Door Lock Actuators

A door lock actuator contains an electric motor and an integrated microswitch (position switch). The rotary motor movement through the gear drive mechanically moves the locking latch.

When the lock actuator is operating, the motor is powered until the position switch signals the "locked" position. If the vehicle is locked from the exterior, the motor is powered further and the gear mechanism is moved beyond the locked position into the "double lock" position. The motors must be powered (in reverse) to release the double lock. The inside door handles will not unlock a "double locked" vehicle.