Need BCM pinout and wire harness info

David Diagnostician Georgia Posted   Latest   Edited  
Resolved
Electrical
2020 Chevrolet Equinox L 1.5L (V LYX) 6-spd (6T40) — 3GNAXKEV9LS556313
Roof Crushed
Water Intrusion
Sevaral Modules Off Line

This vehicle was new and was crushed from the top. The windshield busted out, and strong evidence of severe water intrusion.

My father-in-law can fix the body damage and has tasked me with checking out all the modules to find out how many need to be replaced, and that the wiring harnesses will not damage new modules that are attached from shorts to battery or otherwise.

The airbag DTC's were caused by my father-in-law disconnecting them so I do not accidentally blow them out during troubleshooting. it is amazing that not 1 bag blew out from this roof impact but I suppose the car is smart enough to know that it was not being driven at the time.

I purchased the trial Repair Data from Autel, but it does not seem to include electrical details. I have also purchased service manuals off of Ebay that sometimes do not include this type of data for all the modules. Can anyone recommend a good source to get all the electrical data for this vehicle that would have enough information to do this kind of troubleshooting that is specific to this vehicle? I am a low volume diagnostician and prefer to pay for specific data to the vehicles I work on as the cost of the subscriptions is not suitable for my current volume of this type of work. 

Much appreciated :)

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David Diagnostician
New York
David
 

You could try Alldata DIY. You can buy the information for a single vehicle. I think it costs around $25 and you get it for 1 year.

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David Diagnostician
Georgia
David
 

I did a trial Alldata that was FANTASTIC for a Mercedes benz I was working on, It was a trial of their best package so it had all the bells and whistles. But then I tried a DIY subscription on a 2014 Ford Explorer that I could not even navigate to a simple PCM to engine compartment devices. They did not even have a number I could call for support. They have since ceased offering the DIY and I…

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William Owner/Technician
Kentucky
William
 

Purchase a techline connect subscription from ac delco for your vin, it comes with service info as well as module programming. Navigating gm service info requires a little practice but it will be accurate and if you have to program any modules you will have your subscription.

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William Technician
West Virginia
William Resolution
 

acdelcotds​.​com/subscriptions. 3 days $20.00

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Geoff Diagnostician
Hawaii
Geoff
 

If you are "low volume" and working on a 2020, you need to buy the OE subscription, and itemize it in on the bill. William, above, posted the link.

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Eric Owner/Technician
Wisconsin
Eric
 

Be aware, if this vehicle was totaled by the insurance company you will have trouble programing new modules. GM doesn't support totaled vehicles and makes the programming files unavailable. As far as finding the information you will need to repair this car, I agree with the Williams, look at ACDelco Technical Delivery System. Buy a short subscription and print out all the information you need…

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David Diagnostician
Georgia
David
 

I did a salvage 2019 GMC Terrain and replaced the liftgate module which required reprogramming. Programmed without issue. Also programmed the video module as well from a TSB. This was about 15 months ago, did they just impliment no program support for salvage title recently? We have a bunch of body parts on the way and I would hate to find out we cannot get it straight electrically.

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Eric Owner/Technician
Wisconsin
Eric
 

Right now access to the programming files seems hit or miss. I know for sure if you have trouble with a branded GM vehicle you won't get any help from the Support Desk. There are several posts on iATN​.​net about it, since I no longer sponsor there I can't search any more, but I know I read about it there. There are a few discussions here on Diag​.​net as…

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Enrique Diagnostician
California
Enrique
 

I agree with David, Eric: can you elaborate on your information regarding totaled vehicles?. this has huge repercussions for our industry.

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Eric Owner/Technician
Wisconsin
Eric
 

Right now access to the programming files seems hit or miss. I know for sure if you have trouble with a branded GM vehicle you won't get any help from the Support Desk. There are several posts on iATN​.​net about it, since I no longer sponsor there I can't search any more, but I know I read about it there. There are a few discussions here on Diag​.​net as…

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David Business Development Manager
Ohio
David
   

There was a thread on here a few months ago, if I recall correctly, where a person purchased an almost new Corvette with a salvage title and there were issues getting a certain module programmed due to the car being flagged as a salvage. Maybe it is only certain modules, or I could be completely incorrect about that earlier thread. – Dave

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Scott Owner
California
Scott
 

Hi Eric, It's been my experience that the calibration files are there and not taken out. It's been a few years since I've programmed a salvaged vehicle, so this possibly has changed. Where you definitely will run into an issue is if you have to enter a Security Code - gm-techlink​.​com/?p=7465 I've only had to enter that one time and the vehicle didn't have a salvaged title, or a…

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Eric Owner/Technician
Wisconsin
Eric
 

Right now access to the programming files seems hit or miss. I know for sure if you have trouble with a branded GM vehicle you won't get any help from the Support Desk. There are several posts on iATN​.​net about it, since I no longer sponsor there I can't search any more, but I know I read about it there. There are a few discussions here on Diag​.​net as…

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Scott Owner
California
Scott
 

Hi Eric, I forgot about the - if you need to call part. With the new Techline Connect this seems to be a regular occurrence.

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Dee Technician
Tennessee
Dee
   

2020 is pretty new…..it will be difficult to find info outside of GM. You can get access to the same service info the GM dealers use by subscription. A 3 day unlimited subscription is only $20. acdelcotds​.​com/subscriptions You basically get all GM brands and vehicles info for all years back to 1998. All systems. It is not limited to just your vehicle. Up to date TSBs and bulletins…

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Malcolm Owner/Technician
Texas
Malcolm
 

The manufacturer subscription for GMs service information is fairly cheap and not limited to vin as far as I know. At most you might need to download TLC but that's because I haven't used it since SPS2 became mandated. That's the guaranteed way to get info. And it's fairly simple to use GMs SI.

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David Diagnostician
Georgia
David Update
   

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