Can U adjust fog lights 2 come on when u turn on your lights?
10-30-2007 | 08:01 AM
#5
New Member
Joined: 10-23-2007
Posts: 10
From: Colubmia Gorge, Oregon
Be careful what you wish for. If you cross-wire the headlights and fog lights, you will get fog lights when the headlights are on like you want, but you willl also get headlights and all other nighttime lights when you push the button for fog lights (on the dash). also, the fog lights and the headlights are "smart" systems, at least partially under computer control. They flash on remote door locking, headlights stay on 20 seconds after key removal, lights flash on theft alarm, etc. I would be very careful about any wiring modifications on a modern computerized car. You can get some very confusing results. You might even let the smoke out of something........
10-30-2007 | 11:23 AM
#6
Banned
Joined: 08-25-2007
Posts: 488
From: Myrtle Beach SC
Be careful what you wish for. If you cross-wire the headlights and fog lights, you will get fog lights when the headlights are on like you want, but you willl also get headlights and all other nighttime lights when you push the button for fog lights (on the dash). also, the fog lights and the headlights are "smart" systems, at least partially under computer control. They flash on remote door locking, headlights stay on 20 seconds after key removal, lights flash on theft alarm, etc. I would be very careful about any wiring modifications on a modern computerized car. You can get some very confusing results. You might even let the smoke out of something........
Put a sticky on the steering wheel. "turn on fog lamps" Less expensive and safer.
I use the fog lamps as well but only for fog. They don't throw a whole lot of light on the road except in places where if you do see something it's far too late to avoid it.
10-30-2007 | 12:53 PM
#9
Senior Member
Joined: 09-12-2005
Posts: 317
From: Parkland (Tacoma), WA
Not in any US state I am aware of. It's illegal to have high beams on with fogs in some states, though. The stock wiring and programming has been designed to be compliant with the traffic laws, including turning on the headlamps when using the windshield wipers. That's not required in every state, but it is a pretty good idea.
10-30-2007 | 12:56 PM
#10
Senior Member
Joined: 09-12-2005
Posts: 317
From: Parkland (Tacoma), WA
Be careful what you wish for. If you cross-wire the headlights and fog lights, you will get fog lights when the headlights are on like you want, but you willl also get headlights and all other nighttime lights when you push the button for fog lights (on the dash). also, the fog lights and the headlights are "smart" systems, at least partially under computer control. They flash on remote door locking, headlights stay on 20 seconds after key removal, lights flash on theft alarm, etc. I would be very careful about any wiring modifications on a modern computerized car. You can get some very confusing results. You might even let the smoke out of something........
If you cross-wired, yes. If you disconnected the power input to the fogs and instead used the headlamp output, then no worries. (You also should diode isolate that to prevent any backfeed through the foglamp ground.)
OR, one could isolate with relays.
Just jumping into the harness with scotch-locks, pliers, and pieces of wire is almost never good.