trailer wiring.

mack

NAXJA Forum User

Location

gone fishin....

• Jun 11, 2006

• #1

i need some help here, i'm tryin to wire up my boat trailer lights, i went out and got brand new trailer lights, a t-plug for the xj harness, after hooking it all up, only the left side works right!, i made sure ALL grounds are good, i made sure all the blubs were good, i don't know what more to do, i only have running lights on the right side, no brake or blinkers
this is the harness i got.

but i also got a taillight conveter too, but i think it's the same things as the first harness i got, do i need them both?
i have this too.

 

L

Lou

NAXJA Forum User

Location

ToronNo/Hamilton

• Jun 11, 2006

• #2

Are you sure that the wiring on the trailer is good?

I would use the first adapter shown -- with the built-in tap -- along with the test-light from the second set.

That should allow you to determine if the Jeep wiring is good.


(alligator clip to WHITE(exposed contact), then use probe on the other 3 contacts)

GREEN - left turn/brake
YELLOW - right turn/brake
BROWN - tail lights

 

Last edited: Jun 11, 2006

G

gjxj

NAXJA Forum User

Location

ohio

• Jun 11, 2006

• #3

There is only one wire for the running lights, so if some of them are out its definately a trailer wiring or bulb prioblem.
One thing that can happen is your brand new lights have the bulbs not seated in them properly...been there.

You are right the first harness has a converter in it so you dont need the second.

 

mack

NAXJA Forum User

Location

gone fishin....

• Jun 11, 2006

• #4

but the trailer works fine with other trucks, i don't have right side power from the converter, i think its bad.

 

G

gjxj

NAXJA Forum User

Location

ohio

• Jun 12, 2006

• #5

Well I'm stummped. The plug has 4 wires, ground, left stop/turn, right stop/turn and running lights. The running light power is split for the two sides on the trailer (probably right at the plug, two brown wires go to the same pin)
In any case try a test light or dmm on the output plug. To get fancy they sell a test plug at the auto store that has 3 led's on it..

 

mack

NAXJA Forum User

Location

gone fishin....

• Jun 12, 2006

• #6

i run LED taillights, could that be an issue??

 

scoobyxj

NAXJA Forum User

NAXJA Member

Location

Coshocton, OH

• Jun 12, 2006

• #7

Possably IIRC the converters used to make trailer lights work with XJ's require at least one reguler bulb in each circut to function properly.

 

langer1

NAXJA Forum User

Location

Mineral City,Ohio

• Jun 12, 2006

• #8

I got all LED's with no problems.
My guess it the trailer is non-standard wiring, how many bulbs are there?

 

langer1

NAXJA Forum User

Location

Mineral City,Ohio

• Jun 12, 2006

• #9

White is ground, black is running, green is left, yellow is right.
The trailer pin with two wires is ground.

 

mack

NAXJA Forum User

Location

gone fishin....

• Jun 12, 2006

• #10

it's just a trailer light kit from wally world, i'm pretty sure it's standard, i do have a new t-connector coming, when i put a test light in the plug from the jeep, it has no power coming from the right side.