Power Door Lock Fuse Blowing

Finding the source of a dead short that keeps blowing fuses can often be a real headache.

Power door lock fuse blowing.

Ive disconnected the brake controller the cig. Power door locks are prone to failures due to electrical interruptions corrosion broken wires or blown fuses. You probably have a wire shorted to ground somewhere. Systematic troubleshooting procedures are needed along with a good.

The door locks also get power from the fuse relay panel under the hood on the drivers side. When i got home i noticed the fuse for the door locks was blown. Slightly easier you could also inspect the wiring for a short very low resistance to ground and trace the short. 1997 chevrolet c3500 ive recently had the dash apart to fix the defrost diverter.

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. Suggest starting w power lock solenoid and see if it is drawing too much current and blowing fuse. You should get a test light and start tracing wires in your door panel. 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.

This will be tedious but may id source of current draw. My door lock and window lock keep blowing my fuses it is blowing fuses for a reason. Iv since had the dash back apart and replaced the door lock relay. There are three primary components of the power door lock system that can fail resulting in a useless power door lock.

Haven t found the door lock relay itself yet however. A fuse is a low resistance resistor that creates overcurrent protection. Which blew the fuse within 15 miles. Worked fine for a week until i hooked up my camper again.

I hooked up my camper and a few mile down the road i could smell electric burning.