12 Volt signal wire

[electric130]

Originally Posted by 04 Honda Civic That has a blue wire coming off the switch? Is that an OEM diagram? I have no blue wire chilton, haynes, and honda diagrams all show a blue wire.

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[gearbox]

also if anyone is thinking of doing this for a coupe, its a bit different. using blue wire is not correct, that will keep the fogs on all the time like a DRL even if switch is off.

[04 Honda Civic]

Yea I been using my Chiltons and Haynes since they are the same diagram..this is weird..

[electric130]

did you ohm through the switch to find out what wires are the contacts?

[04 Honda Civic]

I need to look for continuity from the red/yellow to the rest?

[electric130]

don't worry about the color. unplug the switch and check it that way.

[04 Honda Civic]

Ok here is what I have:

Red/Yellow: To red white I have 2 ohms lights off, 0 ohms with park lights on, no continuity with headlights on.

Red/Black: I have cont to red yellow and solid red 2 ohms as well but no cont with headlights on, also have cont to red white with no resistance

Red/Blue: has no continuity to anything

Solid Red: red white 4 ohms with lights off, 0 ohms with park lights and headlights no ohms but continuity.

[electric130]

u checking with power on or off?

[04 Honda Civic]

both..I check with headlight on park lights on and off as well with all wires.

[electric130]

you can't do that. to take resistance readings, at least one side of the circuit must be isolated, as well as you can damage your multimeter by taking resistance readings with the power on. that's why i said to disconnect the switch and take readings at the terminals of the switch.

[04 Honda Civic]

What switch are you talking about the fog switch or headlight switch?

[electric130]

the fog light switch

[04 Honda Civic]

yea it was disconnected. When I say that the switch was on I mean the park lights and headlights. Sorry for the confusion

[electric130]

that still doesn't make sense. if the fog light switch was unplugged, sitting in your hand, and you're reading at the terminals inside the back of the switch, operating the headlight switch would not change any readings. you should have terminal markings such as numbers or letters. there should be no wires or colors at all.

[04 Honda Civic]

I cant read..I was testing the connector not the switch.. Ill post back with them in a few minutes.