Originally Posted By: MC5W20
For anyone who searches for this in the future - The fog lamps come on with the headlamps, there is no separate switch. It was a burnt bulb, when one is burnt both will not work. No listing in the catalog for this lamp, so if your bulb is burnt so bad you can't read the number, it is a 921 lamp.
I replaced both lamps and they now work. Thanks to those above who tried to help.
Strange, Ford only lists "Cornering lamps" (p/n: 3156K) or "Auxiliary parking lamps" (p/n: 912) in that location.
Hmm, I wonder what the lighting suppliers list for the vehicle...
Well, that does it, this is what OSRAM/Sylvania lists:
Parking light
3457ALL
3457AST Silverstar Signal Lighting: Complete the Look: Crisp, Clean, Style
912
912LL Long Life Upgrade: Up to twice the life of the standard lamp
Meanwhile, this is what Philips Automotive Lighting lists:
Parking Light
3457NALLB2, LongerLife Standard Replacement - Twin Blister Pack
3457NALLCP, LongerLife Standard Replacement - Multiple Commercial Pack
912B2, Standard Replacement - Twin Blister Pack
912CP, Standard Replacement - Multiple Commercial Pack
At least this explains why there is no separate switch to turn them on...