What is the location of the Fuel Pump control module? I've removed the ECM behind the glove box and it's not under it.

 

Not totally sure, but I believe you should be looking for a relay

 

Thanks, but the relay has already been replaced.

 

Please describe what your rig is doing for further assistance!

 

No power to the fuel pump.
No signal from the fuel pump control module to the fuel pump relay.
Ground is good, connectors are good.
Thinking I need to replace the fuel pump control module, but can't seem to locate it.

 

The only fuel pump relay or module I could find for a 1994 Chevy Blazer claims that it's mounted on the right hand side of the upper firewall.

 

Thanks, that is exactly where the relay is.

 

Could this be a problem with oil pressure switch cutting off pump in car of this year?

 

Not according to the wiring diagram, the oil pressure switch is after the signal from the control module.