preludeguy89

THIS WILL WORK FOR GENERATIONS 3RD to 5TH

The 2 "Blue-Yellow" wire connections connect to those
wires on the back of the signal relay. It should be
by the fusebox or behind the bonnet release. 2 Diodes
(12v rating from an electronics store. About $1 for
2) connect in line with the connections to the relay.

You need 3 automotive relays (get them at an
Automotive parts store) and the numbers corrospond to
that on the relays (they should be next to each pin).

The wires & diodes connecting to the 2 "Blue-Yellow"
wires connect to pin 86, "To Ignition On" connect to
pin 30 and "ground" connect ot pin 85.
This relay can be mounted under the dash for easier
connection.


The 2 other relays can go on each side of the bumper
and connect as follows..

1) On the 2 relays, connect pin 86 together and then
connect that wire to pin 87 on the relay under the
dash.
2) Take the + wire out of the plug that plugs into
each light lense and connect pin 30 of each relay to
the wire.
3) Connect pin 87A from each relay and connect that
wire to the place where you took the stock wire out
from that is now connected to pin 30. (plug it into
the plug in place of the stock wire).
4) Connect pin 85 to Ground
5) connect pin 87 of both relays together then connect
both to the battery + positive terminal.

So, when it's all done when the key is on, the front
signals will light up constant but when you indicate
say left, both will go out then signal normally. When
finished, both will turn back on.

The diodes are used because there is one "Blue-Yellow"
wire for the left and right and if it wasnt isolated,
both sides will turn on. The "Blue-Yellow" wire gets
constant 12V when you signal left or right (and either
one or the other wire) but when you use the hazards,
both get constant 12V. Also, the lights will function
normally if the ignition is off.


Just connect the "Ignition On" connection to the
parking light switch instead of the ignition so they turn on with the parking lights.

The signal relay is about twice the size of the other
relays. You can find it by turning on your hazards
and then listening and touching each relay until you
fell it clicking which would indicate that it's that
one



Thanks to XtremeluderSI for this great write up

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PreludeNYC

......Nice write up someone should FAQ it!

-Jose

KRAZ4U

i don't get it,i'm pretty sure i'm not the only one,but whats this for?

BlackSpeedLuda

I'm also not understanding what this does for your car. Sounds like fun to do and such, but.......

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'91 Si ALB

-Custom Cleared sidemarkers, front and back blinkers
-Battery relocated to trunk
-Magnaflow dual tip muffler

Kaspin

It looks like it'll light up the turn signals to be always on when you have the parking/headlights on.

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preludeguy89

Yup...
it is so it matches that of a teggie... all the blinker lights are on when the parking lights are on.

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LUDENNYC

ok does anyone have the write up to make my blinkers blink anternating?

AgentPrelude

Thanks for the write-up. Been looking to do this to my 3rd gen.

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-Garrett Rudkin
Prelude junky since March of '97. Proud hp.com and PO.com member.
Proud owner of a 1987 and 1991 Prelude Si.

PreludeChick89

me 2 can't wait to finish it

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