Fog Light Wiring

[sjx40250]

Based on the description so far, it sounds like the best approach would be to build my own. Do you have a PN for the kit, where did you get it and what price range?

 

[alopeks]

Okay, turns out I'm stoopid...

I do NOT have the correct PDC, because I have the relays, but they're not connected to anything... No pins, just holes that keep the relays from moving around too much. So, I'm back where I started. Stupidstupidstupidstupidstupidstupid.............

-alopeks

 

[hubs97xj]

I found this on JF (I think? Maybe here. Regardless, it doesn't get much simpler). Hope it helps.

 

[VestaviaPirate]

You never power the fog lights through the switch, you only use that switch to operate a relay that can handle the current, try to power your fogs directly though that little dash mounted switch and it may last all of 5 seconds.

No, I know that. The wire I'm running is from my relay to the switch. I just get hung up on which of the 4 color coded wires of the switch to cut in to.

 

[RichP]

Okay, turns out I'm stoopid...

I do NOT have the correct PDC, because I have the relays, but they're not connected to anything... No pins, just holes that keep the relays from moving around too much. So, I'm back where I started. Stupidstupidstupidstupidstupidstupid.............

-alopeks

That's what my 98 was missing, sockets, that is why I spent the $85 for the factory add on kit. Then a few month ago I bought the 4 hole dash panel so I could route my head units USB cable to the front of the dash.

 

[Maltese Chief]

I found an easy way to change
the stock fog light switch wiring so that
the fog lights will come on
with the park lights.

I still rewired the entire circuit
using a heavy duty relay and wiring,
but used the stock switch
as a trigger for the relay.

Here is the wiring in my '89 XJ;

Apparently the green wire in the center
serves as the power input from the lowbeams;

The orange/black wire is a power input
to the display light which
activates with the parking lights;

I cut the green and orange/black wires
and spliced the switch end of
the green wire into the orange/black wire;

The fog lights now activate with the park lights on.
They remain on with either low or high beams.

I'm not sure of the legalities here and
only show this as an example of what I did.

Use this at your own risk.:skull1:

 

[fyrfytr1717]

Interesting... do your fogs still come on when you dim your panel lights? I'm making a few assumptions regarding the wiring in your '89 (I'm only familiar with my '99) but if I remember correctly, with my panel lights dimmed that circuit is only running at ~5 volts. A typical Bosch style relay requires a pull-in voltage of ~8 volts.

 

[Maltese Chief]

Great question, you know I have never had a time when the fogs didn't come on, but I may have never dimmed the panel lights either.

I'll have to re-evaluate my set-up.

Thanks.

 

[fyrfytr1717]

There's a possibility it may not be an issue on your '89, I honestly don't know. I only asked because I was considering using the dimmer circuit on my '99 to activate some relays so that the indicator lights on the switches wouldn't be so bright. When I saw how low the voltage dropped I changed my plans. Really, it wouldn't even be a problem if you don't dim your panel lights. I just try to set up all my modifications so they don't require any "special knowledge" if someone else were to be driving my Jeep.