I have a 93 and the signal relay is on the passenger side beneath the glove box. You can reach it by pulling the plastic panel out so that you can see and replace the flasher.
The 2000 Buick Regal cooling fan circuit relay switch can be found in the fuse box. The fuse box is located in the engine compartment.
Mounted inside the fuel tank.
On the top of the starter where wires connect
where is the 91 vandura G2500 Instrument Panel Cluster Relay located :milsunworld@yahoo.com
its on the front fuse box... its marked.
under the dash behind kickboard on passenger side.
pull it and switch it with your wiper relay or a similar same part numbered one.
I believe yours has a starter mounted solenoid and not a relay.
Depending on the year, the Regal could have a relay to control the high beams. Check the distribution box under the hood to see if there is a bad headlight relay.
where is horn relay on 1995 buick roadmaster
Flasher relay.
There is no relay...your turn signal /combo switch is bad...