trailer brake controller harness

youngcummins08 · 11-03-2009, 08:47 PM

ok so we are wanting to add a trailer brake to dads 97 4x4 ext cab cummins. but we cant find the harness that the controller hooks to. where are the wires at.

__________________
my rig
96 2wd reg cab, 373k, K&N. Replacment airfilter, homemade 4in.

http://s338.photobucket.com/albums/n...n12350inhofer/

ryan_v2006 · 11-03-2009, 09:29 PM

Im about to put one in mine too I know that you have to run a power wire through the firewall to the battery with a circuit breaker in. And one has to be run to the back trailer plug. One has to be grounded. The other goes to the break light wire The color code should be with the controller. What brand of controller did you get?

__________________
98 with 180000 Mostly stock Baldwin BHAF with straight pipe

illflem · 11-03-2009, 09:31 PM

Mine were coiled up over by the top of the parking brake linkage and labeled trailer.
My trucks are both tow package though, not sure if they all came with the wires.

If you do find them beware, the wire colors don't just connect same Dodge color to same color on most controllers. All the same colors are on both under the dash and the controller.
Makes hook up a bit confusing.

__________________
Bill
'95 2500 4wd auto
'95 3500 5 speed heavy hauler
Not stock

E TEX RAM · 11-04-2009, 10:15 AM

Here is an article that may help. The plug is supposed to be blue in color by the emergency brake linkage if it came factory installed.

Here.

ykdave · 11-04-2009, 12:22 PM

Im at work right now so i cant repost my pics....

The factory harness comes out of the firewall in the top left hand side int he same area as most of the dash wiring. It is a short bundle of wires with a WHITE plug on the end and should have a tag on it that says something along the lines of 'trailer brake'

If you do not have it, you will have to go to the dealer and buy the pigtail harness that plugs into this, which is what you wire up to your brake controller.

Once that is out of the way, failing that the factory plug is still at the back of the truck, the factory trailer harness runs along the inside of the drivers side frame rail, you can trace it down from there.

__________________
97 Ram 2500 / 5.9ctd /NV4500/241DHD
Custom Intake Tube+ BHAF, Pump Tuning, Autometer Pyro and Boost gauges, Dual 4" stacks, 33x12.5 Mud terrains, posi-lok, One Hella sound system, tons more to come

youngcummins08 · 11-04-2009, 06:53 PM

well my 96 has the tow package and it had the harness right there to hook into, i didnt know if it was just the different years that made thing different or what. ill read up and try later. thanks

__________________
my rig
96 2wd reg cab, 373k, K&N. Replacment airfilter, homemade 4in.

http://s338.photobucket.com/albums/n...n12350inhofer/

ykdave · 11-04-2009, 08:30 PM

pics suck...

this is the plug under the dash...

This is the factory harness at the rear of the frame rail.

__________________
97 Ram 2500 / 5.9ctd /NV4500/241DHD
Custom Intake Tube+ BHAF, Pump Tuning, Autometer Pyro and Boost gauges, Dual 4" stacks, 33x12.5 Mud terrains, posi-lok, One Hella sound system, tons more to come

11-03-2009, 08:47 PM	#1 (permalink)
youngcummins08 Diesel Head Join Date: Jun 2008 Location: terre haute, in Posts: 1,165 Thanks: 4 Thanked 10 Times in 9 Posts youngcummins08's Truck Pics	trailer brake controller harness ok so we are wanting to add a trailer brake to dads 97 4x4 ext cab cummins. but we cant find the harness that the controller hooks to. where are the wires at. __________________ my rig 96 2wd reg cab, 373k, K&N. Replacment airfilter, homemade 4in. http://s338.photobucket.com/albums/n...n12350inhofer/

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11-03-2009, 09:29 PM	#2 (permalink)
ryan_v2006 Cummins Fan Join Date: Sep 2009 Location: Gillette WY Posts: 35 Thanks: 3 Thanked 0 Times in 0 Posts ryan_v2006's Truck Pics	Im about to put one in mine too I know that you have to run a power wire through the firewall to the battery with a circuit breaker in. And one has to be run to the back trailer plug. One has to be grounded. The other goes to the break light wire The color code should be with the controller. What brand of controller did you get? __________________ 98 with 180000 Mostly stock Baldwin BHAF with straight pipe

11-03-2009, 09:31 PM	#3 (permalink)
illflem Moderator Join Date: Nov 2005 Location: Montana Posts: 4,961 Thanks: 4 Thanked 143 Times in 131 Posts illflem's Truck Pics	Mine were coiled up over by the top of the parking brake linkage and labeled trailer. My trucks are both tow package though, not sure if they all came with the wires. If you do find them beware, the wire colors don't just connect same Dodge color to same color on most controllers. All the same colors are on both under the dash and the controller. Makes hook up a bit confusing. __________________ Bill '95 2500 4wd auto '95 3500 5 speed heavy hauler Not stock

11-04-2009, 10:15 AM	#4 (permalink)
E TEX RAM Cummins Fan Join Date: Jul 2009 Posts: 36 Thanks: 0 Thanked 0 Times in 0 Posts E TEX RAM's Truck Pics	Here is an article that may help. The plug is supposed to be blue in color by the emergency brake linkage if it came factory installed. Here.

11-04-2009, 12:22 PM	#5 (permalink)
ykdave Diesel Head Join Date: Feb 2008 Location: Yellowknife, NT, Canada Posts: 3,853 Thanks: 0 Thanked 76 Times in 62 Posts ykdave's Truck Pics	Im at work right now so i cant repost my pics.... The factory harness comes out of the firewall in the top left hand side int he same area as most of the dash wiring. It is a short bundle of wires with a WHITE plug on the end and should have a tag on it that says something along the lines of 'trailer brake' If you do not have it, you will have to go to the dealer and buy the pigtail harness that plugs into this, which is what you wire up to your brake controller. Once that is out of the way, failing that the factory plug is still at the back of the truck, the factory trailer harness runs along the inside of the drivers side frame rail, you can trace it down from there. __________________ 97 Ram 2500 / 5.9ctd /NV4500/241DHD Custom Intake Tube+ BHAF, Pump Tuning, Autometer Pyro and Boost gauges, Dual 4" stacks, 33x12.5 Mud terrains, posi-lok, One Hella sound system, tons more to come

11-04-2009, 06:53 PM	#6 (permalink)
youngcummins08 Diesel Head Join Date: Jun 2008 Location: terre haute, in Posts: 1,165 Thanks: 4 Thanked 10 Times in 9 Posts youngcummins08's Truck Pics	well my 96 has the tow package and it had the harness right there to hook into, i didnt know if it was just the different years that made thing different or what. ill read up and try later. thanks __________________ my rig 96 2wd reg cab, 373k, K&N. Replacment airfilter, homemade 4in. http://s338.photobucket.com/albums/n...n12350inhofer/

11-04-2009, 08:30 PM	#7 (permalink)
ykdave Diesel Head Join Date: Feb 2008 Location: Yellowknife, NT, Canada Posts: 3,853 Thanks: 0 Thanked 76 Times in 62 Posts ykdave's Truck Pics	pics suck... this is the plug under the dash... This is the factory harness at the rear of the frame rail. __________________ 97 Ram 2500 / 5.9ctd /NV4500/241DHD Custom Intake Tube+ BHAF, Pump Tuning, Autometer Pyro and Boost gauges, Dual 4" stacks, 33x12.5 Mud terrains, posi-lok, One Hella sound system, tons more to come