GM Repair Problems? Ask GM Repair Expert Now.
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you are sure that wire has 12 volts when cranking it over ?
ok if that shows 12 volts when cranking it over then at the fuel pump module connector with the key ON does the red/white and one of the pinks show 12 volts with the key ON and is the black a good ground ?
with a meter set to DC volts put the black meter lead into the block wire terminal in the connector and the red lead into the red/white wire terminal with the key ON it should show 12 volts if it does then just move the red meter lead to the 2 pink wires and one of them should show 12 volts with the key ON if it does then the fuel pump control module is bad
if neither wires show 12 volts set the meter to OHMS and leave the black meter lead to the black wire terminal and rub the red meter lead to a good metal ground it should show close to 0 ohms if not run a new good ground to the black wire
if the red/white wire or one of the pinks does NOT show 12 volts check the 2 fuses # ***** and # ***** for being blown
if those fuses check out good then those 2 wires from the under hood fuse box are bad between the fuse box and the fuel pump module connector
the odds are it will have a good ground and both powers and the fuel pump module will be bad