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post #1 of 7 Old 08-05-2014, 12:08 PM Thread Starter
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question with trailer brake control

I have a 97 f250 xl truck. It has a hitch and a 4 pin. What do I need to setup a 7 pin and trailer brake controller? Is there factory wiring I can plug into or will I need to run all of my own wires?

Any help is appreciated

97 Single Cab F250 4x4 5 speed

Swapped D-60
Locked front and rear
160 sticks
Wildman Tunes
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T500 HPOP
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post #2 of 7 Old 08-05-2014, 12:19 PM Thread Starter
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Theres 1 round plug that not currentlybeing used at the back of the truck where the connector is for the 4 pin, also, theres 3 open connectors to the left of the obd2 port in the cab

97 Single Cab F250 4x4 5 speed

Swapped D-60
Locked front and rear
160 sticks
Wildman Tunes
Hood Stack
OFE clutch
T500 HPOP
Linex rockers
35" MTR Kevlars
and a bunch more...
Nitro41 is offline  
post #3 of 7 Old 08-05-2014, 03:53 PM
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behind the power distribution box under the hood there should be two relays, these are part of the trailer package. you can see them in teh botttom right conrer.



if you have them that's great if not, go find a truck as a JY that does, take them and the 7 pin trailer connector from the rear. plug the seven pin in the rear using the 4 pin (left, right, tail, ground) that your current lights are plugged into and the other unused three pin (positive, brakes, backup lights). you can kinda see them in the bottom left of this pic



i don't know where plug under the dash is but it is 5 pin and should be under the little cubbyhole somewhere, i believe it is gray

94.5 F250 Reg Cab 4x4 5 speed 4.10 276000 plus miles

97 F350 Crew Cab LB 4x4 5 speed 3.55 320000 plus miles (parts truck)



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post #4 of 7 Old 08-05-2014, 09:18 PM Thread Starter
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Are those 2 relays on a seperate harness that goes into the cab?

97 Single Cab F250 4x4 5 speed

Swapped D-60
Locked front and rear
160 sticks
Wildman Tunes
Hood Stack
OFE clutch
T500 HPOP
Linex rockers
35" MTR Kevlars
and a bunch more...
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post #5 of 7 Old 08-06-2014, 03:00 AM
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they have separate wires that plug in right under the brake booster. the wiring is already there, just not used

94.5 F250 Reg Cab 4x4 5 speed 4.10 276000 plus miles

97 F350 Crew Cab LB 4x4 5 speed 3.55 320000 plus miles (parts truck)



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Originally Posted by alberta 7.3 View Post
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post #6 of 7 Old 08-06-2014, 03:39 AM
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I found the plug under the dash in my 97 right in the middle of the Trans tunnel in the harness that runs under the dash. It was next to the connector for the AIC.


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94 F-250 reg cab 4x4 5spd 7.3 stroke. 3inch downpipe, 4 in exhaust. super duty turbo with 1.0 non wastegated exhaust housing ww2 and 360 thrust kit. Intercooler, MB diesel hpop, driven diesel complete efuel, 6637 air filter, kingpin dana 60.

09 F150 Lariat crew cab 5.4L v8


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post #7 of 7 Old 08-06-2014, 03:40 AM
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One thing I did notice though when I hooked mine up through the factory wiring. If I'm backing up with the hazards on it sets my trailer brakes.


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94 F-250 reg cab 4x4 5spd 7.3 stroke. 3inch downpipe, 4 in exhaust. super duty turbo with 1.0 non wastegated exhaust housing ww2 and 360 thrust kit. Intercooler, MB diesel hpop, driven diesel complete efuel, 6637 air filter, kingpin dana 60.

09 F150 Lariat crew cab 5.4L v8


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