2003 Tahoe, lots of electrical gremlins

[SveinHa]

I got a bit bad feeling about apparently epoxy filled SDM module and cut a hole in it...

Definitely not epoxy filled. Give the electro cleaner a go tomorrow before applying power...

If I need a new SDM, is it ok to get one from a scrapyard/Ebay and just put it in or do it need to be programmed?

 

[Mooseman]

Checking the manual, it doesn't say anything about that, however they talk about Mig welding in new bolts if they are stripped or broken. And it's an actual sensor, not just a module as it has to be mounted in the proper direction. There is this one caution:

If the vehicle interior is exposed to moisture and becomes soaked up to the level of the sensing and diagnostic module (SDM), the SDM and SDM harness connector must be replaced. The SDM could be activated when powered, which could cause airbag deployment and result in personal injury.

I did ask Gemini and got this answer:

Yes, a new or used replacement
Supplemental Restraint Module (SDM) on a 2003 Chevy Tahoe needs to be programmed using a specialized scan tool (like a
GM Tech 2
or equivalent).


Failure to program the module will result in the airbag warning light staying on and the system not functioning correctly in the event of an accident. You will likely encounter a configuration error code, such as B1001.

 

[mrrsm]

Will you need a Tech 2 or a VXDIAG NANO Scan Tool to re-program - re-calibrate any of the modules over time? Thankfully the Early Model Tahoe is well within the Wheel House of the TIS2000 Software needed that will work up until 2013.

https://www.amazon.com/dp/B07YDCRTSD/?tag=gmtnation-20

If you can locate one of these on eBay... It will work with TIS2000 SPS Software:

Amazon.com: VXDIAG VCX Nano Diagnostic Programming System Compatible for GM/Opel : Everything Else

Amazon.com: VXDIAG VCX Nano Diagnostic Programming System Compatible for GM/Opel : Everything Else

www.amazon.com