fog light relay? - Honda Prelude Forum

Red4WS · 12-11-2002, 03:46 PM

How hard is it to make one of these? Its my understanding that i need one to hookup the fogs with the factory wires. But im getting the lights without relay or sub-harness. Anyway can I go to radio shaft and buy one? What will I need? I would just buy one but HParts.com said they no longer carry those parts. Thanks.

Zimmlude · 12-11-2002, 03:58 PM

Hey,

I used a standard relay on mine. You just need to find on that is normally open and only closes when the coil is energized.

You can use the stock wires under the dash and, guess what, the spade connectors that are inside the plastic thing will fit perfectly onto the terminals of the relay. This mean you won't have to splice any wires. Th plastic connector is easy enough to get off, just use a small screwdriver.

The wires go as follows:

There will be two red/yel connectors. These need to be connected across the coil inputs. I don't think it matters which one goes where.

The Blu/Red wire is the constant 12V source from the fuse box. This goes on one side of the switch terminals.

The Red/Grn wire goes on the other side of the terminal.

That should do ya.

HTH,

Absolut · 12-11-2002, 04:19 PM

FAQ this.

go pre · 12-11-2002, 09:20 PM

amazing, we had a thread about this about a week ago, where I already posted the wire pinouts for hooking up the relay.
http://preludeonline.com/showthread.php?threadid=95528

I guess that search function must be acting up again...

FGarcia1 · 12-12-2002, 10:13 PM

What happens if you have the relay (no subharness) and plug it straight into the wiring under the car? Just what does the subharness do?

Red4WS · 12-13-2002, 02:05 AM

Correct me if im wrong but its my understanding that the sub harness just connects the stuff together....to make it an easy plug and play. Please tell me if im wrong....or maybe i have to do a search for that answer go pre?

FGarcia1 · 12-13-2002, 08:58 AM

The Honda relay that comes with the fog lights can plug right into that loose set of wires under the car; that is, the subharness that typically connects the two together isn't there. I found a Prelude in the junkyard with its relay set up like that.

That's why I'm wondering if the subharness has any added functionality (maybe it has another fuse in there or something...?).