Power Door Lock Relay Wiring

Here s a power door lock wiring diagram for a 2009 chevrolet malibu.

Power door lock relay wiring.

Using a mechanical latching relay like the pcb latching relay pictured here you can use a single negative output to alternately lock and unlock the doors. Remove the old door lock relay. For those located under the dash in the middle of the cab behind the stereo. Remove the panel that covers the area under the stereo.

Locate the door lock relay. That s where most wire breaks occur. Should you need to add relays for a 3 wire negative type b door lock system just change both normally open terminals 87 from 12v to ground. Using a pair of needle nose pliers pull out the old relay.

Here s how a body control module power door lock system works. If the relay and switch are working properly but you re not getting power and ground at the door lock actuator check the wiring harness in the hinge area of the door.