Ranger bed trailer wiring

[ChaseCarConsortium]

Trying to figure how to wire trailer using factory twilight harness. Can’t wrap my brain around “combining” the 2 different harness’s

Pulling with 93 ranger (3 bulb taillight)

90 ranger bed (2bulb taillight) on a utility trailer frame with no wiring. However do have the harness and tailoghts from the 90. Obviously I’ll have to add lengths of wire and was gonna use 4 pin trailer connectors. But I’m struggling figuring out what to wire to what. Could use pin-outs of both connectors, and not sure how to combine the 2 different bulb for tail/turn on the 93 into the 1 shared one on the 90.

Any help be appreciated, especially connector diagrams . I’ve had 10 rangers from 89-05 models, but electrical is a definitive weak spot of mine

 

[kimcrwbr1]

You should be able to get a plug and play trailer harness there is a connector on the frame you just put a tee in. Then you can wire the third light from the trailer harness?

 

[kimcrwbr1]

The 1990 chassis has the two wire system and the 1993 lights require the three wire system. The tee connector for a four wire trailer on the 95 has a three wire to a two wire converter i wouldnt know how to go the other way? Your chassis wiring in the 1990 does not support the three wire taillights.

 

[adsm08]

You will need to add a trailer converter to your truck's wiring. Then you can just find the appropriate wires on the 90's harness and attach them to the correct pins on your trailer plug.

Personally, I'd use a 5-pin and wire up pin 5 for reverse lights.