How To Wire Relays For Power Door Locks

If the door lock relay has any internal or wiring issues it can cause the door locks to function intermittently.

How to wire relays for power door locks.

Remove the old door lock relay. Locate the relay next to the cluster of different relays and solenoids. Power door locks function intermittently. Install the new door lock relay.

You can have your lock unlock switch either throwing power to the relays to activate them or throw a ground to them. Open the hood if it is not already open. The lock and unlock wires below refer to the switch wires not the motor legs. The switch when moved in either direction applies both power and ground directly to motor legs without the use of any relays.

The remote has 10 wires coming from its harness. Door locks 5 wire alternating 12 volts positive type c relay wiring diagram. I know enough about electrical wiring to efficiently burn the house to the ground. If the ground is good remove the door trim panel and check for power and ground coming into the power door lock actuator.

On the right side you have a single relay. Find the door lock relay. Using a pair of needle nose pliers pull out the old relay. You tell us how you want to use your lock unlock switch as to whether you want it to throw power to the relays to lock and unlock the doors or have it to where they throw a ground.

We can then help with specific wiring info. One of the first symptoms of a possible problem with the door lock relay are door locks that function intermittently. Except at the switch in this case both motor legs rest at ground. When you look in the fuse box you have three relays that work the power locks.

That s where most wire breaks occur. Facing the box you have two relays on the left side one on top of the other. Get the new relay out of its package. Should you need to add relays for a 3 wire negative type b door lock system use the diagram below.