Electrical Issues

Help?

I have an 06 taco xrunner and I'm having some electrical issues.

It started after I changed out my driver side brake light.
My speedometer stopped working. A/C and vent stopped working, but the fan still blows. My turn signals don't turn on, but my hazards still flash. Lastly my airbag won't turn back on.
Fuses look ok but I haven't used a tester yet.

 

The whole light assembly or just a bulb? Anything fancy or just a regular incandescent bulb?

I would guess when you put things back together you pinched the wiring harness and created a short. At least that's where I'd start looking.

 

Just the bulb. Incandescent.

I'll start looking there. I noticed the connector had what looked like corrosion, or it could have been a charred mark from shorting it.

Could that really have caused the other problems?