Thread: Spotlight wiring

Hi Kevin and as Gary posted, the your thinner wire is fine.

I used the thicker wire in the diagrams as this is a fairly common size wire, but you can easily go to .5mm2 and all will be fine.

Your relay only draws about 150ma and I don’t think your light would draw all that much more and even if it does, the relay will work from as low as 9v so again, you should be fine.

Originally Posted by SteveFarmer

HI

The switch we arrived at was STC8889 - Auxiliary lighting switch, which may not be the same as the fog light switch which is listed as AMR3711.

So it seems there are two different switches

Looks like the ride inhibit switch with the fascia changed might be the easiest way to go.

Steve

Surely the easiest option would be to spend $20-25 & get the right switch to start with - STC8889.
Google the part number & you'll find several suppliers for the switch. You could even try a local LR dealer (which is where I bought mine from a few years ago).

Since you are only allowed to run spotlights with high beam anyway why not just take you feed to activate your relay from the light itself and don't bother with a switch on the dash. Much easier to put a little switch to isolate your spots if you don't want them on under the bonnet rather than having to touch the inside of the car?

The HID driving lights were all wired up using the Narva relay(diode protected) as per the circuit diagram and as soon as the battery was connnected, the main beam light on the right hand head light where I had drawn power from to connect to terminal 86 of the relay, lite up straight away, even though no lights were turned on and the switch was still in the off position. I had placed the switch between terminal 85 and the earth. So I moved the switch to between the main beam pick up and terminal 86. This stopped the main beam light coming on, but as soon as the switch was turned on (with no lights on), the driving lights came on but when I could not turn them off even when the switch was turned off.
I could not make the lights do what they were supposed to do.
I purchased a standard four pin relay and installed it and it all works fine.
All that I can think is that the diode protected relay was not the correct one.
Just thought I would let you all know that the Narva diode protected relay was not the way to go - well not the one I had.
Regards
Kev