1990 buick lesabre turn signals don't work,hazard flashers work, bulbs are ok, running lights & brake lights work, just installed a new turn signal assembly, thought that would fix the problem, it did not, what's the fix?

SOURCE: 1990 buick lesabre turn signals

the turn signal flasher is a small canister-shaped or rectangular unit located under the dash, either in a clip adjacent to the steering column or in the convenience center which is located located under the right side of the dashboard and houses relays and other components. The fuse.faulty flasher unit a broken switch or a loose or open wire. We have eliminated the switch, I would check all fuses inside and out, you can replace the flasher with the hazard flasher as if I remember correctly they are the same shape and size, then it is just a matter with a tester light running it from the column to the sockets and finding the break. Hope this helps Tim