Expert Answers about Chevrolet

• Utility Trailer Brake Lights Not Working When Headlights are On, on a 2004 Chevrolet Trailblazer
• It sounds to me like you have a bad ground on the trailer. You will need to make sure the white wire from the 4-Way connector on your trailer is grounded properly and then check all of the ground connections on the trailer especially where the taillights are mounted to the trailer frame. Also, if the light brackets are bolted to the trailer check to be sure they are making good ground contact to the trailer frame. If a plastic license plate holder is mounted between the left side taillight...
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• Trouble Shooting a Brake Controller with No Power on a 2006 Chevrolet Silverado
• The first thing to check is to make sure that the plug is connected to the right port. There are at least two that the plug will fit into. Underneath the cover, you will go to the top row, 2nd from the left most port. If you are plugged into the left most port, the controller will not work. I have included a link to a brake controller install on a 2004 Chevy Suburban that shows where you should plug into. If this is not the problem, please write back with the part numbers for the brake...
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• Turning On Running Lights Activates Trailer Brakes on a Brake Controller in a 1999 Chevy Silverado
• This indicates a problem with the red wire. There are several wires that can carry the brake light signal, but only one that is a brake light only wire. the red wire should be plugged in right next to the white wire and above the black wire like in the picture I have included. If it does not seem to work, you can use a circuit tester like # PTW2993 if needed to probe the wires on the brake switch located above the brake pedal. You can attach the red wire to the brake switch wire that shows...
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• Error Code P0420 After Replacing Exhaust Manifold Gasket and Using MagnaFlow Catalytic Converter
• The most common things that can cause a P0420 error code are bad oxygen sensors, engine coolant temperature sensor malfunction (does not seem likely given what you have said), leaking exhaust, or a bad catalytic converter. Since you had a manifold gasket issue, it sounds like there could still be a leak in the system somewhere. This can happen with gasket replacement if any remnants of the old gasket were still on the block or manifold when the new one was installed. It could also have...
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• Troubleshooting Left Hand Turn Signal Malfunctioning on Trailer Plug
• Checking to see if the fuse is intact and the power to it and behind it is definitely a great start to determining what the issue might be why your left turn signal is not working properly. Since this issue is isolated to only one function I am leaning to towards it being a broken connection. First I would check all connections points and make sure that the wires are secure and free of damage. Look for any corrosion or wire damage within the connector, as well as the wires leading to...
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• Brakes Lose Power When Parking Lights are on With P3 Brake Controller on 2000 Chevrolet Silverado
• You are correct, GM did change the wiring configuration for the brake controller wiring adapter in 2003. The plug-in wiring adapter, # 3015-P, that you referenced is for most 2003 to 2006 GM trucks, which explains why you lose power to your brakes when using the parking lights. The adapter that comes wired for your 2000 Chevrolet Silverado is the Tekonsha Plug-In Wiring Adapter, # 3025-P. Instead of waiting a few days to receive the correct adapter, you could easily re-pin the adapter...
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• One Year Old Wiring Harness Shows Constant Power on Right Turn and Brake Circuit, 2003 Chevy Venture
• It sounds like the converter has gone bad in wiring harness # C55355 for your 2003 Chevrolet Venture. This can occur from a number of reasons. Corrosion buildup could cause a short. Check the trailer side and vehicle side connectors for corrosion and clean it out. Make sure the main converter ground is attached to a clean bare metal surface. Moving the ground might help. Also make sure the main trailer ground is good and that it and all of the trailer lights are grounded to clean and corrosion...
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• Why Would 5th Wheel/Gooseneck Trailer Wiring Kit Stop Reverse Light Circuit From Functioning
• If your trailer reverse light circuit was functioning before you installed the Hopkins part # 41157 but then stopped working after that would indicate that most likely one of the contacts is in the connectors of the kit isn't fully seated. Most of time all you have to do is unplug them and then replug them back in to clear that issue up.
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• Troubleshooting Yakima FullSwing Bike Rack that Moves in Hitch
• Sometimes with bike racks like the Yakima FullSwing # Y02465 that have knob anti-rattle devices the trick to getting them to get rid of all of the movement is to use one hand to move the bike rack around in the hitch and the other to tighten firmly on the knob at same time. Typically this gets rid of the last bit of movement.
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• Troubleshooting the 12 Volt Power Circuit of a Factory 7-Way Connector on a 2009 Chevy Silverado
• It sounds like there is an issue with the battery charge wire circuit that connects to the fuse block under the hood of your 2009 Chevy Silverado. I attached a link below to a page that shows how these connections are made. It is also possible that the fuse is blown on this circuit too, you should check your vehicle owners manual to determine which fuses pertain to the 7-way at the rear of your vehicle.
