Power Windows, 2005 Chevrolet Cavalier

Hello,

I have a 2005 Chevy Cavalier (Sedan). My vehicle did not have power windows installed when I bought the vehicle, so I installed aftermarket power windows myself. I pigtailed it with an existing fuse and it functions properly. However, I noticed that my fuse panel has a slot for the power window and it is blank. Is that a slot for a fuse, relay, or circuit breaker? (It's not the normal shape and size of the other fuses, so it's making me wonder.)

The reason why I'm asking is because if it is an available spot for me to wire up the aftermarket power windows, then I would like to do so instead of tapping in to another fuse.

Also, would that blank slot be wired to the BCM, or towards the vehicle battery instead? If it is supposed to be wired to the BCM, where would I find a wiring diagram of the BCM for my vehicle?

Hopefully this explains what I'm looking for. Thanks for taking the time to read this!

The Power Window slot in the fuse panel is for a 25A auto-resetting circuit breaker. One side connects to power when the ignition is "ON" and the other to the power window switches and window motor controllers. There is no connection to the BCM I am aware of.

If you want to use the empty power lead to power your circuit, I would verify with a voltmeter that you have the correct side of the circuit (12V when the ignition key is in the "on" position). Then I would find the wire in the back of the fuse box connected to that terminal, then strip and solder the after market power lead to it. Be sure to properly fuse your circuit, and insulate the connection with high quality electrical tape (such as Scotch 33+).

I hope this helps.

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Lectric Guy

Okay, got it.

Where can I buy this circuit breaker?

UPDATE TO PREVIOUS REPLY:

In this link, is this the circuit breaker I'm looking for that will fit the slot on my vehicle?

https://www.oreillyauto.com/detail/b/littelfuse-4149/accessories-16449/accessories---exterior-16767/exterior-lighting-16612/bulb-flasher-fuse-16457/fuses-16615/circuit-breaker-11443/82402998477b/littelfuse-25-amp-circuit-breaker/mib25/4414364/2005/chevrolet/cavalier?q=circuit+breaker&pos=0#applications

UPDATE:
This seems to be the correct circuit breaker. Installation and wiring was successful. Thank you for your help!

I have a 2005 Chevy Cavalier Sedan. The vehicle came with manual windows, so I converted the windows to power windows using an aftermarket power window kit. Now, I would instead like to remove the aftermarket set and just replace the window regulators with new regulators including the motor. My rear windows only roll down half way, and the front windows roll down all the way.

Are the rear window regulators made differently compared to the front since they only roll down halfway? If so, how can I make sure the regulator I purchase is the correct type to replace the existing regulator?

I have attempted to contact the Chevy dealership, and they have not reached back to me. Online websites only offer the front two window regulators, and if they offer the rear, it is either the left or the right rear window regulator. Plus, they don't look different, so I'm just wondering to make sure. I don't want to buy the regulators if they will not be the correct parts. Also, there are so many different brands; which one should I use?

Any useful information is helpful, thank you!

rcuestas28 wrote:

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Online websites only offer the front two window regulators, and if they offer the rear, it is either the left or the right rear window regulator. Plus, they don't look different, so I'm just wondering to make sure.

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Window Regulators are vehicle and (mostly) door specific. Be sure to get the correct one for your model and particular door application (Front Driver, Front Passenger, Rear Driver, Rear Passenger). Front and Rear may look similar from driver to passenger side but they are mirror images of the other.

So for installing power windows on four doors, you would need two relays per door, correct?
(One to roll up, then the second to roll down?)

Potentially you could with some very basic 3-wire switches, but typically no relays are used or needed when using the appropriate switches. What are you trying to do?

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the12volt • Support the12volt.com

My vehicle originally had manual windows and I installed an aftermarket power window kit to convert them to power windows. The only issue is that the windows rolled up slow, but they still worked as power windows. So the goal was met, just not as great as I thought it would be. I wired them up to the power window cable on the fuse box that my car already had, too.

I then found out about the actual window regulators that the vehicle would have if it originally came with power windows. So I bought the window regulators with the motors and replaced the aftermarket motors. All four windows roll up way faster, but the speed for the back two are slower than the two in the front. It is still wired to the power window cable at the fuse box.

I believe there is maybe a voltage drop? That is why I am thinking about installing relays. Maybe that would solve my problem? Some diagrams that I've seen show two relays for one switch. (One relay to roll up the window, and a separate relay to roll down the window.)

Assuming there are no mechanical issues with the rear windows and you used the correct gauge wire, the speed of the rear windows is probably normal.

You could use a relay energized by an ignition or accessory source with another 20 amp self resetting circuit breaker going directly to the battery instead of the factory location in the fuse box, but I would test it first before running any wire inside the vehicle.

You could also use heavier gauge wire throughout if you are currently using wire that is too small to use from the start such as 18 gauge or smaller. What size wire are you using?

Yes, you could add two relays per window motor with heavy gauge wire for 12V+ and ground, but again I would test one window for any improvement before running a single wire inside the vehicle.

And finally, before I did anything, unless they are painfully slow, I would leave well enough alone ;).

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the12volt • Support the12volt.com