What does a power door lock control module do?
Door lock actuators are an electronic component found on vehicles equipped with power door locks. They are the electronically controlled actuators in every single door that are responsible for locking and unlocking the power door locks when the switches are pressed.
What module controls door locks?
The body control module (BCM) supplies a voltage to each door lock switch. When you move the switch to the lock position, the switch grounds the supply voltage and the BCM sees a full voltage drop. It interprets a full voltage drop as your request to lock the doors.
What is door Control Module?
The Door Control Module (DCM) is responsible for controlling and monitoring various electronic accessories in a vehicle’s door. These include locking, driver door switch pad, child lock switches,window control and many more.
What are the symptoms of a bad door lock relay?
Usually a bad or failing door lock relay will produce a few symptoms that can alert the driver of a potential problem that should be serviced. One of the first symptoms of a possible problem with the door lock relay are door locks that function intermittently.
What are the symptoms of a bad door lock actuator?
3. Power door locks do not function. Another symptom of a potential problem with the door lock actuators are power door locks that do not function. If the door lock actuators fail, they will disable the power door lock feature from working.
How does a car door lock relay work?
They make the task of locking the vehicle’s doors as simple as pressing a button on the key fob or inside of the vehicle. The door locks are electronically controlled, and as is the case with many other automotive electrical circuits, they will run their power through a relay.
What causes a power door lock to not work?
An inoperative power door lock can be caused by the switch, solenoid, wiring problem or mechanical problem within the linkage of the affected door.