Brake Control Wiring on a 2004 Chevrolet Silverado

Question:

I have a 2004 Chevy silverado 1500 that does not have a factory installed tow package, I purchased a factory hitch receiver and installed. will my pickup already have the appropriate wiring for a brake controller? If not what do I need to do?

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Expert Reply:

To install a controller on your Silverado, you will need to choose a controller and the appropriate brake controller wiring adapter. I recommend the Tekonsha Prodigy P2 # 90885 and Wiring Adapter, # 3015-P. The P2 is a great unit for the price, and is very easy to install and set up. One end of the adapter harness plugs into the rear of the controller, the other end will plug into the connector located in the junction box behind the emergency brake pedal in your Silverado. I will link you to our install guide that clearly shows how this is done.

Since your truck does not have a factory brake controller installed you will need to do some additional wiring. You should have a connector above the spare tire along the driver side frame rail (see link). You can use the OEM Style 7-Way and 4-Way Trailer Connectors for Ford and GM Trucks, item # HM40975, to install a 7-Way connector at the rear of the vehicle. Then, you will need to make sure that the wires under the hood are connected. Under the hood you should have a wire connected to both of the power posts adjacent to the fuse block. If the brake controller hot wire is not connected you can find it under the bracket in the corner of the engine compartment. Remove the bracket and the fuse block covers and you will see the wires that need to be connected. Connect the red wire with a ring terminal on it to the closest post. Your other wires should be ran by the factory.

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Robert G

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