CT are you talking about the fog light switch or the

bulbs in the taillights.

There is one fog light per side in the tail light

assembly. Both need to be of same wattage and

amperage. That's why is recommended to replace both at

the same time. If you only replace one, the amperage

between the two bulbs could be different, even though

the wattage is the same.

This is the reason why the bulb out light indicator in

the instrument panel lights up, even though both bulbs

are working. The bulb out relay reads the difference

in amperage as if one light is out so the indicator

lights up.

As I mentioned in my post, in my 745 instead I placed

2 new 5w bulbs which are on at night all the time and

makes the taillights look nicer. Fog lights can not be

kept on, its against the law, except for severe fog or

rain conditions. Rarely a problem in Florida.

Hope this helps.