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Super Moderator
5,932 Posts
At the relay socket are the following wires.

Pin A Tan/White wire goes to the fuel pump. 12 volts on this wire when
the relay energizes.

Pin B Black/White wire is ground for the primary relay coil.

Pin C Dark Green/White wire. ECM provides 12 volts on this wire
to energize relay.

Pin D Red wire. Comes from Diagnostic test connector above drivers
right knee. For testing the fuel pump on TPI engines. If you apply 12 volts to this pin (G) the fuel pump should run. Not sure what Pin it is on the TBI engines. Look at the test connector for the Red wire.

Pin E Orange wire. Fusible link. 12 volts from the battery.
Wire is hot at all times.
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