Has any one got a schematic on how to rewire to get the fog lights to come on with the park lights, or to to be independently switchable? There are times I'd like to run with the fog lights only or fogs and parks.

Stewart

How exactly does North American fog lights work?
Changing the wiring is fairly easy.

They can only be turned on if the headlights are on and go off if you switch on high beams. They can't be run independently.

Stewart

Are you sure? It surely is useless to have the headlights on with the fog lights, as it defeats the whole point of fog lights. Clearly N. American fog is different to European fog. :grin:

Anyway, the front fog lights are driven by a relay (under the bonnet). This relay is controlled by the fog light switch. The power on this switch should be taken from the parking light "rail", only in N America the power comes from the headlight "rail".
So the first thing to do is identify the wires on the switch. You need to take that switch panel out - take the fuse compartment cover off and push the panel out from behind complete with plugs.

Then with a multimeter you should be able to identify the incoming 12V, and the switched 12V to the relay. There are 2 other wires on that plug, these being for the little indicator light. It really then is a case of using the parking lights volts instead of the headlight volts. This is not a mod that you can do without cutting wires, but you should only need to break the 'power in' to the switch. There is a ready feed of "parking light" volts on the input to the panel light dimmer for example.

And that's it. Fairly straightforward.

Yep, that's the way it works in the US. However, they technically aren't "fog" lights, they are "driving" lights. Fog lights are yellow/amber in color; these are white.

As for modding them to go on, if the SF is wired like the Tiburon then here's a kit you can buy to do the job:
http://www.newtiburon.com/forums/showthread.php?t=98655

If you want to do it yourself, these will give you an idea of how to do it:
http://elantragtclub.tripod.com/elantra/id384.html
http://www.elantraxd.com/forums/showthread.php?t=20438

This post has been edited by NovaResource: Sep 13 2007, 12:52 PM

Thanx guys. This is the type of thing I've been looking for. I'll suss it out and apply it to my '07 SF.

Stewart

Do you know if you can add fog lights to the base model, GL? It's got the spot in the front grill but was not an optional featue unless I moved up to AWD.

We added them after the fact to our Tucson.

I'm sure the dealer could install them but no doubt that the price would worth most of an arm and leg. Check with them. On my Brother's Subaru Impreza they were about $600 but that was 4 years ago.

Stewart

with my old 2002 santy all u had to do was ground the pink wire coming off of the switch but i dont know if that is true with the 07

Well Guys, I've done a lot of digging and basically I've found that the procedure detailed on the Elantra site will not work on the SF. THe connector under the steering column does not have a ground wire in position 13.

I've found the following schematic but haven't been able to figure out which wire neeeds to be moved.

Fog Lamp Schematic

Can anyone aid me and see what you think?

TIA, Stewart

Edit: You may have to scale the pic with the CTRL + "-" to get the lettering to align. Sorry

This post has been edited by MurfsDad: Sep 27 2007, 07:46 PM

i have been wanting to do this with my sonata i wonder if the wiring is the same

Joe:

You may be able to do the mod as outlined in the Elantra forum note a few posts above. I'd check that one out. I can't because my wiring for the Santa Fe is different for '07.

Stewart

Stewart, I'm not sure if there is anything in the Sonata thread that will help you out or that you haven't already looked into but here it is:

http://www.hyundai-forums.com/index.php?sh...try#entry112181

Thanx UniR. I'll check it out.

Stewart

Well, I've checked this possibility out and it looks like the wiring is different. At least the diagrams on the Hyundai site do not show any connection between the headlights/parklights/hi-low switch, etc on the Santa Fe. I'm starting to think that the diagrams/schematics on the Hyundai site are not complete or that the control of the fog lights is done through the PCM somehow or maybe the DRL module.

I'm still looking.

Stewart

Stewart, have you thought about just powering them from the parking lights and then just reuse the switch to open and close that circuit? Technically speaking, you'd might still need a relay to shut them off with the highbeams. Some jurisdictions, I know Ontario for sure, have laws against having any more than 4 (non-marker) lights at once.

UniR:

My electrical skills are limited. I can read a schematic/diagram and cut and run wires but working freehand is not my forte.

As for the relay, I live in rural N.B., shouldn't be a problem. For those of you in the Excited States think Georgia, Alabama or Oklahoma, that's Carleton County, New Brunswick, sorta. :grin:

Stewart

Stewart -

I'd be interested in the results and would offer assistant in collaroating a solution. Like you, I'm a bit of a shade-tree tron, so some of this stuff (schematics) is a bit daunting to me so I'm not sure what assistance I can provide - willing - though you seem to be far ahead of me in the researching curve (I just got my SF two weeks ago).

I agree with you and would prefer my fogs on with parking (or above) light power and not be limited to headlight power. My only two considerations would be:
1) would still want the key to be able to shut off all lights (since there's no warn buzzer)
2) would still want the fog switch to provide permission

Actually, those considerations are secondary to my concern for a total harness melt down due to an error or bad read on my part when reconfiguring the connections.