Fuel Pump Control Module Checks 

No. If module is damaged you engine won't run (no fuel pressure).

@@mansouralblooshi3004 not always could be partially damaged my pcm is messed up truck runs fine low voltage to the fuel pump

@@nicholasnardone3154I have low voltage on cylinder 2

1) check tire air pressure 2) check your spark plugs and wires 3) higher grade motor oil 4) check your coil pack 5) reset your truck computer (depends on your system's module complexity though) BMW's etc. 6) ethanol Burns hotter and faster, Auto and lawn tools run harder and refueling 50 to 100 percent more. Now I run only non etho, regular unleaded. Fuel might be the real culprit.

Ours just stopped. It is over and done with until replaced. And the part has been ordered over a month at Parker Cadillac.

Exactly!

So this is why my Cadillac Escalade ESV with 21000 miles is in the shop waiting for this module over a month. Stranded us on the side of a highway. These new vehicles go no where when these go out. I understand that.

@@ralemc1960 logistics could be the cause of the delay - but yes, everything is integrated and expected to work a certain way. If you have an actual hardware failure, then it must be replaced. Here's the thing though, because it's a computer module we tend to thing of it as different than if it were just a fuel pump. But you'll probably never have to replace a fuel pump... Or any of the other PWM motors in that thing. The reality is despite all the insane integration of technology, the hard mechanical components are going to run for a very very long time with good maintenance. Use the correct fluids, reasonable intervals etc and 300k isn't even a big deal anymore