I try to provide tips to help you install on your vehicle.
How to wire door lock relays for aftermarket actuators.
Except at the switch in this case both motor legs rest at ground.
Door locks actuators reverse polarity positive switch trigger type d relay wiring diagram.
Both motor legs rest at ground at the relays.
How to wire automotive spdt relays.
Next with your multi meter probe each of the wires in this harness and write down the readings during lock unlock and at rest positions of the switch.
It is your responsibility to verify any.
To the coil of the respective relay.
How central door lock actuators and door lock relays work in detail.
Door locks 5 wire alternating 12 volts positive type c.
The switch when moved in either direction applies both power and ground directly to motor legs without the use of any relays.
To lock or unlock the vehicle polarity is changed on one motor leg via a positive pulse from a switch alarm keyless entry etc.