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1983 - 2012 Ranger & B-Series All Ford Ranger and Mazda B-Series models

trailer brake controller/7 pin connector

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Old Apr 6, 2012 | 10:05 AM
  #1  
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gogreenwave
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trailer brake controller/7 pin connector

Hello,

I was wondering if anyone could help me out on this- I have an '08 ranger with the class III towing package and the 4L V6. I need to tow a small trailer that has a 7 pin connector. Currently I only have the 4 pin flat connector, so I need to wire up the 7-pin and I also need to put in a brake controller for the trailer. Are thier any wiring harnesses that are pre-wired under the dash or near the reciever that will make these easier to install or do I have to run wires from the battery and all that?

Thanks,

Matt
 
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Old Apr 6, 2012 | 01:56 PM
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From: Dexter, MI
You will need a fifth wire for a brake controller, so you will need a seven pin plug on the truck end. You will also need to wire the controller from the battery back to the truck plug.

Let us know how you make out.
 
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Old Apr 9, 2012 | 10:01 AM
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is there a plug/wiring harness under the dash or will I need to run wires through the firewall?
 
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Old Apr 9, 2012 | 12:09 PM
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From: Dexter, MI
Electric trailer brakes pull a fairly high current draw. You need a separate fused wire coming from the battery to provide power for the brakes. I'm not aware of a wire that is heavy enough available under the dash (that is not to say that there isn't such a wire).
 
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Old Apr 13, 2012 | 04:46 PM
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99F150
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From: Sioux Falls SD
No wire under dash like F150. Need to run new for power (charge storage battery on trailer) and electric brakes.
 
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Old Apr 15, 2012 | 05:32 PM
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You will have to run everything your self

Fused or circuit braker 12v(12gauge wire)
Ground(12 gauge)
12v from brake light switch
And 12gauge wire run from controller to the plug at the rear of the truck
 
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Old Apr 16, 2012 | 09:38 AM
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Thanks everyone- I ordered a brake controller, 7 pin plug, and an installation kit that should have everything I need- can't wait for them to get here
 
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