Either the driver is indication the wrong way or the wiring to the indicators is crossed.
Most likely turn signal flasher
I was wondering is there a fuse diagram for the 2003 Ford Explorer XLT? What causes the left and right signal lights to not work on the 2003 Ford Explorer XLT? Can the side mirrors on the 2003 Ford Explorer XLT?
Yes.
Short to ground.
either a bulb or the signal flasher relay located on the fuse panel usually opposite the hazard flasher relay
head lights won't work, no power to them, signal works , reverse lights work
If the dimmer switch for the dash lights are turned all the way to bright and then clicked one more time the interior lights will come on and stay. Try turning down your dash lights. It might also be a broken or bent door pin.
have you checked the fuses?
Blown fuse or defective brake light switch.
be cause your bulb is blown out
The most probable cause is that the brake light switch is out of adjustment.
Most likely poor wiring.