Wiring diagram from truck to trailer

Spark plug wire diagram for 99 dodge dakota
This should work. Let me know

The brake switch at the pedal does have six wires, but none go to the multifunction switch (on the steering column). The white wire with tan tracer goes to the combination flasher to be integrated with the turn signals/hazard lights. The combination flasher is under the dash next to the steering column and has a sixteen pin connector (ten of which have wires).

Dark green with red wires the left stop turn signal Dark green with brown is the right stop turn signal Black with yellow is the tail lights.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

you will need to check the wiring under the bumper where the trailer wiring is with a test light and with the different lights working.you will probably have to move back in the wiring by 6" and retest until you find were the loss of power is.you don`t say if all the lights don`t work or just certain ones.the brown wire is the tail light,green is the right signal light,yellow is the left signal light and white is the ground wire.you could have broken wires at the trailer hook up itself.

Try http://www.etrailer.com/faq-wiring.aspx.

use a test light, the one that does not light it with no pressure on pedal & lights it with pressure on pedal is the one you want

CAV CIRCUIT FUNCTION 1 Z13 12BK GROUND 2 B40 12LB TRAILER ELECTRIC BRAKE OUTPUT 3 L76 12BK/OR TAIL LIGHT (Trailer Tow Relay in PDC) 4 A6 12RD/TN* FUSED B(+) (40A, Always Hot, F8 in PDC) 5 L63 16DG/RD LEFT REAR TURN SIGNAL TRAILER TOW 6 L62 16BR/PK RIGHT REAR TURN SIGNAL CONNECTOR 7 L1 16VT/BK BACK-UP LAMP FIGURE 1: 7-Terminal Trailer Tow Connector

there is no factory connector you must tap into the existing wiring for brake, turn signals, tail and running lights, they make special adapters to "piggy back" into these wiries, U-Haul trailer rental can do (install and sell) this kit for u very cheap.

Call dealer & ask them to run your vin# to see if it came with towing package. They shouldn't mind. If not, you'll have to wire it in yourself.

I'm assuming you're just going to splice into the tail light wiring so that's what these wire colors are:
at the tail lamp 3 way connector:
black and yellow = park lamp
dark green and brown = left turn signal
there should be another connector with violet and black wire for reverse lights.
the stop lights are turned on through the turn signal circuits.