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2015.5 Silverado LTZ 3500 SRW Stock truck
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Particulate matter sensor electrode supply circuit high voltage.
If you are out of warranty, replace the sensor.
White Organ Output device Font Gesture
 

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2015.5 Silverado LTZ 3500 SRW Stock truck
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1,348 Posts
Should be covered by emissions warranty.
You could try a regen. And see if the code clears.
 

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Discussion Starter · #6 ·
Thanks, I drove it at highway speed to get to a dealership. The code cleared but came back. Determined it was indeed the DPF sensor. Is covered under warranty so all is good. Thank you for your expertise and help.
 
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