Dazed and Confused
Join Date: May 2012
Location: Upstate New York
Re: 6.0 diesel problem code po232
Unfortunately, I can't find a schematic for your truck, but if you have continuity across the switch, it's not the switch. I'm assuming you have a multimeter, verify you're actually getting power to the pump, it might be a bad pump.
Ever notice that there's so many high performance parts available for GM products?
Did you ever think that maybe they NEED them?