99 Sunfire, odd radiator fan issue

[alnrs1963]

I searched the forums but couldn't find the exact problem.

It is; radiator fan will not run even when AC is turned on which when that happens eventually kicks off comp due to high side pressure.
What's been done; replaced coolant sending unit & harness (temp gauge was not working, works now), replaced thermostat, disconnected fan & hooked direct to battery for a sec to see if it ran (it did), swapped heater & coolant fan relay to check relay (blower fan still ran), checked 30A fuse (good), checked for power @ fan connection (no voltage detected), any ideas?

 

[Zimgxp]

Sounds like you need to use a meter and check for power from the fan back. Is there 12 volts at the relay?

 

[alnrs1963]

Sounds like you need to use a meter and check for power from the fan back. Is there 12 volts at the relay?

I will try to check that this afternoon, any idea which pin sockets to check for voltage?