power lock problems

[tucsonjwt]

I would check to see if you have power at the door lock actuator when you operate the switch. I would pull off the door panel, reach in and disconnect the connector to the actuator, pull the connector out where you can see it, use a voltmeter and put the two probes on the connector tabs, operate the switch - do you show about 11 volts to the connector when the switch operates? If so, you have a bad actuator or the lock rod is hung up/rusted, etc. The rusted/hung up lock rod will eventually wear out the actuator motor - it will overheat trying to operate and burn out over time. Warning: I am not hip on auto electronics, but have learned some things the hard way. You can get a cheap voltmeter for less than $10 at places like Harbor Freight, if you don't have one. I have a nice collection of door lock and power window switches which I mistakenly replaced over the years because I did not check the obvious things first. Good Luck.