Power Door Lock Fuse Blowing

Power door lock fuse keeps blowing.

Power door lock fuse blowing.

My door lock and window lock keep blowing my fuses it is blowing fuses for a reason. Worked fine for a week until i hooked up my camper again. Finding the source of a dead short that keeps blowing fuses can often be a real headache. 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.

Slightly easier you could also inspect the wiring for a short very low resistance to ground and trace the short. I hooked up my camper and a few mile down the road i could smell electric burning. Iv since had the dash back apart and replaced the door lock relay. 1997 chevrolet c3500 ive recently had the dash apart to fix the defrost diverter.

You probably have a wire shorted to ground somewhere. Systematic troubleshooting procedures are needed along with a good. Suggest starting w power lock solenoid and see if it is drawing too much current and blowing fuse. Haven t found the door lock relay itself yet however.

A fuse is a low resistance resistor that creates overcurrent protection. This will be tedious but may id source of current draw. When i got home i noticed the fuse for the door locks was blown. You should get a test light and start tracing wires in your door panel.

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. Ive disconnected the brake controller the cig. Find out why a lack of any movement in door locks is most likely a result of a blown. Remove door panel and route current flow through multimeter rated for 20a.

The door locks also get power from the fuse relay panel under the hood on the drivers side.