> I have had a weird electrical problem as of late on my Taco. When I press
> the brake pedal, the driver side turn signal illuminates (steady, not
> blinking). If the turn signal is on when I press the brake, the blinking
> stops, and the lights stays steady on. Any ideas where to begin
> troubleshooting on this would be appreciated.
Could a bad ground somewhere. If the ground connection is missing, the brake lamp may be finding a path to ground via the turn signal bulb. Also, any chance you have a aftermarket towing wiring harness connected to the vehicle? If so, try removing that and see if things clear up, often poorly installed or functioning wiring adapters can mess up the rear light operation.