Burnt out bulbs? Defective dimmer switch?
On my 2001 the way you turn the fog lights on is to pull out the switch you use to turn on your headlights. It looks like the switch will only rotate but give it a gentle tug and it should come out and the lights will go on. Also, when you drive with them on when you switch to high beams they will go out until you return to low beams.
With the lights on pull on the turn signal lever. High beams should come on. Pull again and they should go off.
Fuse or dimmer switch is the only answer i can think of if lights come on but just won't go from high to low or visa versa
There is a switch especially for the foglights under the dash towards the driver's side door left of the steering wheel. The foglights will come on only if the low beams or the park lights are on. When you change from low beams to high beams the foglights will go off. Also when you turn the car off the fog lights go off too.
if your dims work, but brights don't then it's probably your high beam switch.
If your headlights go out while you are driving, you can try switching to your high beams. When you get home, you can replace the bulbs.
The problem is your multi function turn signal switch. It usually controls your High beams, turn signals, and washers, or cruise control. When they go bad all kinds of weird things can happen.
The 2001 Subaru Forester has dual beam (both low and high beam are produced from the same bulb) so the low beams are in the exact same place as the high beams. Normally if your fogs are switched on and you're in low-beam mode, you should have fogs and low-beams. When you switch to high-beam, its just high-beams (fogs turn off normally). Both bulbs could be burnt out, but most likely its a fuse issue. See sources and related links below for more information on bulbs.
It could be one of two things: This is a factory setting to focus your attention on the road and not the dash. Possibly the high beams are drawing too much power from the alternator.
your light wires have been crossed somewhere ( probably at the tail lights, brake light circuit crossed with marker lights ) look for recent wiring work on the lights and make sure the proper wires match up.
you can't they are specifically designed to shut off mostly because IT IS FEDERAL LAW that's why the fog lights go off when you turn the high beams on. if you were to tamper with and find a way to bypass this SAFETY FEATURE you would be endangering yourself and everyone else on the road. In other words DO NOT ATTEMPT TO BYPASS.
Pull the turn signal lever towards you until it clicks, then let it go.