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My 09 Suburban Needs A Body Control Module #5132748
06/12/19 10:36 PM
06/12/19 10:36 PM
Joined: Dec 2006
Posts: 1,924
NY, NY
NYEngineer Offline OP
NYEngineer  Offline OP

Joined: Dec 2006
Posts: 1,924
NY, NY
Great... Huge single point of failure. My brother knows a guy that comes to you and programs them but he doesn't sell them. Any suggestions? Dealer?

Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5132764
06/12/19 10:52 PM
06/12/19 10:52 PM
Joined: Dec 2013
Posts: 3,381
Fort Worth, Texas
clinebarger Offline
clinebarger  Offline

Joined: Dec 2013
Posts: 3,381
Fort Worth, Texas
Dealer.....i would have it flashed/configured by the same dealer as well. GM will not warrant one configured by a 3rd party.

In general.....Most BCM failures are from Cold/Cracked solder joints.


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/U341E
2000 Toyota Avalon 1MZ-FE/A541E
Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5132891
06/13/19 06:31 AM
06/13/19 06:31 AM
Joined: Jul 2018
Posts: 145
illinois, usa
LazyDog Offline
LazyDog  Offline

Joined: Jul 2018
Posts: 145
illinois, usa
You can just pull it out and sent to have the solder joints fixed. No need to reprogram since it is the original. banana

Re: My 09 Suburban Needs A Body Control Module [Re: LazyDog] #5132898
06/13/19 06:40 AM
06/13/19 06:40 AM
Joined: Oct 2010
Posts: 9,841
Virginia Beach
Astro14 Offline
Astro14  Offline

Joined: Oct 2010
Posts: 9,841
Virginia Beach
Originally Posted by LazyDog
You can just pull it out and sent to have the solder joints fixed. No need to reprogram since it is the original. banana


Yep.

I’ve done this with many Volvo modules. Worked great. I used these guys: https://xemodex.com/us/

They fix the module (solder joints, bulbs, power supply, transistors, whatever) and ship it back. They have express shipping. They are an example of a module repair company. Don’t know if they’ve got the service for your exact module, but...

I’m willing to bet that there is a whole trade industry fixing GM modules. Google. Surf the Chevy forums.

Barring that, get the dealer to do it. A new (or used) module that isn’t original to your car will need to be reprogrammed. For that, you’ll want full - up dealer software and a warranty.

Last edited by Astro14; 06/13/19 06:43 AM.

32 Packard 15W40
01 Volvo V70 T5 0W30 AMSOIL SS
02 Volvo V70 T5 0W30 Edge
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5132932
06/13/19 07:27 AM
06/13/19 07:27 AM
Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline

Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
I've pulled them and resoldered the joints. It's not hard if you have enough skill to get it out.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: My 09 Suburban Needs A Body Control Module [Re: DoubleWasp] #5132935
06/13/19 07:36 AM
06/13/19 07:36 AM
Joined: Oct 2010
Posts: 9,841
Virginia Beach
Astro14 Offline
Astro14  Offline

Joined: Oct 2010
Posts: 9,841
Virginia Beach
I’ve got the skill to get it out, but I’m no good at soldering...

And if the problem is more complex than soldering (e.g. transistor or power supply failure) then I’m way over my head.

This is something that I would farm out, personally...


32 Packard 15W40
01 Volvo V70 T5 0W30 AMSOIL SS
02 Volvo V70 T5 0W30 Edge
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5133029
06/13/19 09:29 AM
06/13/19 09:29 AM
Joined: Feb 2006
Posts: 2,763
Cincinnati
Chris Meutsch Offline
Chris Meutsch  Offline

Joined: Feb 2006
Posts: 2,763
Cincinnati


2005 Honda CR-V EX, 273k
Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5133030
06/13/19 09:30 AM
06/13/19 09:30 AM
Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline

Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
You need none at all. You're not even soldering. You're just reflowing. Touch the tip to the old solder until it turns fluid. Lift tip off. Repeat for other solder points. Done.

I did my last one sitting on a box in my garage while falling asleep.

