Although locks are very efficient in their work, usually many problems develop. The good thing is that you can easily solve the problems and correct them.
How to solve Locks
If none of the locks work, you should take a look at the fuses and circuit breakers. You must turn the power lock switch their positions locking and unlocking while listening to the clicking sound coming from the relay. If you hear the clicking sound, you should test the power relay to determine if you are getting the correct voltage switch.
If the relay gets the right tension, but the tension does not come out, you should replace the relay. If voltage is reaching the relay, there are chances that the engine internally corroded and needs cleaning. If you have the skills you need to disassemble the engine and clean. If you do not have the skills you should ask a professional to help with the cleanup.
If one or two doors stopped working, the problem must be in the doors. What you need to do is remove the door panel and check if the engines have 12 volts. You should note that you must confirm while holding the button on the driver door to the lock position. You should also check the tension in the unlocked position.
If you get 12 volt locked and unlocked positions should take a look at the engines. If you do not receive 12 volt motors is likely that one or both of the child break into the door hinge area.
You have to hit the harness in more detail in the door to inspect the breaks. Please note that you may have to disconnect the rubber door cover to access the child. You must repair the breaks using solder or crimp connector.
Tips to consider
To facilitate your work, it is advisable that you have locks on doors wiring diagram with you. This will make it easier for you to locate and identify cables and other areas that could have a problem.
If you are wondering where you can get the diagram, you should take a look at your service manual motor vehicles. If you do not have the manual, you can buy in stores that sell auto parts.