Testing Door Lock Actuator

The voltage is measured when the power lock button is pressed.

Testing door lock actuator.

If the door lock actuators fail they will disable the power door lock feature from working. There appears to be 5 pins in the harness connecting to it. To diagnose your mechanic may need to take the door cover off and test the voltage at the door lock actuator following the wire diagram. Car door does not unlock lock with remote.

Unplug the door lock actuator electrical connector. It doesn t seem to be doing anything at all when i try to lock. Then use your test light or digital meter to check for power and ground at the connector when you operate the lock unlock switch. You should see the voltage polarity toggle with each switch activation.

Door lock systems operate the actuator by toggling positive negative voltage to the actuator. 2004 honda odyssey ex passenger m. Helpful guide on diagnosing power door lock problems with the passenger multiplex control unit and the door lock actuators. Is there a way i can test this thing to see if it s bad by running 12 volts to it or something.

I think the problem with my door locks is the passenger side actuator. This will require the driver to use the key to lock or unlock the doors and can disable the power door locks completely for vehicles that do not use a traditional key such as newer luxury vehicles. If you are working on the rear doors of a four door sedan make sure that you turn off the child safety lock to test the repaired door lock actuator correctly. Just a short video to show how you can test a door lock actuator using a car battery or a car jumper.