\| Home \|

7 Way RV Connector

Pictured below is the Pollak 7 way connector, which is the connector style in most common use on RV trailers and is becoming increasingly popular on horse and utility trailers. This connector is also manufactured by the Theodore Bargman Company and there are also some generics around. They are supposed to be interchangeable and the wiring color code is maintained among the various brands.

As you can see in the illustration below the back side of the connector body is labeled at each terminal. The labels are listed below with the function assigned to that pin.

On the tow vehicle side with the exception of 96-98 Ford and Dodge pickups and SUV's with factory installed trailer wiring, wire color alone should not be relied on, always test and match the function to the appropriate terminal.

On the trailer side RV's for the most part are wired to match the connector colors. Any plug that has been changed or extended, along with horse and utility trailers should be tested when replacing for any reason to be sure the function matches the terminal.

It should be noted below that the center terminal is labeled as an auxiliary circuit, most commonly used for backup lights not a ground terminal as many try to make it.

Also after the connector diagrams find more information on wire colors used by GM, Ford, and Dodge.

Wiring Code 7 way Car End
#	Color	Gage	Circuit Function
1	white	10	common ground
2	blue	12	electric brake
3	green	14	tail/running lights
4	black	10	battery charge (+)
5	red	14	left turn/stop
6	brown	14	right turn/stop
7	yellow	14	auxiliary/back up
NOTE: #7 is the center terminal and currently is most commonly used for backup lights.

Wiring Code 7 way Trailer End
#	Color	Gage	Circuit Function
1	white	10	common ground
2	blue	12	electric brake
3	green	14	tail/running lights
4	black	10	battery charge (+)
5	red	14	left turn/stop
6	brown	14	right turn/stop
7	yellow	14	auxiliary/back up
NOTE: #7 is the center terminal and currently is most commonly used for backup lights.

This chart should be used as a general guide only, you should always test before connecting your wiring.

This chart also may not be accurate for vehicles with factory installed trailer harnesses. In past 2-3 years manufacturers have begun to match the wire colors to the code for the common 7 way RV connector. More on that after the chart.

Caution if your vehicle has a diagnostic indicator that tells you when a lamp is burned out or not functioning, you may need special wiring adapters and testers. Not using these adapters may cause damage to the vehicle wiring or computer.
function	GM	Ford	Chrysler
left turn & brake lights	yellow	lt green w/orange stripe	dk green
right turn & brake lights	dk green	orange w/blue stripe	brown
tail lights	brown	brown	black or black w/yellow stripe
back up lights	lt green	black w/pink stripe	violet
ground see note 1	black	black or grey	black
In addition to the above some cars and trucks have a separate light for the brake light, most commonly identified by amber turn lenses in the rear. Chrysler and Jeep may have the separate light and use red lenses. If you have this type of wiring a converter is required.
brake light	lt blue or pink	red w/green stripe	white
Note 1: We recommend attaching the trailer harness ground directly to the frame or a solidly attached sheet metal part, using a screw or bolt. The single most common cause of trailer lighting problems is a poor ground on the tow vehicle or trailer.

The common flat 4 wire connector used on boat, snowmobile, and light utility trailers most commonly uses the following code.

Flat 4 wiring code
white	ground
yellow	left turn/brake light
green	right turn/brake light
brown	tail

Factory installed wiring harnesses frequently match the flat 4 colors.

Notes about GM OEM wiring harness. Most GM vehicles except '99 & 2000 Silverados match the following.

GM trailer wiring code
white	ground
yellow	left/brake
green	right/brake
brown	tail
light green	backup
blue	trailer brakes
red *	12 volt +
* Pickups only: since approximately 1996 the 12 volt + wire is orange. The orange and blue wires are in a separate bundle taped to the wire harness that runs down the frame on the drivers side. A white wire may also be found in that bundle, it is a brake light wire which is not normally used for trailer wiring.

!! WARNING !!
When using vehicle manufacturer supplied brake control connector harness, DO NOT match colors, consult the charts below. We recommend that you also use a test light or voltmeter to confirm the listed wire function.

Cheverolet/GMC brake control connector wiring harness
color code for factory supplied harness
GM supplied brake control harness	Tekonsha brake control wires All electronic models	function
red	black	+12 volt
light blue	red	stoplight
black	white	ground
dark blue	blue	trailer brakes
brown	not used
NOTE: The above applies only to the GM factory supplied harness, if using Tekonsha harness #3025, the harness colors match the brake control

Dodge tow vehicles with the Factory Tow Package Brake Connector

Dodge vehicles with this package are equipped with a 15 amp fused power line which is insufficient for 3 & 4 axle (6 or 8 brake) applications. For 3 & 4 axle (6 or 8 brake) applications a separate power wire should be installed directly from the battery positive to the brake control and should include an inline 30 amp auto reset circuit breaker.

Dodge/Chrysler brake control connector wiring harness
color code for factory supplied harness
Dodge/Chrysler supplied brake control harness	Tekonsha brake control wires All electronic models	function
red w/black tracer	black	+12 volt
white w/tan tracer	red	stoplight
black	white	ground
blue	blue	trailer brakes
NOTE: The above applies only to the Dodge/Chrysler factory supplied harness, if using Tekonsha harness #3020, the harness colors match the brake control

Ford tow vehicles with the Factory Tow Package Brake Connector

Ford vehicles with this package are equipped with a 20 amp fused power line which is insufficient for 3 & 4 axle (6 or 8 brake) applications. For 3 & 4 axle (6 or 8 brake) applications a separate power wire should be installed directly from the battery positive to the brake control and should include an inline 30 amp auto reset circuit breaker.

Ford brake control connector wiring harness
color code for factory supplied harness
Ford supplied brake control harness	Tekonsha brake control wires All electronic models	function
pink	black	+12 volt
red	red	stoplight
white	white	ground
dark blue	blue	trailer brakes
brown	not used
NOTE: The above applies only to the Ford factory supplied harness, if using Tekonsha harness #3035, the harness colors match the brake control

Nissan tow vehicles with the Factory Tow Package Brake Connector
using a red/green stop light wire
Nissan supplied brake control harness	Tekonsha brake control wires All electronic models	function
red	black	+12 volt
red/green	red	stoplight
black	white	ground
brown/white	blue	trailer brakes
red/blue	not used
NOTE: The above applies only to the Nissan factory supplied harness, Tekonsha does not supply a harness for this vehicle.

Toyota tow vehicles with the Factory Tow Package Brake Connector
using a green/white stop light wire
Toyota supplied brake control harness	Tekonsha brake control wires All electronic models	function
black/red	black	+12 volt
green/white	red	stoplight
brown	white	ground
red	blue	trailer brakes
green	not used
NOTE: The above applies only to the Toyota factory supplied harness, Tekonsha does not supply a harness for this vehicle.

Toyota tow vehicles with the Factory Tow Package Brake Connector
using a green/yellow stop light wire
Toyota supplied brake control harness	Tekonsha brake control wires All electronic models	function
black/red	black	+12 volt
green/yellow	red	stoplight
white/black	white	ground
red	blue	trailer brakes
green	not used
NOTE: The above applies only to the Toyota factory supplied harness, Tekonsha does not supply a harness for this vehicle.

Phone 780.928.3912 \| Home \|
Norpine Auto Supply (96) Ltd assumes no responsibility in errors in this file. Use at own risk.