I got fault code B0091 00 when scanning the controls on my 2009 Silverado 3500hd. I replaced the front impact sensor but still get the same code and cannot reset with a Aute l AL619. What would be the next step?


Unfortunately fault codes can narrow down a problem, but are still.. kind of generic.


The fault code B0091 00 does mean 'left side restarints fault sensor 1'


However, overall there are 3 possible causes including:


Faulty Left Side Restraints Sensor 1


Left Side Restraints Sensor 1 harness is open or shorted


Left Side Restraints Sensor 1 circuit poor electrical connection


So maybe you are missing something here  

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