I replaced the old bulbs on my side marker lights because they weren't coming on when the headlights were on.

The new bulbs didn't come on, either!

So I replaced the 10 amp F5 fuse in the passenger compartment fuse box.

The new bulbs still didn't turn on.

I checked the 40 amp fuse in the engine compartment fuse box (F10??) and it appeared to be intact.

Relay issue?

My rear fog lights don't seem to turn on, either?

Thoughts?

 

Are you talking the ones in the fender? Or the headlamp assy? The side markers (fender) only come on with signal.

 

Ha ha!

Bless you. I had no idea. Good grief. I thought that they would always be on when the headlights were on. I did not realize that they were side blinkers.