Suggest starting w power lock solenoid and see if it is drawing too much current and blowing fuse.
Power door lock fuse blowing.
There are three primary components of the power door lock system that can fail resulting in a useless power door lock.
The door locks also get power from the fuse relay panel under the hood on the drivers side.
My door lock and window lock keep blowing my fuses it is blowing fuses for a reason.
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.
Remove door panel and route current flow through multimeter rated for 20a.
You probably have a wire shorted to ground somewhere.
Slightly easier you could also inspect the wiring for a short very low resistance to ground and trace the short.
Power door locks are prone to failures due to electrical interruptions corrosion broken wires or blown fuses.
Power door lock fuse keeps blowing.
When i got home i noticed the fuse for the door locks was blown.
Systematic troubleshooting procedures are needed along with a good.
Find out why a lack of any movement in door locks is most likely a result of a blown.
Iv since had the dash back apart and replaced the door lock relay.
A fuse is a low resistance resistor that creates overcurrent protection.
Worked fine for a week until i hooked up my camper again.
1997 chevrolet c3500 ive recently had the dash apart to fix the defrost diverter.
Haven t found the door lock relay itself yet however.
You should get a test light and start tracing wires in your door panel.
Ive disconnected the brake controller the cig.
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.
Finding the source of a dead short that keeps blowing fuses can often be a real headache.