Drag Racing Tech
Sponsored by:
Sponsored by:

deleting BCM?

Thread Tools
 
Search this Thread
 
Old Aug 12, 2010 | 04:53 PM
  #1  
SS4Luck's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Feb 2006
Posts: 2,215
Likes: 2
From: Sterling Heights, MI
Default deleting BCM?

okay so ive been searching and searchign and got no answers in the electronics section so i figured id ask here.

My BCM is shot and rather than fix it im just going to take it out. I dont care about the interior lights and i dont have a key fob anyways. I would like to keep my power windows and i heard all you have to do is give one of the brown wires a 12V source or something and they will still work.


anyone have experience or know where there is a write up for any of this?

Last edited by SS4Luck; Aug 13, 2010 at 02:26 AM.
Reply
Old Aug 13, 2010 | 05:36 PM
  #2  
SUCK MY SS's Avatar
TECH Regular
iTrader: (14)
 
Joined: Apr 2006
Posts: 485
Likes: 0
From: 626 to the 818
Default

as far as i know, all thats needed is to ground the yel/blk wire for the starter relay.
Reply
Old Aug 13, 2010 | 06:23 PM
  #3  
SS4Luck's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Feb 2006
Posts: 2,215
Likes: 2
From: Sterling Heights, MI
Default

Originally Posted by SUCK MY SS
as far as i know, all thats needed is to ground the yel/blk wire for the starter relay.

i know that there is a way to delete the BMC and keep the power windows if you supply a wire with power.

thanks for the starter relay
Reply
Old Aug 13, 2010 | 06:34 PM
  #4  
Magnet's Avatar
11 Second Club
20 Year Member
iTrader: (36)
 
Joined: Sep 2004
Posts: 4,085
Likes: 77
From: Fort Myers Florida
Default

I beleive Nemss1 figured this out... let me see if I can find it


EDIT: this is what I found so far

https://ls1tech.com/forums/drag-raci...nouts-bcm.html

Last edited by Magnet; Aug 13, 2010 at 06:41 PM.
Reply
Old Aug 13, 2010 | 06:45 PM
  #5  
SS4Luck's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Feb 2006
Posts: 2,215
Likes: 2
From: Sterling Heights, MI
Default

yeah i dont care about anything but the windows, the blinkers, interior lights and door looks were shady at best in my car if they worked at all
Reply
Old Aug 14, 2010 | 09:52 PM
  #6  
studderin's Avatar
TECH Senior Member
iTrader: (28)
 
Joined: Nov 2005
Posts: 5,556
Likes: 6
From: Rochester, NY
Default

check yellowbullet for the windows. I think you need 2 relays per window on one dual switch for it to be correct. But I know I read about guys doing it with one relay, alot simpler. And just more " I just did it and it works for the last 3 year", to the ele. guys saying you "need
" the 2 relays for the way the stock motor need to be controlled
Reply
Old Aug 14, 2010 | 11:18 PM
  #7  
SScam68's Avatar
11 Second Club
iTrader: (20)
 
Joined: Sep 2002
Posts: 2,684
Likes: 3
From: Albuquerque NM - The Land of 8000ft DA
Default

Originally Posted by studderin
check yellowbullet for the windows. I think you need 2 relays per window on one dual switch for it to be correct. But I know I read about guys doing it with one relay, alot simpler. And just more " I just did it and it works for the last 3 year", to the ele. guys saying you "need
" the 2 relays for the way the stock motor need to be controlled
incorrect

the windows have their own controller box. You just need to find the brown wire and provide a 12V source.

The ground is on the post on the lower part of the dash, drivers side. Just above the hood release.

I've posted detailed pics on here in several threads.
Reply
Old Aug 14, 2010 | 11:49 PM
  #8  
SS4Luck's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Feb 2006
Posts: 2,215
Likes: 2
From: Sterling Heights, MI
Default

Originally Posted by SScam68
incorrect

the windows have their own controller box. You just need to find the brown wire and provide a 12V source.

The ground is on the post on the lower part of the dash, drivers side. Just above the hood release.

I've posted detailed pics on here in several threads.

i was about 200% sure thats all it took for the windows.


Do you need to disable the VATS before you take out the BCM? if you dont the car wont start/run correct?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Aug 15, 2010 | 08:30 PM
  #9  
Taubr Unit's Avatar
TECH Veteran
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (32)
 
Joined: Nov 2005
Posts: 4,155
Likes: 31
From: Chicago
Default

Subscribing. Doing this myself, I wanna hardwire everything. The headlights n brake lights arnt part of the BCM are they?
Reply
Old Aug 15, 2010 | 11:06 PM
  #10  
SS4Luck's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Feb 2006
Posts: 2,215
Likes: 2
From: Sterling Heights, MI
Default

They aren't as far as I can tell with the reading I've done
Reply
Old Aug 16, 2010 | 01:05 PM
  #11  
SScam68's Avatar
11 Second Club
iTrader: (20)
 
Joined: Sep 2002
Posts: 2,684
Likes: 3
From: Albuquerque NM - The Land of 8000ft DA
Default

Originally Posted by SS4Luck
i was about 200% sure thats all it took for the windows.


Do you need to disable the VATS before you take out the BCM? if you dont the car wont start/run correct?
Yes.

controller box and associated wiring





This is one of the few perks I kept, because cooking in a car on a hot summer night ******* SUCKS!!
Reply
Old Aug 16, 2010 | 01:06 PM
  #12  
mike171562's Avatar
TECH Enthusiast
iTrader: (4)
 
Joined: Feb 2010
Posts: 506
Likes: 1
From: Spring
Default

it would be easier just to solder a couple of points on it, took my about an hour to get it out and do the solder fix.
Reply
Old Aug 16, 2010 | 03:02 PM
  #13  
SS4Luck's Avatar
Thread Starter
11 Second Club
iTrader: (10)
 
Joined: Feb 2006
Posts: 2,215
Likes: 2
From: Sterling Heights, MI
Default

Originally Posted by mike171562
it would be easier just to solder a couple of points on it, took my about an hour to get it out and do the solder fix.

i currently dont have the dash in the car with the BCM and interior wiring harness laying on the floor. I doubt it will take me much more than 30 minutes after i tune the VATS out
Reply




All times are GMT -5. The time now is 03:41 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE