What are the common faults of car power windows?

[VanMaddox]

Common faults of car power windows: 1. The reason why the electric switch window does not move smoothly is mostly due to the exhaustion of oil in the door internal lifter, the inner cover should be removed and oil should be added; 2. If the glass cannot move at all, it may be a switch failure and can only be replaced; 3. If the electronic device does not work, check the fuse, the fuse is used for the power window; 4. When the switch action becomes worse and the window cannot be opened smoothly, the possibility of switch failure is very high; 5. Before oiling the internal mechanical device, first remove the inner cover, remove the hidden screws, and disassemble the quick switch; 6. Remove the inner cover, peel off the plastic paper for waterproofing below, and expose the lifting mechanism of the window; 7. Spray grease on the arm fulcrum and inside the gear, and spray while moving up and down, so that very small parts can also be coated.