer connector, right? Yes, four wires.
The one wire I mention is in addition to the white wire on the trailer harness at each light location.

I see 3 at each light?