Solutions for 12 Volt Accessory Circuit Not Active on a Truck

Question:

Im not getting 12 volt on any prongs on either plugs bumper or in bed . I have checked fuses and relays !! All good or changed !! Without 12 volt power the battery want stay charged on the break away !! Thanks for your help !!

asked by: Kirk B

Expert Reply:

If you have a GMC or Chevy truck it could be simply that the connections under the hood of the truck just haven't been made. For whatever reason GM does not complete this circuit on all of the trucks with 7-ways so you have to do it manually. I attached a couple help articles that cover this.

Aside from that the problem would have to be wiring related or fuse/relay related.

One option you have would be to bypass the factory wiring and run your own 12 volt circuit straight to the battery. You would need 10 gauge wire like part # 10-1-1 sold by the foot and a breaker like part # 9510. You would just run the wire from the 12 volt pin of the 7-way at the rear of the vehicle up to the positive post of the battery through the breaker.

expert reply by: Jameson C