Thread: Simple driving light wiring

hI Paul
Just a thourght, driving around with fog lights on is a $200 fine and a demerit point. Well it is in SA any how,

Good luck connock

Originally Posted by connock

hI Paul
Just a thourght, driving around with fog lights on is a $200 fine and a demerit point. Well it is in SA any how,

Good luck connock

Thanks for the 'heads up' Connock, so it should be too, especially as most 'fog lights' seem to be aimed at oncoming drivers eyes, not at the road immediately in front.

That will mean I need to use two relays, but they are cheap, and I really, really don't want to get under the dash to mount and wire an extra switch.

Cheers,

Paul

Originally Posted by connock

hI Paul
Just a thourght, driving around with fog lights on is a $200 fine and a demerit point. Well it is in SA any how,

Good luck connock

Yep, NSW too.

When on high beam how will they dip with the high beams - also a legal requirement.

Garry

Very Very simple to run wires from the engine bay to under & around the steering column. There is already a Grommet in the firewall.
Personally i would make (these days you can probably buy a pre-made loom) a loom myself for this & keep the factory wiring untouched.
Cheers

Originally Posted by garrycol

When on high beam how will they dip with the high beams - also a legal requirement.

Garry

Yep with a relay, when the high beams are dipped, the driving lights would go off automatically.

I will check out what Sniegy says though I still think it would be easier to use the existing fog light switch. The under-bonnet area looks easy enough as Sniegy says, but not so sure about the under-dash area. Whichever, it would still be necessary to tap into the vehicle wiring to hook the relay into the high beam circuit.

Must be getting even lazier in my old age, always looking for the easy solution.

Personally I would (I have) run a small loom as sniegy says…

You would need to push the fog light button on everytime you start the car because it defaults to off after shutdown – and as other have mentioned having more than one pair of lights illuminated for low beam is illegal not to mention inconsiderate boarding on irresponsible – to get around it you would need 4 relays – 2 each side. Each fog light is switched independently by the LCM on a circuit that normally supplies 55w not 2x55w (that’s how the Range Rover is – I’m assuming the D4 is similar)

Originally Posted by harlie

Personally I would (I have) run a small loom as sniegy says…

You would need to push the fog light button on everytime you start the car because it defaults to off after shutdown – and as other have mentioned having more than one pair of lights illuminated for low beam is illegal not to mention inconsiderate boarding on irresponsible – to get around it you would need 4 relays – 2 each side. Each fog light is switched independently by the LCM on a circuit that normally supplies 55w not 2x55w (that’s how the Range Rover is – I’m assuming the D4 is similar)

Hi Harlie,

That makes sense, if the lights are separately switched that means more wiring to do. Even four relays wouldn't cost much (three if you run a power lead for the driving lights back to the battery), but there would be that extra wiring to do.

My reluctance is attacking the under-dash area. Crook back makes that sort of thing a hassle, but worth a try, if I can work out how to remove the under-dash panels to get access. Any suggestions please?

Cheers,

Paul