Door Lock Control Relay

Disconnect the relay connector and inspect the connector on the wire harness side. See Fig 1 and Fig 2 .
Connect the positive (+) lead from the battery to terminal 3 and negative (-) lead to terminal 4. Check that the solenoids operate in unlock direction. Then reverse the polarity and check that the solenoids operate in lock direction. If any of the solenoids do not operate, remove and test the solenoid.
If circuit operation is correct, replace the relay.

Fig 1: Identifying Door Lock Control Relay Connector Terminals

Fig 2: Inspecting Door Lock Control Relay Continuity