How to troubleshoot a Chevy 2500HD trailer brake problem?
How to troubleshoot a Chevy 2500HD trailer brake problem?
On one of the studs there is supposed to be a red/black stripe wire. That supplies power directly to the #4 pin on the plug. If there is power at the stud where that wire is attached, but none at the plug, there is a break in that circuit. Make sure there is no corrosion at the stud and it is firmly connected.
What kind of battery does Chevy Silverado HD use?
I have a 2015 Chevy Silverado HD. Long story short, I have changed the emergency battery circuit from one that was powered by the brake circuit (from the manufacturer) to one that uses 12V from the truck. After making the change yesterday I had multiple faults for check trailer wiring.
Is there a diode tester on a Chevy 2500HD?
Yes, we are using a diode tester. No, there is no power on the #4 wire. Connected a light bulb to the Blue wire and to ground, applied the brakes, as soon as the connection to ground was made, the light bulb gave one quick flash then was out.
What kind of power wiring does a Silverado trailer use?
Trailer Power Wiring 2007 to 2013 Chevy Silverado 12 volt auxiliary. – YouTube Trailer Power Wiring 2007 to 2013 Chevy Silverado 12 volt auxiliary. If playback doesn’t begin shortly, try restarting your device.
Why does my GMC Duramax have no power to trailer?
Turned out that upon closer inspection the 40A fuse for Stud#1 was blown. It looked fine from the top but when I pulled it out it was no good. If it is hooked up and did blow a fuse it would be one of the square ones furthest inboard that protects the #1 post. Your slide must have overloaded the fuse. Mine is a 40 amp if I remember correctly.
I have a 2015 Chevy Silverado HD. Long story short, I have changed the emergency battery circuit from one that was powered by the brake circuit (from the manufacturer) to one that uses 12V from the truck. After making the change yesterday I had multiple faults for check trailer wiring.
Where are the trailer lights on a Silverado Sierra?
Also, its not a corrosion/rust/connection problem. Ruled that out and cleaned the connections anyway There are trailer fuses under the hood. Check em. On my trucks the trailer light fuses are inside the truck in the fuse panel, which is on the driver side of the dash only accessible when the door is open.
Why is my trailer not getting any power?
If you aren’t getting any power on the wires going into the connector, then the connector itself isn’t the issue. There’s something going on with the factory trailer wiring. Since all the fuses are good there’s likely a short somewhere on the wiring.
Where is the no power in trailer connector?
I have no power at the plug in the rear of the vehicle. I have connected the red power cable to the stud and there is a 40 amp fuse in. I have power at the stud and the fuse is good. The wire all the way back to the plug seems to be good but still no power.
What causes a Ding on a GMC trailer?
Hence the problem with GM trucks that have the 7-way on top: as the trailer side plug and wire hang and wiggle (imagine that, what a surprise for the GM engineers!), one or both of the two terminal connections (GROUND &/or BRAKE) can lose contact intermittently, causing the “DING]
If you aren’t getting any power on the wires going into the connector, then the connector itself isn’t the issue. There’s something going on with the factory trailer wiring. Since all the fuses are good there’s likely a short somewhere on the wiring.
Also, its not a corrosion/rust/connection problem. Ruled that out and cleaned the connections anyway There are trailer fuses under the hood. Check em. On my trucks the trailer light fuses are inside the truck in the fuse panel, which is on the driver side of the dash only accessible when the door is open.
I have no power at the plug in the rear of the vehicle. I have connected the red power cable to the stud and there is a 40 amp fuse in. I have power at the stud and the fuse is good. The wire all the way back to the plug seems to be good but still no power.
Why does my Chevy Silverado 2500HD stop working?
I have a 2011 Chevrolet Silverado 2500HD equipped with the factory integrated trailer brake control system. The trailer brakes have stopped working. Im trying to diagnose the cause. Used a tester at the truck plug in the bumper. turn signals, reverse light, and brake lights work but I have no output on the trailer brake output line.
Is there a problem with the ITBC trailer brake controller?
1st things first, you must have a TRAILER CONNECTED’ message before ItBC will work. Also, no ABS light on the instrument panel. If either of these are problem, no trailer brakes. It the message you receive says SERVICE TRAILER BRAKE SYSTEM, the problem is in the truck, not the trailer, 95% or more certain.
Is the brake controller on my Chev 2500 working?
I have a 2008 chev 2500 duramax and are having trouble getting the itergrated brake controller to work consistently on my tri axle trailer. Solid ground and good wiring continuity.
On one of the studs there is supposed to be a red/black stripe wire. That supplies power directly to the #4 pin on the plug. If there is power at the stud where that wire is attached, but none at the plug, there is a break in that circuit. Make sure there is no corrosion at the stud and it is firmly connected.
1st things first, you must have a TRAILER CONNECTED’ message before ItBC will work. Also, no ABS light on the instrument panel. If either of these are problem, no trailer brakes. It the message you receive says SERVICE TRAILER BRAKE SYSTEM, the problem is in the truck, not the trailer, 95% or more certain.
I have a 2011 Chevrolet Silverado 2500HD equipped with the factory integrated trailer brake control system. The trailer brakes have stopped working. Im trying to diagnose the cause. Used a tester at the truck plug in the bumper. turn signals, reverse light, and brake lights work but I have no output on the trailer brake output line.
Why are the brakes not connected on my 2015 GMC Truck?
The dealer tried other trucks – The 2014 did not show the error but all 2015 showed the same error. The third axle is outside their safety parameters according to the engineers at GMC. The truck shows this error repeatedly while traveling. They told us there is not a fix and they close our official complaint. 1 year later… 2 weeks later…