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• No LED Lights on Brake Controller
• Thank you very much for your purchase from etrailer.com of the Curt Spectrum Trailer Brake Controller # C51170. We appreciate your business and the order, and the issue with the Spectrum, per the troubleshooting section of the owner's manual, is that it does not have power or it is not grounded properly. So it seems the dealer did not install it correctly after your purchase from etrailer of the Spectrum brake controller.
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• No Power to Trailer Brake Controller on 2011 Chevy Traverse
• In regards to the trailer brake controller in your 2011 Chevrolet Traverse, you should have power to the display each time you start the vehicle. The display should then change when a trailer is connected but not every brake controller is the same. That said, if you don't have any lights or display when you start the vehicle then the first thing you should do is check the engine bay fuse box for the "TRLR BRK" fuse. If you have lights when you start the vehicle but no display change when...
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• Left Brake Light Not Working On a 14 Foot Utility Trailer Pulled by a 1999 Chevrolet Silverado
• I think you have started in the right direction. Tail lights are not internally grounded and must be grounded in some way to the trailer frame. The connector on the trailer should be secured to a clean surface on the trailer frame and each taillight assembly must be grounded either through the mounting bolts or a separate wire from the taillight to the trailer frame. If there is a plastic mounting bracket for the license plate between the left side trailer light and the frame this is many...
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• Brake Controller Installed on 2008 Silverado Not Receiving Power
• It sounds as if the controller might be installed incorrectly. You mention connecting the controller to an orange wire. The orange tow package wire is for an illumination circuit, and is NOT used when installing a brake controller. The red and black striped tow package wire would connect to the black wire on the controller, the dark blue wire on the controller connects to the blue wire on the tow package wiring. The red brake controller wire connects to the light blue wire on the tow package...
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• Incorrect Brake Control Install Caused 2011 Chevy Tahoe to Keep Running if Brake Pedal Is Held
• That is certainly a unique problem! But not to worry because I can at the very least tell you how the brake controller should be installed on your 2011 Chevy Tahoe. But before that, I recommend having the other issues on the Tahoe taken care of so that everything is back to normal before installing the controller. What I think is going on is power is going to the controller to tell it you are stepping on the brake. Where ever the controller was connected is drawing power through the ignition...
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• Tow Package Wire Shorted Out when Installing Brake Controller on 2010 Chevy Suburban
• On the tow package wiring for a 2010 Chevy Suburban the red/black wire supplies 12 volt power to the brake controller, the white wire is ground, the light blue/white wire is the brake light signal, dark blue is output to the trailer brakes, and orange is the center high mount stop lamp (CHMSL). If it was the brake light signal then you would look for the stop light fuse but might also want to check the CHMSL fuse to be on the safe side. But it sounds like you need to make the under the...
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• Excessive Noise When Using Curt A16 Fifth Wheel Hitch On 2015 Chevrolet Silverado 2500
• There is not an actual adjustment that can be made on the A16, part # C16621. The hitch has a pivoting head that is cushioned so a bit of movement may be present when towing. If you can find the source of the noise it can help. It may be caused by the slider or by the jaws on the king pin, or the large pin that is in the middle of the hitch. You may want to check out the Curt Fifth Wheel Rail Sound Dampeners, part # 16900. These are neoprene pads that fit between the hitch and the rails...
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• Trailer Lights Go Out when Vehicle Brake Pedal Is Applied and Both Turn Signals Blink
• This sounds like a ground problem. The first thing you should know is that testing the trailer with another vehicle is not a fool-proof way of determining wiring issues on the trailer. The other vehicle may have a wiring system that can overcome the ground problems that the intended vehicle cannot. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Make sure that...
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• Troubleshooting a Kat's Heaters Custom Fit Engine Block Heater # KH11484 Causes Outlet to Cut Out
• If you have a Kat's Heaters Custom Fit Engine Block Heater # KH11484 that you referenced and it is causing the outlet of your vehicle to cut out then the problem is that the outlet is getting overdrawn either by the heater drawing too much amperage for the outlet to handle or because the heater has a short in the wiring of it and that's causing the outlet to short out. I would recommend you go over the wiring of the heater looking for any cuts or other obvious signs of a short as that...
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• Which Trailer Wiring Harness is Correct for a 2018 Chevrolet Equinox LT
• If you do not have the factory tow package on your 2018 Chevrolet Equinox LT then the correct trailer wiring harness for you is the T-One Vehicle Wiring Harness part # 118750, not the Curt Wiring Harness part # C94FR. The Curt Vehicle Wiring Harness part # C94FR is only for model equipped with the factory tow package. There will still be a plug for the latter harness but if you do not have the factory tow package then the circuits may not all be ran to the power distribution center (PDC)...
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