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Expert Answers about Chevrolet Silverado Classic


  • Troubleshooting Trailer Running Lights with 2007 Silverado 1500
  • The lid of your Silverado's power distribution box should have a legend indicating the function for each of the fuse positions. Check that for a 15-amp fuse labeled TLR PARK that should be in a fuse location near the outside edge of the power box. Check that it is not blown and that there is not just a dummy fuse in that position. If the fuse is good then check that the main ground wire for both the truck's and the trailer's wiring harnesses is secured to a clean bare metal surface that...
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  • Troubleshooting Curt Brake Control Harness # C51352 Installation in 2007 Chevrolet Silverado Classic
  • 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 vehicle-side connector is under the dash in the electric junction box. The box interior is shown in the photo provided; the correct connection port for the harness (the second one from left on the top row) is highlighted in red. There are one...
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  • Why am I Not Getting Power on My 7-Pin Connector for My Tekonsha Prodigy?
  • If you are getting the "NC" error message on your Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional # 90885, this could mean a few things given that you are not getting power on the ground and brake. I went ahead and attached the error code description from the instructional manual. Since you are not getting any power, I recommend checking all connections of the 7-way harness to make sure there are not any shorts anywhere along the wires. Another thing to check...
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  • No Trailer Brakes with Brake Pedal Pressed on a 2007 Chevy Silverado Classic
  • On a brake controller the red wire is associated with the brake pedal. Use a circuit tester such as # PTW2993 to test the red wire. It should show power when you step on the brake pedal. If it does not have power then you could have a blown stop light or CHMSL fuse. It could also be that the red wire is not in the correct position for your 2007 Chevy Silverado Classic. Then end that plugs into the truck should look like the picture I have included. If the red wire is in a different position...
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  • Buzzing Sound Behind Wheel of Trailer When Brake Controller Connected on 2007 Chevrolet Silverado
  • I spoke with my contact at Tekonsha and it sounds like you may have the wrong plug-in wiring adapter. To install the Tekonsha Primus IQ Trailer Brake Controller, # TK90160, in your 2007 Chevrolet Silverado Classic you will want to use wiring adapter, # 3015-P. To determine if you have the correct harness you will want to follow these steps. Connect the trailer to your Silverado and the controller should display a "C." Next turn on the headlights and check to see if the "C" changes to numbers....
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  • Troubleshooting OL Error Message on Hidden Hitch Brake Controller # 80550 on 2007 Chevrolet 4WD 3500
  • An OL error message on your brake controller indicates an overload error which could be caused by a bad ground or a short in the blue brake output wire. It sounds like the position of the wiring could be changed when the trailer is jacked up. Due to this, a nicked or loose wire may be touching the frame or some other metal component when the trailer is not jacked up so be sure to check the wires to ensure there are no broken or nicked spots. If the issue still exists, you will want to...
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  • Troubleshooting No Green Light on Tekonsha Voyager Brake Controller
  • According to the troubleshooting guide for the Tekonsha Voyager Trailer Brake Controller # 39510 when there is no green light with the trailer connected then that means you either have corrosion on the trailer plug contact or you have a loss of power or ground connection. Check the 7-Way connector both on your tow vehicle as well as your trailer being sure to clean any debris or corrosion that you find. Once that is done check to make sure that all of your ground connections on your trailer...
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  • What Might Cause Curt Weight Distribution Head to Bend Release Lever for Spring Bar
  • Most likely you took a turn too sharply or jacknifed the trailer backing it up which caused the damage you mentioned to your Curt weight distribution head # C17307. Best option once you get it replaced is be careful not to turn the trailer too sharply when backing up to prevent this.
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  • Troubleshooting Tekonsha Prodigy P2 Brake Controller Staying Lit and Numbers Flashing
  • It does sound like your Tekonsha Prodigy P2 Brake Controller # 90885 is just in need of a manual reset. The only way to really do this though is to unplug it from power by removing the plug at the back of the controller itself or unplugging from a factory port behind the truck's dash (if it was equipped with one). If you truly aren't able to access the plug then your only option will be to sever the black 12V wire from the back of the controller to cut off power. Once you are able to...
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  • Troubleshooting P3 Brake Controller Not Able to Lock Trailer Brakes
  • That's an odd problem to have with what we know as the very reliable Prodigy P3 # 90195 brake controller. Do you have the gain turned all the way up and are sliding the manual override all the way when testing it? Is the controller level from side to side and facing the rear of the vehicle squarely? Typically the only time we'll see issues with the P3 not activating properly is when it's not mounted properly.