When my friend had the same problem with his other truck, his 10 year old son duplicated my work. If you can use a razor and write your name with a pen, you're good to go.

Don't worry about what might be wrong. It's a 45 minute job. If it doesn't work, then toss that thing off. But that's just my perspective. I haven't encountered one that was anything more than the solder yet.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5133046
06/13/19 09:48 AM
06/13/19 09:48 AM
Joined: Sep 2004
Posts: 8,318
Marshfield , MA
andyd Online content
andyd  Online Content

Joined: Sep 2004
Posts: 8,318
Marshfield , MA
The power transistor on the 535i ECU would break solder joints. I watched Peter Florrance revive 2 out of 3 with a soldering iron. The 3rd smelled fried. At the time a new ECU was 1500$. I described the operation to a noob on the board and he fixed his.. You can see a broken solder joint. There is a black ring just below the top of the blob.It is carbon from arcing. grin2


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5133115
06/13/19 11:33 AM
06/13/19 11:33 AM
Joined: Jun 2002
Posts: 13,142
The Motor City
Kestas Offline
Global Moderator
Kestas  Offline
Global Moderator

Joined: Jun 2002
Posts: 13,142
The Motor City
I have the benefit of a stereomicroscope available to me. Instead of reflowing dozens of good solder joints, I'll inspect the unit and find the broken and iffy solder joints.

Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5133347
06/13/19 04:15 PM
06/13/19 04:15 PM
Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline

Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
The GM BCM doesn't have many. Might have been ten.

I always reflow all of them. If I have the unit open and my iron in front of me, do I really want to put it back together with the rest of the time bombs still ticking?

If one poorly done joint did the unit in, what reasonable assumption can one make about the rest of the joints?


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5133635
06/13/19 09:30 PM
06/13/19 09:30 PM
Joined: Dec 2006
Posts: 1,924
NY, NY
NYEngineer Offline OP
NYEngineer  Offline OP

Joined: Dec 2006
Posts: 1,924
NY, NY
Awesome. I'll pop it out tomorrow and have a look at it. This place is the best.

Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5133954
06/14/19 10:01 AM
06/14/19 10:01 AM
Joined: Feb 2007
Posts: 3,963
Southeast
meep Offline
meep  Offline

Joined: Feb 2007
Posts: 3,963
Southeast
@ NYE - if you don't have an iron, pick up a 30 watt iron and some solder. Get the iron hot and moisten the tip with solder. if it doesn't adhere, scuff it lightly and try again. Keep a moist sponge or rag nearby to clean the tip.

As D'Wasp said, just reflow - but having your own spool will help if the tip gets dry, tacky, or you find a joint that is too dry.


@ Astro14 - I've read your posts. You can do this. Pick up an iron and some solder and practice on scrap 14 to 24 gauge wire and you'll get the feel for it.


2018 F150
2015 crv (wifey!)
Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5134023
06/14/19 12:29 PM
06/14/19 12:29 PM
Joined: Dec 2006
Posts: 1,924
NY, NY
NYEngineer Offline OP
NYEngineer  Offline OP

Joined: Dec 2006
Posts: 1,924
NY, NY
Meep... Thanks. I've got plenty of experience making emergency field repairs to printed circuit boards. I'm all set. I've got the perfect iron for this job. I'm excited to do it. I may try and do it as soon as I get home from work today.

I'll post back and let everyone know how it goes.

Re: My 09 Suburban Needs A Body Control Module [Re: NYEngineer] #5134287
06/14/19 06:04 PM
06/14/19 06:04 PM
Joined: Dec 2006
Posts: 1,924
NY, NY
NYEngineer Offline OP
NYEngineer  Offline OP

Joined: Dec 2006
Posts: 1,924
NY, NY
Ok... I am a peepee. I got the BCM out of my truck pretty easily and got it open slightly less easily. I inspected it and realized I needed a magnifying glass so I went and got one at Ace. Still found NOTHING. I reassembled it and put it back in. Everything works the same.
I'm going to order a new one on Monday.

I just fixed the board in a VFD last week at work. After watching a few youtube videos I figured I had this in the bag.

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