How To Diagnose Door Lock Actuator

Symptom summary the power door locks are all inoperative or a single door lock is inoperative.

How to diagnose door lock actuator.

The switch provides power to the door lock solenoids. Door lock systems operate the actuator by toggling positive negative voltage to the actuator. By operating a remote device or keypad to unlock the door by pressing on the unlock button on the door panel cluster. You can unplug the door lock actuator and probe the connector side with a test light or an automotive meter.

Most power door. Remove the door panel to access the door lock actuator. Door lock actuator troubleshooting 1. The automotive meter option works best in this situation.

Power door locks behave erratically another symptom of a potential problem with the power door lock actuators are. Just a short video to show how you can test a door lock actuator using a car battery or a car jumper. Unplug the door lock actuator electrical connector. 11 plug in power for the actuator and other electrical connections.

Unusual noises coming from inside the door are one of the first symptoms of a potential problem with a power door lock actuator. When you operate the lock in different directions you should see 12 v across the electrical connector. Visually inspect the actuator to ensure it s mounted properly and the linkage is not binding. Test the actuator function here by locking unlocking the door with the manual interior door lock button.

This is video to show how to diagnose a a door lock actuator fault and determine if it is a issue with the switching of the powers and grounds for the actuat. Set your meter to. Diagnose power door locks don t work properly. This makes diagnosis straightforward.

Power door locks do not function. Then use your test light or digital meter to check for power and ground at the connector when you operate the lock unlock switch. Unusual noises coming from inside the door unusual noises coming from inside the door are one of the first symptoms. You should see the voltage polarity toggle with each switch activation.

If the rods are connected properly the door will lock and unlock. Put on your safety glasses. Remove the actuator connector.