JDM Fogs

andyconnolly · Post by **andyconnolly** » Mon Nov 25, 2013 12:37 am

Right my fog lights have never been used since ive had the car and infact the harnesses have actually been hanging under the splitter of the car. Dont think the previous owner used them either by the looks of things.
With the weather getting worse and the nights getting darker thought it would be time to sort these.
What bulbs do they take ? (as far as i know its still the original factory fitted jdm ones). Seen something about them being H3 or H3C ??
Is there any common problems them ?
A previous owner has wired a rear fog light into the rear driverside light cluster, this shouldnt be affecting the front should it ?

on night shift tonight but if its dry tomorrow and not as cold as it has been i might get the chance to look.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Mon Nov 25, 2013 1:49 am

Shouldn't be affecting the front, no. Unless they used the front fog switch to run the rear foglight instead?

andyconnolly · Post by **andyconnolly** » Mon Nov 25, 2013 1:56 am

I think it is the front fog switch they've used
Need to dig out my multimeter I think and put my apprentice skills to the test lol
Even at that should be able to run both off one switch ?

Post by **Merlin** » Mon Nov 25, 2013 9:12 am

The wiring is quite easy to figure out. The switch activates a relay in the foot well fusebox. The relay then powers the fogs.

andyconnolly · Post by **andyconnolly** » Mon Nov 25, 2013 4:07 pm

Merlin wrote:The wiring is quite easy to figure out. The switch activates a relay in the foot well fusebox. The relay then powers the fogs.

I had a wee look at your write up

Post by **Merlin** » Mon Nov 25, 2013 4:44 pm

That was all custom wiring. You should have the stock wiring in place

andyconnolly · Post by **andyconnolly** » Mon Nov 25, 2013 6:26 pm

Yea the stock wiring is there the plugs are just soaking and no bulbs in the lights
Is it H3's they take ?

mills · Post by **mills** » Mon Nov 25, 2013 7:08 pm

My rear fog is wired into the front fog switch so both come on at the same time with the 1 switch

Can't remember what bulbs they take though

if I get chance tomorrow, I'll take a look and let you know bud

nitin_s1 · Post by **nitin_s1** » Mon Nov 25, 2013 7:09 pm

I'm 90% sure it's H3.

mills · Post by **mills** » Mon Nov 25, 2013 7:11 pm

A quick search on prelude power says H3 for oem fogs, and H3C for replica fogs