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Integrated Brake Control

rfinnigan

By rfinnigan
in Ask A GM Technician

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rfinnigan Enthusiast

rfinnigan

Posted
Posted

Just bought a new 2008 Silverado 1500 Crew with Max 6.0 and Intergated Brake Control. I plugged my camper in and all lights work but brake control does not work. It doesn't appear to see the trailer as I get no message of "Trailer Connected" etc.

 

My question is .. am I not doing something correct? It seems odd it does not function because the truck only has 500 miles on it although stanger things can happen. The trailer works fine connected to my 2005 F150 with factory connection.

 

Thanx

PasoRoblesJimmy Enthusiast

PasoRoblesJimmy

Posted
Posted

In my 99 Silverado 2500, I had to install/add a couple of missing 40amp Maxifuses to the underhood fuse box. One of the Maxifuses is for the brake controller. The other Maxifuse is for the 12v line to the trailer battery. Trailer wiring is prewired and included in the Heavy Duty Trailer Towing Package.

 

Corroded/dirty contacts in your 7-way connectors (trailer and truck) is a frequent cause of no-connection indications.

 

Other than missing fuses or dirty contacts, you could have a defective Brake Controller, a defective Brake Control Adapter Harness, or defective wiring.

 

The Tekonsha Prodigy brake control installed in my 99 Silverado is the best brake controller that I have ever used. It automatically levels itself and automatically adjusts the trailer brakes for level, uphill and downhill towing.

rfinnigan Enthusiast

rfinnigan

Posted
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Posted

As I was checking my connections I did find that I had no aux power at the trailer so your reply Sparks was well timed. I only hope at this point that the brake setup for this trailer is powered by the onboard battery. I know that the trailer seperation braking does draw from the onboard battery.

 

We'll see when I get back with the fuse......

asilverblazer Senior Enthusiast

asilverblazer

Posted
Posted

OK, did you connect the two under hood wires to the fuse block? One is for AUX power one is for trailer brakes. Was that a yes on fuses too? Two wires under hood, two fuses. At least this is how non-integrated controller trucks are. Maybe double check truck harness out put to trailer harness inputs. Make sure functions are in the correct positions in relation to each other.

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