19 replies to this topic

[woodsy483]

Someone kindly posted a link up the other day in another topic about wiring in fog's/spots

This is the link

http://www.halfords....nstructions.pdf

I'm in the middle of doing my wiring so found this useful,

I have already bought a few two terminal switches (on/off) but in this diagram they have three terminal switches with one being an earth, why have they included an earth on the switch is this really necessary, I cant see any reason why it would be needed my switches are plastic rocker type??

[lrostoke]

If its a fog light switch they have probably shown a switch with built in warning light. So needs an earth to illuminate the light

Just read the part list at top of page

An illuminated rocker switch (optional for driving lamps)

Edited by lrostoke, 21 June 2011 - 12:00 PM.

[Bungle]

if your fitting fog lights you must have some sort of light to tell you they are on

[woodsy483]

if your fitting fog lights you must have some sort of light to tell you they are on

Is this a legality or something you think I would need to save me getting stopped if I mistakenly put them on

[woodsy483]

If its a fog light switch they have probably shown a switch with built in warning light. So needs an earth to illuminate the light

Just read the part list at top of page

An illuminated rocker switch (optional for driving lamps)

Thanks, that makes sense now, the earth is for the filament

[dklawson]

if your fitting fog lights you must have some sort of light to tell you they are on

Really? All that extra light in front of the car isn't enough indication? No reason to even turn them on during daylight hours.

[lrostoke]

Could be more for the rear Foglight Doug

[dklawson]

I never understood the rear fog light. I've seen pictures of them on U.K. cars. Why a rear fog light anyway? How fast and how far do you guys drive in reverse?

If the rear fog is for "backing up", surely it would be wired in parallel to the reverse light and should not have its own switch. If the rear fog light has its own switch, it sounds like it's more of a weapon against people following too close at night.

[lrostoke]

No its red a rear fog light, supposed to be so cars following can see you easier in the fog... Similar to the red light F1 racing cars have fitted, except it doesn't flash

I think the boot mounted reverse light is what you are thinking of, guess thats more a style thing these days but probably came about when there wasn't a reversing light fitted

Used to have one on my Landrover mounted on top of body but shining down so it lit up the road just behind me, was pretty useful

Edited by lrostoke, 21 June 2011 - 01:42 PM.

[woodsy483]

http://www.halfords....nstructions.pdf



Am I right in thinking this diagram only allows for the manual switching on of the lamps via the switch. How do I add in the facility for the driving lamps to flash with full beam.

Also does anyone know what colour the headlamp main beam circuit wire is I've followed the haynes diagram and think its red/green but this colour is also used on alot of the other lighting cct's

[Bungle]

if your fitting fog lights you must have some sort of light to tell you they are on

Really? All that extra light in front of the car isn't enough indication? No reason to even turn them on during daylight hours.

i can tell you don't do much driving in the UK Doug

if your under the age of 20 and drive a saxo/106 etc and it looks like it's crashed through the ripspeed section of halfords then you must drive around with your fog lights on no matter what the weather of time of day

[Bungle]

http://www.halfords....nstructions.pdf



Am I right in thinking this diagram only allows for the manual switching on of the lamps via the switch. How do I add in the facility for the driving lamps to flash with full beam.

Also does anyone know what colour the headlamp main beam circuit wire is I've followed the haynes diagram and think its red/green but this colour is also used on alot of the other lighting cct's

there are many topics on this already on TMF how you didn't manage to find them is beyond me

are you fitting fog or spot lights ?

as the lights are to be used for different things and must be wired differently

[lrostoke]

That diagrams does show it with the feed from the Main Beam circuit to the switch. That circuit will also flash the driving lights with the Main beam flash as long as the switch is on.

Main beam wiring is blue/white.

[woodsy483]

http://www.halfords....nstructions.pdf



Am I right in thinking this diagram only allows for the manual switching on of the lamps via the switch. How do I add in the facility for the driving lamps to flash with full beam.

Also does anyone know what colour the headlamp main beam circuit wire is I've followed the haynes diagram and think its red/green but this colour is also used on alot of the other lighting cct's

there are many topics on this already on TMF how you didn't manage to find them is beyond me

are you fitting fog or spot lights ?

as the lights are to be used for different things and must be wired differently

It must be beyond you Bungle as I did search, thats where I initially got the link from.

I'm fitting 4 spots, 2 fog and 2 normal. I'am aware they are 2 differant circuits but both have the switch wired the same. It is only the headlight/driving lamps I'm concerned with when operating full beam.

There are loads of topics on this subject but none ever seem to get a completed answer as people always say use the search feature.

The search feature is'nt all that good unless you use the advanced search and search by title, it should be set to default so the search by title box is ticked rather than whole posts then people would find what they're looking for easier without getting a thousand irrelevant topics.

I also find its easier to search via google then all the forum's topic titles come up sorted by relevance if you put in the correct key word

[dklawson]

i can tell you don't do much driving in the UK Doug

Very true. I haven't even been to the U.K. in over 20 years. It sounds like your youths outfit and drive their rice-racers about the same as kids over here.

Steve, thanks for clarifying the rear light thing. You are right that I was thinking of the rear lamp on the boot lid.

Back on topic.