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Anyone got this code before ? Truck just randomly cut off and won’t turn back in and getting this code now. ObdII reader says
“Fuel Pump A Control Circuit Low”
I have a duramax
 

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Not that particular code, but a similar P0686 low voltage to the PCM. It's intermittent, but I'm looking for corrosion and/or chaffing. Have you ever washed the engine bay?
 

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Hope it's just a bad ground. I wonder if there is a easy way to jumper the pump to a known good hot and ground.
 
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