SladeX

So on my C6 05, I replaced the SDM module due to a B0051 SDM deployment commanded code. After the repair, on startup I found no more codes. Air bag light is cleared. I was expecting BCM code B1001 indicating incorrectly pair SDM module with BCM.

I'll take the car out for a drive to work tomorrow and see if the B1001 code will appear after a drive.

My impression was that any replacement SDM would not work correctly with the BCM until programmed in. Anyone knowledgeable on the quirky 05s to know if you can get away with swapping the SDM with no problems?

Dano523

Would still go in to SDM set up with a tech II to make sure it configured correctly.


As for the replacement sdm, sounds like is came programmed "virgin" correctly, and BCM will marry it from the first GM lan bus check on start up. The Re-sps flashing is more for if the module was pulled out of another car already married, and needs to be remarried isntead with SPS flesh firmware flash.

SladeX

I checked with my Tech 2 software and found no codes in the system so I guess no need to reprogram. Feels good to drive now knowing I have airbag functionality.

I guess my understanding was the BCM pairs to the SDM, not the SDM to the BCM. Makes sense now as to what happened.

My concern is why the old one tripped up and got a SDM deployment code in the first place. I'm going to look around to see if anyone locally can read it and get the so called event data which made it think it deployed or if it was a general failure of the part.