All power door locks not working on Buick?

Power door locks not working,basically,if one power door lock is not working and other power door locks are working,then problem is faulty door lock actuator,or door motor or issue with door switch.That has to be tested with voltmeter or 12 volt test light.
But if all power door lock are not functioning all together then, it can be circuit breaker issues.
There should be a circuit breaker for the door locks. Check for 12-volts on both sides of the circuit breaker. If it tests okay, check for 12-volts at the main switch in the driver's door. Basically in this cases,where all power door locks are not working,then its faulty circuit breaker or issue with main switch.

Getting this checked will help.

Thanks.

--------------

For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting

Working procedure of Power door lock on Vehicle?

http://howtobyme.blogspot.com/2011/11/working-procedure-of-power-door-lock-on.html

Car door lock Actuators?

http://howtobyme.blogspot.com/2011/11/car-door-lock-actuators.html

---------

The car will not start?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-start.html

-----------------

Car will not crank?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-crank.html

-----------

Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

-------------

How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

-----------------

How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

--------------------

How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-starter-in-car.html

-----------

car will turn over but will not start?

http://technoanswers.blogspot.com/2011/05/car-will-turn-over-but-will-not-start.html

-----------------

Car wont start?

http://howtobyme.blogspot.com/2011/10/car-wont-start.html

----------