[kevinmward]

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

 

[escapepilot]

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?

 

[oak1971]

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.