To test disconnect all locks and switch then replace fuse if don t blow start with driver door and reconnect lock check fuse see if it blew if not reconnect switch active lock check fuse see if ok.
Power door locks fuse blowing.
Maybe one of the lock actuators or a switch.
By process of elimination.
If the door lock relay has any.
Power door locks function intermittently one of the first symptoms of a possible problem with the door lock relay are door locks that function intermittently.
It s not rare for fuses to blow and when they do electrical current will stop running to the door lock actuator rendering the power door lock system useless.
The power door lock switch is a relatively simple rocker switch.
2002 dodge ram 1500 power door locks keep blowing fuse.
Dead power door lock switch.
Remove door panel and route current flow through multimeter rated for 20a.
One door at a time so disconnect 3 keep changing the active one till you find which one isnt working then test its circuits ok cheers rob.
Suggest starting w power lock solenoid and see if it is drawing too much current and blowing fuse.
Slightly easier you could also inspect the wiring for a short very low resistance to ground and trace the short.
This will be tedious but may id source of current draw.
You have a short somewhere in the system.
Keyless entry won t unlock or lock doors 25a fuse location m28 blows right away when attempting to put it back in.
Power door locks are prone to failures due to electrical interruptions corrosion broken wires or blown fuses.
Jul 20 2009 dodge ram 1500 cars trucks.