Troubleshooting Draw Tite Brake Controller that Shows 9 Volts Regardless of Override Lever

Question:

I am getting a continuous 9 volts out of the truck side of the 7 blade plug brake connector, brake on or not. I see the dot on the controller. No number is visible. If I engage the manual over-ride, there is no change. It may have killed my trailer brake as now even when I bypass it and go 12 volts to the trailer side 7 blade, there is no brake engagement/or click etc. I suspect I have some internal short and will need to replace the unit. Not sure about the trailer. Any thoughts? Thanks,

asked by: Mark

Expert Reply:

Your brake controller is definitely shot at this point based on what you listed so it would be the correct time to replace it with something like the # TK63VR which is very reliable and great performing.

Since you put 12 volts on the brake output circuit and the brakes aren't activating I'd suspect you have a short on the circuit somewhere. Did the connection spark at all when you made it? I would also recommend just checking over all of the wiring and seeing if you can find any cuts or breaks and fix as needed.

expert reply by: Jameson C