Trailer brakes worked initially but later didnt.Do you think its the fuses 30 & 40Where are they located in the fuse block on my 2008 silverado 1500 series?
Expert Reply:
The fuses that manage your towing system are located under the hood of your truck. Please consult your vehicle owner manual for the exact location of the fuses. Are you getting output from your controller itself? Using a circuit tester, like part # 40376, I would check the pin for the brake wire on the 7 way connector when the manual override switch is activated.
If you see no voltage there, check the blue wire as it exits the back of the controller, again with the override activated. If nothing there, check the black wire at the back of the controller to make sure it is getting voltage to operate. If it is not getting voltage, that is when you would want to check the fuses.
expert reply by: Mike
