QUOTE(Cairo94507 @ Jul 15 2019, 05:40 AM)
Thanks - I will keep that up my sleeve and hope we do not need to bother Jerry. Thanks, Michael
In the stock wiring on a 914, the ground side of the relay coil for the fog lights connects to the hot side of the high beam filament on the headlights.
The current through the relay coil is so small that it doesn't even warm up the high beam filament so it doesn't glow, it just acts as a nice, convenient path to ground, but when you turn the high beams on, it sends 12v to that wire, causing the convenient path to ground to disappear for the relay since the filament warms up.
This is what causes the fog lights to turn off automatically when you switch the high beams on.
With LED headlights, they don't function the same way at all, my guess is that the small amount of power trying to flow through the fog light relay is probably triggering the headlight's circuitry into thinking "Oh, I see 12V on the high beam terminal, time to switch to the high beam LED and turn off the low beam!" attempting to switch to high beams, not getting enough power on the wire for it (since it's just being fed through the high resistance tiny coil of the relay and is only a few milliamps of current) and then resetting and going right back to turning on the low beams again, causing the flicker.
So when switching to LED headlights there's a couple options that come to mind.
Option 1, you can add a high power ballast resistor between the high beam wire and ground, this basically removes the benefits of LED headlights though, adds current draw, makes heat, and might not even help the flickering low beam in your case.
Option 2, you can move the ground for the fog light relay from the high beam circuit, and instead ground it out to the chassis, in which case the fog lights can be turned on regardless of if you have high or low beams on.
(If you want to RETAIN that auto-off feature, option 2 can be modified by having power for the fog lights be fed through an additional relay, but using the normally closed contacts, this relay is actuated using the high beam wires so when the high beams are on, the contacts open and power is cut to the fog light system. (This adds an extra relay that may need replacement/servicing down the road.))
For your particular situation though, since you want to have your fog lights on even if the headlights are off, you'll want to move 2 wires, one on the fog light relay, one on the fog light switch.
First, move the white/blue wire on the fog light
relay to a chassis ground, this is the same as the post FlacaProductions linked to, and will remove the interaction between the fog lights and the high beams, and then you'll also have to move the Brown/Blue wire on the fog light
switch to a fuse that gets power with the key on, possibly the blower motor fuse, or the brake light fuse, which should be fuses 8 and 9 respectively (but I'm not 100% on the 914-6's fuse box arrangement.) This will allow you to turn the fog lights on even with the headlights off.