Where is the drl located on an 02 S10 - 2002 Chevrolet S-10

Doesn't have a DRL module , BCM - body control module controls the daytime running lamps relay - located in the under hood fuse / relay center .

whats a DRL ??? any one ????????????

Check circuit breaker and switch at dimmer end.

I probably should not be answering this as I'm no expert, but ...
Let's see now, DRL comes on when in gear and headlights off, emergency break off.
Silly question but, are headlights working manually (click on manually and verify both working)? High beams, low beams OK?
Check the fuse. The DRL fuse in the underhood fuse box and the label tells you which one. I think it's 31 or 32 but not sure.
Aftermarket lamps (esp the stupid blue lamps) can cause this if a higher wattage is used. (Burns the plastic lamp sockets).
Also check the DRL relay.

did you check the DRL fuse under the hood?

That DRL light on your dash indicates that your Daytime Running Lights are on. It's supposed to be on, nothing wrong with your bulbs.

The drl module is part of the body control module,(bcm) located under the dash on the heater box. The drl relay is in one of 2 places. In the
fuse/relay block on the left fender. Or taped to the body harness near
the hose for the rear washer. The rear washer hose comes out of the
bottom of the front washer bucket to the firewall. Hope this helps.

It will be in line with the heater hoses near the firewall on passengers side.

drl stands for daytime runnig lights and does not have them for those trucks intended for the usa more for canada. missing fuse is not your problem it lies in the reastate (dimmer switch) on the dash it iether burned up or its moved to the all the way dim location

I would take a look at your headlight dimmer switch. The dimmer switch works independent of the DRL system.
Below is the wiring diagram for you vehicle.
Good luck and let me know.
Regards,