Isn't any ! Check out this video on testing GM fuel pump electrical circuit . GM Fuel Pump Relay Testing
SOURCE: Lost power on drivers side door 2007 chevy equinox
check fuse .if fuse good you got a bad ground.
SOURCE: Where is the fuel pump shutoff switch located on a 1996 chevy
may have a split hose in tank, makes a spashing noise
SOURCE: 2007 chevy equinox driver side window quit working
I had same issue, you must remove driver door panel and you will notice some wires have broken after constant open/closing of door. Reconnect wires and you are good to go !
SOURCE: 2007 Chevy Equinox, got a
The ignition 1 voltage of the Run/Crank relay is more than 3 volts different than the ignition 1 voltage of the power train relay for more than 2 seconds .
if your car is still under warranty run it to the dealer to have this diagnosed, this could be a
complicated process. this could be a problem in the circuit or the ECM( engine control module).
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