Power windows with no bcm - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Thenwhat85 · 06-07-2019, 07:58 AM

Hello i recently joined the forum to ask this question. Ive search all over the internet and can not get/find a answer. I have a 2010 that has been gutted of all wiring. Its a drag car only and has a bbc and pg in it. All the original glass is in the car and i want to get the drivers side window to work. I have the factory window regulator, door panel and switch. But i cant figure out how to wire this thing without the signal wire from the bcm. I fried the window switch already jumping wires around to try and trick the system.(new one on the the way) and i dont want to go about this on a trial and error method(could get expensive replacing parts) has anyone powered their windows without the module? Thanks for any help and sorry for the drag on question

2SSRS@Gen5diy · 06-11-2019, 10:26 AM

It needs a BCM to work, or you have to mimic it.

2SSRS@Gen5diy · 06-11-2019, 11:00 AM

Here is how it works, the switch has no way of powering the window motor, its a resister with two value settings, one for up and one for down, it ties in to the BCM on a lanbus, so when you push down that value is transmitted to the BCM, then the BCM tells a relay to put power on the wire that runs to the motor, if you push up the same happens but polarity is switched.

Thenwhat85 · 06-13-2019, 06:45 AM

Okay thankyou. So it seems trying to mimic is damn near impossible. Can i bypass it. Take the motor apart and hard wire it so to say. Eliminated the circuitry in the motor. Get a different switch or modify it to send power to the motor f ok r up and down function

2SSRS@Gen5diy · 06-13-2019, 03:11 PM

Quote:

Originally Posted by Thenwhat85

Okay thankyou. So it seems trying to mimic is damn near impossible. Can i bypass it. Take the motor apart and hard wire it so to say. Eliminated the circuitry in the motor. Get a different switch or modify it to send power to the motor f ok r up and down function

That i do not know, do you have the COPO book that info may be there.

Thenwhat85 · 06-14-2019, 05:28 PM

No but i hear the copos keep the bcm. Dont know if thats true or not.

LevonH · 06-14-2019, 07:56 PM

Scroll down and there is a left and right harness. You may need more but they have a contact number

https://www.copopartsdirect.com/shop/

COPO Direct.

Thenwhat85 · 06-16-2019, 08:28 AM

Thanks but i already have the factory harness and window regulator. I will give then a call though

MarkB71 · 01-15-2020, 08:36 PM

I'm not sure it's the solution you're looking for, but I made mine work by bypassing the window module in the motor, I hooked it up "old school" and set up a remote and relay system so I can bump them down to open and close the door.

lemontwist · 01-15-2020, 08:53 PM

Quote:

Originally Posted by MarkB71

I'm not sure it's the solution you're looking for, but I made mine work by bypassing the window module in the motor, I hooked it up "old school" and set up a remote and relay system so I can bump them down to open and close the door.

what he said do a old school switch with a relay it's not really that hard
this is what i used on my 96 worked like a champ it will make the change easier.
https://www.amazon.com/gp/offer-list...&condition=all

06-07-2019, 07:58 AM	#1
Thenwhat85 Drives: Chevy Camaro Join Date: Jun 2019 Location: Ohio Posts: 4	Power windows with no bcm Hello i recently joined the forum to ask this question. Ive search all over the internet and can not get/find a answer. I have a 2010 that has been gutted of all wiring. Its a drag car only and has a bbc and pg in it. All the original glass is in the car and i want to get the drivers side window to work. I have the factory window regulator, door panel and switch. But i cant figure out how to wire this thing without the signal wire from the bcm. I fried the window switch already jumping wires around to try and trick the system.(new one on the the way) and i dont want to go about this on a trial and error method(could get expensive replacing parts) has anyone powered their windows without the module? Thanks for any help and sorry for the drag on question

06-14-2019, 07:56 PM	#7
LevonH Chevy Enthusiast. Drives: 2015 Camaro ZL1 Summit White Join Date: Jan 2019 Location: Calgary Area, Alberta Posts: 221	Scroll down and there is a left and right harness. You may need more but they have a contact number https://www.copopartsdirect.com/shop/ COPO Direct. __________________ Levon H. Bone Stock

06-11-2019, 10:26 AM	#2
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,719 View My Garage	It needs a BCM to work, or you have to mimic it.

06-11-2019, 11:00 AM	#3
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,719 View My Garage	Here is how it works, the switch has no way of powering the window motor, its a resister with two value settings, one for up and one for down, it ties in to the BCM on a lanbus, so when you push down that value is transmitted to the BCM, then the BCM tells a relay to put power on the wire that runs to the motor, if you push up the same happens but polarity is switched.

06-13-2019, 06:45 AM	#4
Thenwhat85 Drives: Chevy Camaro Join Date: Jun 2019 Location: Ohio Posts: 4	Okay thankyou. So it seems trying to mimic is damn near impossible. Can i bypass it. Take the motor apart and hard wire it so to say. Eliminated the circuitry in the motor. Get a different switch or modify it to send power to the motor f ok r up and down function

06-14-2019, 05:28 PM	#6
Thenwhat85 Drives: Chevy Camaro Join Date: Jun 2019 Location: Ohio Posts: 4	No but i hear the copos keep the bcm. Dont know if thats true or not.

06-16-2019, 08:28 AM	#8
Thenwhat85 Drives: Chevy Camaro Join Date: Jun 2019 Location: Ohio Posts: 4	Thanks but i already have the factory harness and window regulator. I will give then a call though

01-15-2020, 08:36 PM	#9
MarkB71 Drives: 2012 Camaro Join Date: Jan 2020 Location: Illinois Posts: 1	I'm not sure it's the solution you're looking for, but I made mine work by bypassing the window module in the motor, I hooked it up "old school" and set up a remote and relay system so I can bump them down to open and close the door.