Curt Brake Controller Not Working Correctly After Moving It From 2006 Silverado to 2001 Model

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Question:

Hi, I bought and used the controller and wiring adapter in my 2006 Chevy Silverado for about a year with no problems. I have since purchased a 2001 Silverado and put the controller in it. After install I get a red light to indicate the trailer is not connected. I then connect the trailer and the red light goes out. I can push the manual leaver and the brakes are applied. I can adjust the intensity and it does adjust accordingly. Now for the tricky part. I adjust the Sync control and nothing. From what I understand it is supposed to blink green, but does not, just blank. I step on the brake pedal and nothing. I push the manual leaver and brakes engage properly, push in the brake pedal again, and nothing. I then proceed to check the lights on the trailer to make sure all working, and I suddenly start to hear a wining noise. I look at the controller, and the brakes are engaged.no brake pedal pushed or manual pushed The only way to disengage is to unplug the controller. Plug controller back in, and same as before, wait a while and they engage on their own again. My question is, Did I somehow hook something up wrong, or has the controller gone bad?

asked by: David R

1

Helpful Expert Reply:

If you are using the same wiring adapter in the 2001 as you had in the 2006 Silverado, it would explain the problem you're having. Both model years use the same plug, but after the 2002 model year, GM changed the pinout on the connector under the dash. The 2006 Silverado uses the # C51352 wiring adapter, while the 2001 model would use the # C51342.

I've edited a photo for you showing the difference between the two connectors, you can move the red wire to the correct location by removing the blue clip from the side of the connector, relocating the wire and replacing the clip.

expert reply by: Mike L

1

click to enlarge

Answer 1

Hey Henry, I would say the most common cause is under/over inflation causing one to wear out faster than the others. With your wear being on the outside, underinflation causes that. Bent axles/spindles or damages suspension parts can also cause the…

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Answer 2

I am assuming you are speaking of the fuse that activates the power feed to the brake controller. The 30 amp fuse is installed in the power distribution box as shown in the photo I have edited. The power distribution box is located under the hood, on…

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Answer 3

On certain year Chevy trucks there are additional connections that need to be made under the hood to make everything fully functional. I have included a link to an FAQ article to help you. Make sure that you are plugging in the harness into the spot…

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Answer 4

There may actually be some additional connections that you will need to make under the hood. Take a look at the article I have linked that covers everything that you will need to do under the hood on your 2007 GMC Sierra Classic. First make sure you…

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Answer 5

You may or may not need an additional wiring harness to install the #C84VV. If your 2007 Chevy Silverado is the new body style you will not necessarily need the harness, but if it is a Classic you will need harness #C51352 because there is a port…

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Answer 6

The Curt Brake Control Harness you reference, part #C51352, is compatible with both time-delayed and proportional brake controllers from Curt and is intended for vehicles with factory tow package wiring. As you noted, the connection port for the…

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Answer 7

Thank you for your recent purchases from etrailer.com. The quick-connect brake controller adapter harness you purchased along with your brake controller, part #C51352, is the correct one for your 2006 Silverado. Brake controller installation in your…

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Answer 8

We do have a plug-in adapter for your 2006 GMC Sierra, but the Curt #C51451 that you referenced is a fit for Chevy Silverado and GMC Sierra pickups starting in 2014. For your 2006 Sierra you want the Curt #C51352 instead. This adapter will plug into…

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Answer 9

The correct Timbren Rear Suspension Enhancement System for a 2003 GMC Sierra 1500 LD is part #TGMRCK15S for extended or regular cab models and part #TGMRCK25S for crew cab models. The springs once installed should be anywhere from 1/2" -…

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Answer 10

The first thing to check is the wiring harness #C51342 for your 2000 GMC Sierra. Specifically, check the location of the red wire on the end that plugs into the truck. Make sure it is in the same location as the one in the picture. If not, or if any…

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Answer 11

To determine why you do not have any power on the blue brake output wire, I recommend starting at your brake controller. First, make sure the brake controller is on and receiving power. Most brake controllers have 4 wires, blue (brake output to…

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Curt Brake Controller Not Working Correctly After Moving It From 2006 Silverado to 2001 Model

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