How to remove and install the door lock motor?

Nov 28, 2023

How to remove and install the door lock motor?

1、Where is the door lock installed?

The door lock block is generally installed on the four doors of the car in front and back, left and right, when the door lock of a certain door cannot work normally and there is no action response, it means that the line or motor is damaged. At this time, it is necessary to take out the door lock from the door and replace the damaged parts inside the door lock with new parts to let the door lock operate normally.

2、How to disassemble the door lock motor?

First determine which door door lock is broken, remove the corresponding door interior guard (the following content takes the rear door lock as an example), remember to pull out some winding wiring harnesses after the interior guard is removed, so that it is convenient to remove the interior guard

Take out the rear door lock

Use a utility knife to cut out the plastic rivets on the rear door locks

Push the big pin out about 5 mm toward the metal surface, then push out the small pin completely, in the opposite direction to the big pin, until you hear the small pin fall inside the assembly, and put the small pin back into the original socket after opening the shell，But do not completely clamp in, the small latch of the rear door lock is used to fix the child lock mechanism, put it well so as not to hinder the shell reinstallation. Remember not to disassemble violently, otherwise the positioning hole of the child lock mechanism will break.

There are three buckles around the rear door lock block, which can be pried up with a small flat screwdriver, and the fixing screw can be unscrewed, and the lock block can be easily opened; After opening, gently pry off the motor with a small screwdriver.

3、How to install the door lock motor?

When the door lock block fails or cannot work normally, remove the door lock block and take out the motor to diagnose the reasons why it cannot be used, such as serious wear of the carbon brush, short circuit of the stator and rotor windings, high temperature and direct burning. At this time, you can directly replace a new door lock motor according to the original position placed in, pay attention to the position not to put backwards, the worm position of the motor should be facing the outside when installing and pay attention to the hole at the bottom of the motor is aligned。When the door lock motor is replaced, then restore the door lock block, close the shell of the lock block, install the latch, buckle, screw, etc. back, and treat the cut rivet port with hot melt adhesive to make the lock block shell bite very tightly, conduct a test before loading, simulate the opening and closing operation of the door, confirm that it is correct, you can install the door lock to the door, and then install the door interior guard.

When buying a door lock, you must buy an adapted motor, otherwise it cannot be used normally. Replace the internal small parts, solve the door lock repair problem at a low price, and directly save the price of replacing the door lock assembly. The same motor in this article can be ordered from this link.

4、What tool do you need to open the door lock?

You can use utility knives, glue guns, vises, screwdrivers and hammers, depending on the actual operation of the individual to choose the appropriate tool.

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