i think that in some states it is illegal not to have one, but im pretty sure that if your car's brakes are good enough, you won't need one. but, it is terrible for your car's brakes if you dont have one and you are hauling a trailor. If the trailer has electric brakes - YES. Otherwise, no.
If you want trailer brakes you need a brake controller.
There is a connection issue between the trailer brake controller and the trailer.
By following the instructions that came in the box of the new trailer brake controller.
If the 2004 GMC Envoy came with a tow package, then there should be a trailer brake controller harness. It would be located up under the dash near the brake pedal.
It isn't there, Dodge didn't wire the Dakota with one. You will have to wire the brake controller your self.
The brake controller has to be hooked up to a power source. The controller also has to be hooked to the brake switch or tail lights, then to the plug for the trailer.
When one is using a trailer on their car, an electric brake controller measures the car's braking speed and adjusts the electric braking power of the trailer to correspond. This helps avoid collision between trailer and car.
Usually there is a switch under the dash above the brake pedal arm.
not sure, but most of them have a orange wire and a blue wire run from under the brake booster, to the back. these are perfect for your trailer brake controller and break away power.
It doesn't.... By the e-brake under the dash, there is a bundle of wires (4) that are blunt cut and taped together. These get spliced to the brake controller wires by function, not by color.
Buy kit at Wal-Mart, auto parts, or U-haul comes with instructions
On a 2003 Lincoln Navigator : Fuse # 29 is a 30 amp mini fuse for the trailer tow electric brake controller , trailer tow 7 wire connector ( electric brake )