How To Install A Window Motor

Power window regulator, window motor: problems, testing, replacement

Updated: August fourteen, 2022

Ford cable-type window regulator

The machinery that moves the window upwards and downwardly is called the window regulator. In some cars, the window motor comes with the window regulator as 1 unit (see the photo); in others, the window motor can be replaced separately.

There are two basic types of window regulators: the cable blazon (the top image) and the gear-drive blazon (the paradigm below).
There is ane window regulator in each door. A window regulator doesn't need whatsoever maintenance or adjustment. If it fails, the failed part or the whole unit must be replaced.

Window regulator issues

A cleaved window regulator cable tin cause the window to jam or fall down inside the door. See this example, where the cable broke and the power window stopped working.

Worn out cable guides or a frayed window regulator cablevision can cause abnormal noises when the window is moving. For the aforementioned reason, the window may not get up or down all the way.

In cold temperatures, the window may freeze in closed position. When the window switch is operated downwardly, the window can dissever from the window regulator.

Toyota gear-bulldoze-type window regulator

If this happens, in some cars, the window can be re-secured without replacing parts, in others the window regulator might need to be replaced.

A car is considered unsafe when power windows don't function properly. Several automobile manufacturers issued recalls to accost concerns with a ability window mechanism. You can check if a car has any outstanding recalls at the NHTSA website.

Symptoms of a bad window regulator:

- the window falls downward within the door
- abnormal noise when a window is moving upwards or downwards
- the window rises tiresome, jams or doesn't close fully
- the window slides up or downwardly crooked
- when the window switch is pressed, the window motor runs but the window doesn't move.

Ability window troubleshooting:

As working ability windows are of import for your prophylactic, we recommend visiting a dealer or a reputable shop if y'all have a problem. Dealers also accept a scan tool that tin test the window switch, motor and other electric components. If you desire to know more than, hither's a few tips on how mechanics troubleshoot power window problems, follow the links:
What does describe the problem all-time when the window switch is operated:

Window motor runs merely the window jams or doesn't move at all
Power window goes downwards, only non upward, the motor is not running when the switch is in "UP" position.
The window goes downwardly OK, but is tiresome going up
The window goes up but then backs down
When the window switch is pressed, nothing happens

Window motor runs merely the window jams or doesn't movement:
In this instance, nosotros know that the window switch, the wiring and the window motor piece of work. That ways the problem is with the window regulator. We would still have to take the door comprehend off and cheque if the window motor gear is not damaged and if the drinking glass is notwithstanding connected to the regulator.

Power window goes downward, but not up, the motor is not running when the switch is in "UP" position:
We know the motor works. The main switch on the driver's door is common to become bad. We tin endeavor wiggling the switch in "UP" position and if it makes the window motor run, then we know the switch is bad. If it doesn't, then nosotros would have to follow the electric diagram and cheque the power window circuit.

The window goes down OK, but is slow going up:
We would have to check the window run channels and the window regulator mechanism. Sometimes window run channels wearable out or shift out of place. The window run aqueduct is non expensive and is not very difficult to supercede. Oft lubricating window channels with a special silicone lubricant helps. The sliding parts of the window regulator may too need to be greased. If lubrication doesn't help, the window regulator may demand to be replaced.

The window goes upwards but then backs down:
In many cars the power window have the anti-compression part that reverses the window from going upwards when an object is pinched past the window. Sometimes, after the window motor or regulator has been replaced or the ability has been disconnected, the initial power window settings must exist relearned for anti-pinch role to work properly. The re-larn procedure is dissimilar for different cars. Try googling 'power window re-learn process Make Model Year', there are plenty of YouTube videos how to do it.

Nil happens when the window switch is pressed:
If the window motor doesn't operate at all, the outset thing to check is the fuses. Meet: how to check fuses. If the fuses are OK, the next pace is to check the voltage at the motor and test the motor itself. Information technology's not uncommon for a window motor to go bad. Encounter how to test a window motor below.

Window regulator replacement

Replacing the window regulator is not very expensive ($50-140 labor, $40-$180 role) and aftermarket parts are often available. Some dealers have parts in stock. Equally a DIY project, the window regulator replacement rates from 5 to 7 on the calibration from 1 to ten, with 10 existence the most hard. You lot might need to enlist one of your friends to help, as the drinking glass needs to exist held in the top position while the window regulator is replaced.

Information technology'south also very common for door cover clips to intermission whenever the door cover (panel) is removed. You may desire to guild a couple of new clips. Typically, at that place are 8-10 clips holding the door encompass.

Window regulator Auto-Upwardly part reset

In many cars, the ability window must be reset after the window regulator or window motor is replaced or the Automobile-Upwards office will non work. You can google the specific reset procedure or check the owner'south manual for your machine. For example, the Quick Tips brochure for the 2007 Mazda 6 describes the procedure:
With the ignition switch "ON", press switch and fully open up the power window. Side by side, pull up switch to fully close power window and proceed holding switch for virtually 2 seconds later window is fully closed. Echo the aforementioned steps for the front end passenger window from the passenger door switch.

How the window motor is tested

In this motorcar, the window motor in the right front door stopped working. Pressing the window switch up or downward does zero, however all other windows piece of work. We checked the service manual that says to remove the interior door embrace and check for bombardment voltage at the window motor connector.

The manual says to operate the window switch and check for the voltage at the connector. When the window switch is pressed "Downwardly" the multimeter measures 12 Volts, so we know there is power at the window motor switch.

When the window switch is pressed "Up" the multimeter shows -12 Volts, because the polarity changes when the window switch is moved from "Down" to "Up" position.

Next, the service manual asks: does the motor operate past connecting the battery voltage directly to the motor? We did it and nothing happens, the window motor is bad and must be replaced.

The window motor comes together with the window regulator as an associates for this car. The new office was less than $100 and it took around one hour to replace. This mail has links to sources offer the service manual online.

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Source: https://www.samarins.com/glossary/window-regulator.html

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