Where is the ( turn signal ) flasher located on my 1990 toyota pickup?

you need to check your relay. Ususlly they are under your hood. YOur user manual should point them out. with the car key turned on, check if relay is hot. if so there is your drain.

The turn signal relay/flasher is located behind the drivers kick panel in fuse box

Hi there:
On 1990 Isuzu Truck t he Flasher is located front seating area, driver side, under dash, near fuse panel, taped to dash wiring harness.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Check for the FLASHER. For 1991 Toyota Truck Pickup 4WD (4 cyl) 2.4L FI 4cyl the Flasher is located front seating area, driver side, under dash, mounted driver side of steering column.

Hope this helps.

Try changing out your turn signal flasher.it might be under your dash by your fuse box.Some trucks have two one for turn signals one for 4 way flashers.By all means check the fuse first.

check all bulbs,inspect sockets for corrosion,rust ,or sighns of overload.follow wires and check connectors if all good ,replace the flasher ,,if that doesnt fix it ,the blinker switch in the steering coulmn would be next

LOOK ON THE DRIVERS SIDE DOOR, OPPOSITE THE HINGE IS A PANEL TO THE LEFT OF THE HEAT/A/C REGISTER. HOPE THIS HELPS. PLEASE KEEP ME POSTED. THANKS FOR AN HONEST RATING AND FOR USING FIX-YA. GOOD LUCK

check the brake switch, you might need a wiring diagram to see exactly how the wiring is, but that is a possibility or it could aslo be the flasher

If the right side signals are working properly and you can hear the signal flasher clicking when the right side signals are selected, the flasher is not the problem. Its more likely you have a short to ground in the left side wiring somewhere.

Try the fuse/breaker panel under hood, drivers side.