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Discussion Starter #1
so took car to Buick yesterday to have code pulled ,wouldn't communicate with SDM fuses are good, tech says broken wire.

I'm not getting 12 volt on pin 31 which should be hot all times
AC drain made corrosion but wiring looks ok
I have the seats and console out atm

wire is #1340 any idea if it goes direct to fuse box ?
 

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Discussion Starter #2
I found the mucked up corroded splice this am and have found power , putting back today lol


bad splice is in body harness crossing passenger side under carpet heading to fuse box
 

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cant tell exactly where in the front this is.. (pass seat?)
Though I remember some 2009-2010? had an issue where over time- something on the front passenger seat- pinched a wire.
The issues popped up-- usually when someone was sitting in the seat.
 

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Just wanted to say this forum solved my problem with a SRS light and no power at PIN 31 of the SDM module wiring harness. You could find this splice without removing the seat or carpet.
 

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Another forum success story. Glad you found information on it with only searching the issue and didn't need to start new thread. Thanks for posting .
 
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