Confirmation an Electric Window Switch for a Buick
Moderate any fuse form to be blown, and evaluation the authority window action. A blown fuse may demonstrate a window Engine that is getting exhausted. It is acceptable training to research all fuses when imaginable and not honorable the ones labelled for the window Engine. This prevents mistakes and eliminates all possibilities of a blown fuse career the culprit. An automotive circuit tester is all that is needed to diagnose problems, and this is all within the capabilities of most mechanics.
Instructions
1. Fix the ability distribution blocks (fuse blocks) and analysis all of the fuses with an automotive line tester.Efficacy window motors used in most Buick cars are reversible electric motors. This type of Engine allows the method of Engine step to be changed by reversing the polarity of the electricity applied to the Engine by the switch. Testing is done at the Engine and requires the Emigration of the door panel for access.
2. Remove the door panel by removing the screws located in the door pull, catch Mug and lower string of the panel. Then pull the door panel up and absent to remove it from the door. Hookup approximately your specific Buick can be found in your service manual, or an on-line resource like the ones listed in the resources section of this article.
3. Locate the power window motor and unplug the wiring harness from the motor connector. Attach the red lead of the automotive circuit tester to the positive battery terminal and the black lead to the negative battery terminal. Test for power at the motor connector terminals of the wiring harness, and work the power window switch up and down to see if power is supplied to the connector in one direction and not the other. Test both terminals of the connector in this same way, to insure that the switch is working properly. If the terminals do not change from power to ground when the switch is moved, suspect a faulty switch. If switching does occur, replace the motor.
