open the dash and feel to the left it is in there
Located on the drivers side, under the dash, on the drivers side of the steering column. It is mounted in a relay bracket. Buy a new one and you will know what you are looking for.
There was no 1989 Chevrolet Lumina produced. First year was 1990. The Flasher Relay on a 1990 is located: Front seating area, driver side, under dash, mounted on passenger side of steering column.
Front seating area, center, under dash, mounted on center dash brace.
It has 2 flasher relays. The turn signal flasher relay is located on the drivers side under the dash, mounted on the upper passenger side of the steering column support. The hazard flasher relay is located on the drivers side, under dash, above kick panel, mounted on bottom of convenience panel.
The 1990 Toyota Camry turn signal flasher relay switch can be found beneath the drivers side dashboard. The turn signal flasher relay switch will be above the gas pedal.
Under the dash by the steering column.
It has a flasher relay for the signals only.
If the turn signal bulbs light up but they will not flash, the Flasher Relay is defective. You need to replace it. Purchase one so you will know what it looks like. It is located front seating area, center, under dash, mounted on center dash brace.
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I am not an expert on the 1990 Grand Prix but on a GM product I would look for a round flasher assembly located near the fusebox downunder on the left side of the dash.
where is the flasher located in a 1990 thunderbird supercoupe
under the pass front seat by k.a.