Power Door Lock Fuse Blowing

Essentially the fuse takes a large amount of electrical current and converts it into a smaller more manageable amount of current that the door lock actuator can have.

Power door lock fuse blowing.

Worked fine for a week until i hooked up my camper again. 50 amp fuse b 2 provides power to the locks tail lights sunroof if you have one stop lights tailgate fog lamps if equipped and interior lamps. Iv since had the dash back apart and replaced the door lock relay. Power door locks are prone to failures due to electrical interruptions corrosion broken wires or blown fuses.

1997 chevrolet c3500 ive recently had the dash apart to fix the defrost diverter. When i got home i noticed the fuse for the door locks was blown. Finding the source of a dead short that keeps blowing fuses can often be a real headache. Which blew the fuse within 15 miles.

I hooked up my camper and a few mile down the road i could smell electric burning. Remove door panel and route current flow through multimeter rated for 20a. Haven t found the door lock relay itself yet however. Power door lock fuse keeps blowing.

This will be tedious but may id source of current draw. Find out why a lack of any movement in door locks is most likely a result of a blown. My door lock and window lock keep blowing my fuses it is blowing fuses for a reason. You probably have a wire shorted to ground somewhere.

Suggest starting w power lock solenoid and see if it is drawing too much current and blowing fuse. The door locks also get power from the fuse relay panel under the hood on the drivers side. Ive disconnected the brake controller the cig. Systematic troubleshooting procedures are needed along with a good.

There are three primary components of the power door lock system that can fail resulting in a useless power door lock.