There are two flasher relays side by side. One is for the signal lights, the other is for the emergency flashers. They are the same relay so you can swap the two and see if the problem your having changes when you try to operate them.
There is a flasher fuse and a flasher relay. These are two different items. You can pull a flasher fuse out and inspect it. When it's blown you can see it that it is blown.That vehicle has two flasher relays. One is for the directional signals and the other is for the emergency 4-way flashers. They both use the same part number relay. Simply switch the two flasher relays to determine which one is bad.
There are two relays, one for the emergency flasher and one for the turn signals. Replace the Flasher Relay for the turn signals, it is defective.
Look in or around the fuse panel --left side of steering column
The bank 1 sensor 2 on a 1996 Chevy Blazer is mounted in the exhaust. Sensor two is just behind the catalytic converter.
The hazard and turn indicator flashers are located under the dashboard, directly below the radio and just to the left of the cigarette lighter/ashtray. There are two side-by-side, with the turn indicator flasher on the right. You need to begin by removing panels starting from below the steering column, then working your way to the right. There was another answer that stated it was located behind the glove box, but those are relays.
These are two separate circuits. They use separate flasher relays. They use separate fuses. They use separate switches. Check your signal fuse and signal flasher relay.
There are two flasher relays on your vehicle, one for the turn signals, and one for the hazard lights. The turn signal flasher relay is located below the left hand side of the instrument panel. The hazard flasher relay is located under the steering column support.
There are two main relays. Pop your hood, Look directly to the right of your Break master cylinder and located on your firewall you should see two black relays with separate wire harness attachments. Relays rarely go out so, check your fuses and power to your fuel pump.
Look behind and to the right of the center console. If you lower the glove compartment it will be to the left of it on the firewall. There are two flasher relays, a hazard (upper) and a turn signal (lower).
Turn Signal flasher is located in the fuse box on the left side of the dash. There should be two round flasher units. The top one is the four way flasher and below is the turn signal flasher.
First off your vehicle has two flasher relays. One for the turn signals and one for the hazard lights. Both Relays are located under the dash on the drivers side mounted on the passenger side of the steering wheel. It simply plugs in. Go buy a new one and you will know what is looks like or click the link to see a photo of the relay.http://www.autozone.com/electrical-and-lighting/relay-turn-signal/duralast-relay-turn-signal/cadillac/seville-sls/1996/8-cylinders-y-4-6l-sfi-dohc/221854_0_0/