1998 Pontiac Bonneville Blower Motor Relay Location

The blower motor relay is located center rear of engine compartment below right maxi fuse block see no. 7 below-the fuse you're looking for is the AC fuse 30amp it powers the blower motor relay/motor itself

instrument panel fuse box, check the one with the circle. The circuit may go hot when you turn on the key, use a testlite on the circuit. The relay should be underhood center, rear, check the firewall.

Also check ac fuse, my info says 30 amp, the fuse block for that should be under the passenger side dash. the previous fuse block is under driverside dash.