The most common switch mounted there is the switch for the rear defrost. It could also have been a switch to power a factory supplied amp for the stereo. Most likely it is the first.
When you have your head lights turned on (the switch turned to the right all the way), pull that same switch out towards you
There should be a roll switch right next to your light switch on your dash to dim the lights with.
you didn't say which lights. is the switch on the dome in the right position
Replace the turn signal flasher relay.
Your switch either has a short or is going out
Pull out on the light switch when you have turned it to the right to turn on the lights.
you will find a switch on the panel to the right of the heating controls (near the hazard switch)
To turn on the lights in a Ford Windstar, locate the headlight switch on the left side of the dashboard. Rotate the switch to the right to turn on the headlights, or pull it out for the fog lights if your model is equipped with them. Additionally, the switch has settings for parking lights and interior lights; make sure to adjust according to your needs. Always ensure that the vehicle is in the "On" position for the lights to function.
You probably turned them on by accident. They are controlled with the same pull switch that turns on the headlights. By twisting the switch to the far left it will click and the dome lights will turn on, by twisting it to the right it will turn off the interior lights and will then dim the dashboard lights.
DIMMER SWITCH FAILURE.
with the park lights on both left and right side are lite. but when the brake is applied the right brake lights up and the left goes out(doesn't light up)
They help you figure out which side of the plane is which in the dark. The green lights go on the right, or starboard, side; the red ones are on the left, or port, side.