Improve the Speed of the Fiero Electric Windows Using a 451M Micro Door Lock Relay Module

This is another how-to video on how to improve the speed of the venerable Pontiac Fiero electric window by bypassing the window switch and applying power directly to to window motors. Used in conjunction with other known methods of improving the speed of the windows (i.e., cleaning and re-greasing the window tracks, window switches, etc.), you'll have your slow windows operating like new in no time.

[@Mrlogreco]

We have an 87 gt with slow windows; we might try this thank you for posting

[@Kaneguy]

Good luck! Let me know if it helps!

[@1985FieroGT]

I just installed these in my Fiero, and the way you have it wired up does not work as it is supposed to. Also if it would work as it was supposed to it would be a safety hazard as all the power for the window motors would be drawn from the thin unfused Red wire. There are 2 relays in each module, each relay has 3 wires, +12v, ground, and output. The relays are switched by power applied to the thin wires, so that one relay is connecting output to ground and one is connecting output to +12v, then the output from each relay is sent to the motor, one positive, one negative, that is how it can be switched in two directions. The way the video has it wired up, the switch output is wired to the relay ground, and the motor input is wired to relay output, as the relays are switched to ground when it is unpowered, the window switch is still directly controlling the motors, meaning the only difference between original and this installation is an extra few feet of wire. This is how it should be done.
Thick wires; purple/black to +12v, white/black and brown/black to ground, blue/black and green/black to window motor.
Thin wires; red to +12v, green and blue to window switch outputs.
With it wired this way, each relay has a fused power and ground source to pass on to the window motor, and the relay is triggered via the thin wires by the original window switch. When one thin wire receives power, it turns on one relay, changing its output from ground to +12v while the second unpowered relay is resting at ground, when the other thin wire is powered, the second relay switches from ground to +12v, while the first relay is resting at ground, that way the two output wires reverse polarity, to lower and raise the window.
Once installed if window goes down when you press up, and up when pressing down, simply reverse the thin green and blue wires on the window switch.

[@marks4374]

So what was the result? Did the windows speed up significantly?

[@550sized]

No demonstration on how the windows work?

[@Kaneguy]

Yeah, sorry. I didn't include that in the video.

[@marks4374]

Kaneguy boo!

[@arthurspontiacfieroblog]

@@Kaneguy follow up video?

[@chrishorton195]

So I was going to do this but you never show exactly what wires go to what wires!! Any input you can give me???

[@Kaneguy]

I show the actual window wires used and what wires from the relay to connect to beginning at the 13 min mark