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Hello everyone. I found this forum while searching for a solution to a problem. I am in the process of modifying a Yukon XL for wheelchair access. There are a couple of companies out there than provide a great solution, but for only one wheelchair user. My wife and I both use power wheelchairs. I am a mechanical engineer with automotive design experience, so we decided to move forward with a local fabricator to build a one-off. Everything is going smoothly, except that we have an airbag light on (error in the SRS system) because we have removed the two front seats. As you know, the seats contain airbags, occupancy sensors, seat belt sensors, and pre-tensioners. The absence of the components in the seats is causing the system to shut down. I want the remaining airbags to work should we ever need them.
Basically, we have two options:
1. Fool the controller into thinking the components are there by using bypass module(s)
2. Reprogram the controller to not shut down when their absence is detected, or at least not look for them.
Option 1 is preferred because the seats are modular, so when we put them back in, we can unplug the bypass and plug in the OEM seat so that it goes back to OEM specs. Unfortunately, I have had no luck finding such a module, or finding someone to build it.
So, option two is what we are exploring now. Snap-on tells me the Passthru Pro will give me access to various options that I otherwise would not have access to, but cannot say definitively I have the necessary options to turn off the components in question since this is an odd question. That is understandable. They requested I call GM to verify, and of course that didn't go too far. I spent a couple of hours on the phone to finally be told they weren't sure and that the only option would be to buy a SI subscription and *maybe* information would be in some of the documents. They claimed no one could tell me for sure the information was there, that I would have to buy it to find out. I never even made it to the question if I needed GM specific software on my computer.
When searching for "J2534 GM", I stumbled on this forum. I am in hopes that some of you who work on these vehicles every day can give me some direction. I know that there has to be a solution out there, because the companies building the single wheelchair modifications aren't disabling the entire airbag system, even though they remove a front seat. Please give me your thoughts. I am open to anything at this point! Thank you!
Basically, we have two options:
1. Fool the controller into thinking the components are there by using bypass module(s)
2. Reprogram the controller to not shut down when their absence is detected, or at least not look for them.
Option 1 is preferred because the seats are modular, so when we put them back in, we can unplug the bypass and plug in the OEM seat so that it goes back to OEM specs. Unfortunately, I have had no luck finding such a module, or finding someone to build it.
So, option two is what we are exploring now. Snap-on tells me the Passthru Pro will give me access to various options that I otherwise would not have access to, but cannot say definitively I have the necessary options to turn off the components in question since this is an odd question. That is understandable. They requested I call GM to verify, and of course that didn't go too far. I spent a couple of hours on the phone to finally be told they weren't sure and that the only option would be to buy a SI subscription and *maybe* information would be in some of the documents. They claimed no one could tell me for sure the information was there, that I would have to buy it to find out. I never even made it to the question if I needed GM specific software on my computer.
When searching for "J2534 GM", I stumbled on this forum. I am in hopes that some of you who work on these vehicles every day can give me some direction. I know that there has to be a solution out there, because the companies building the single wheelchair modifications aren't disabling the entire airbag system, even though they remove a front seat. Please give me your thoughts. I am open to anything at this point! Thank you!
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