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  • What is the Factory Wiring Harness Color Code for a 2007 Chevy Silverado
  • The colors that GM typically uses for their factory trailer wiring are as follows - Dark Green - Right Turn/Brake Lights Yellow - Left Turn/Brake Lights Brown - Tail Lights White - Ground Light Green - Backup Lights Blue - Electric Brakes Red/Black - 12 Volt Power We had a 2007 Chevy Silverado with the factory trailer wiring on our lot, so I went out and verified that it had the same color code. I also noticed a white tag on the wiring harness that listed the functions of each wire...
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  • Malfunctioning Right Turn and Brake Lights with Factory Installed 4-Way Trailer Connector
  • Since you have a factory 4-Way and 7-Way, they will be wired to the same harness on the vehicle. The extra 3 wires for the 7-Way go directly to the plug but the 4 shared light wires should be split. We need to determine if the problem is between the 4-Way and the harness connector or if it is further up the harness in the vehicle wiring. Open the cap for the larger round 7-Way at the rear of the vehicle. As you look into it, the blade pin in the 3:00 position would be for right turn and...
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  • Trailer Brakes Will Not Lock Up with Primus IQ Brake Controller # TK90160 in 2007 Silverado 1500
  • The fact that your trailer brakes will not lock up at 20-25 mph speed does not necessarily indicate a problem with the brake controller. The best way to isolate the problem is to apply a circuit tester to the wires leading into one of the trailer electric brake assemblies to read the voltage reaching the brake. You can use a voltage tester like # PT89ZR to read the voltage being delivered to the brake assembly. You should read +12 volts or very close to it at each brake when the controller...
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  • Trailer Brakes are Randomly Engaging
  • It sounds as if you might be using the wrong brake control wiring adapter. Unplug the harness from the connector under the dash, and examine how it is pinned out, comparing it to the photos I have edited for you. In the 2007 Classic Silverado model, the red wire should be pinned in the D location as shown in the photo. If the wire is in the wrong location, you can remove the blue clip from the connector, and use a small screwdriver to unclip and free the red wire and move it to the correct...
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  • Furrion Vision S Left and Right Cameras Are Backwards
  • Thanks for the purchase of the Furrion Vision S Wireless RV Observation Camera System with Side Marker Light Cameras - 5" Screen # FCE48TASL-05 and we can help you out with the backwards cameras. What you'll do is go to Setup on the menu, press the Mirror option, select the camera you want to change, and you will have the option of selecting Rotate, Flip, or Flip and Rotate; if you want to check it out yourself you can find this on page 21 of the instructions. The monitor paring button...
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  • Service Auxiliary Trailer Brake Light Stays Illuminated After Installing Tekonsha Prodigy P3 # 90195
  • Since your Tekonsha Prodigy P3 # 90195 is working and correctly activating your trailer brakes, you need to take your vehicle in to a dealer to be flashed. This issue can occur when disconnecting an integrated controller and installing an aftermarket controller. Basically, the computer on the truck thinks there is an issue with the controller because the factory controller has been removed. A dealer can flash the onboard computer to resolve this problem.
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  • No Accessory Power At 7-Way Connector On A 2007 Chevrolet Silverado Classic
  • I would check the power distribution box under the hood of your 2007 Chevy Silverado Classic. The box is located on the inside of the drivers side fender. Remove the cover, and locate the two auxiliary power posts on the inboard side of the box. If you have the factory 7-way on your vehicle, the power posts should have wires connected to them that will give you power for the brake controller and power for the 7-way connector at the rear of your vehicle. These power posts will also have...
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  • No Power On Electric Brake Output Pin on 2007 Chevy Silverado 7-Way Trailer Connector
  • If your 2007 Chevy Silverado is the new body style then you will need to make sure that the blue brake controller wire is connected to the dark blue tow package wire. The tow package wire bundle is up under the dash and to the left of the steering column held together with a white tag. There also may be some connections that will need to be made under the hood. The help article I have linked will help with that. If your 2007 Silverado is a Classic (looks like a 2006) then instead of...
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  • Troubleshooting Lippert Ground Control 3.0 System
  • As you might have seen, you've got an error on the left front jack on your Lippert Ground Control # LC358590, which is what the LF error corresponds to; the right jack won't move automatically until that error is resolved so you will need to recalibrate the system. You will want to manually extend all of the jacks 6"-8", once you've done that press and hold RETRACT until ALL jacks start moving. Once they begin moving in unison, release the retract button and they will finish bringing themselves...
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  • Troubleshooting Trailer Brake Controller Brake Power at 7-Way Without Trailer Connected
  • When you don't have a trailer hooked up to your 2007 Silverado, the 5 o'clock pin where the brake controller output is, should not have any power until you put a draw on that wire with your test light like circuit tester # PTW2993. As soon as a draw is placed on that pin, there should be a dim light that should increase in intensity as you hit the manual override slide on your controller. A proportional brake controller will not show braking because you are not moving except with the...
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