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Discussion Starter · #1 · (Edited)
I did some digging to figure out how this was done, since I don't
have an alarm module. It's in this thread so that people can find
it by searching.

If you want a full explanation of what most of the wires do with
the alarm module, then head to the MKIII Tech forum and look for
"Starter Kill Problem" authored by me. I explain it fairly well there.

This will just provide a simple procedure for thoese who want
to completly remove the alarm module; COMPLETLY. Here I explain
how to BYPASS the starter kill that is related to the alarm module
so that you can start the car after it's disconnected.

NOTICE: Not all MKIII Cars are the same! I am not aware or not
if some of the alarm module systems (or theft deterrent systems)
are tied in with the power windows or power doorlocks or not.
Your BEST bet is to visit your toyota dealer and pick up a electrical
wiring book on your year model car. It may be just the MK4, but
on some vehicles, removing the alarm module could render
your power windows and doors useless. make sure it doesn't!

Now, I've used two graphics from the wiring diagrams that i've
been provided, one is from a 1990 MK3, the other is from an
unknown year model MK3. These graphics are provided here:;postid=1280269

Now, here's the procedure. According to the diagram, the wire
we are looking for is color coded Blue with an Orange stripe (L-O)
L for blue, O for orange.

Once you have located your alarm module (I don't know where
yours is) find this Blue with Orange wire. You have two options,
you can splice this wire, with an alagator clip, and connect the
other end to a suitable ground point; OR you can cut this wire,
strip a little off the end, and connect it to a ground point.

IF YOU CUT IT: do not cut it right next to the module, in the
future you may want to reconnect it, if you don't leave enough
slack on both ends, it will be next to impossible to reconnect it
to the module.

tips for a good ground point: It must not have any paint on the
ground point. IE you want to connect it directly to metal. The
preferred method is to attach the wire to a small connector (such
as the ones in the middle of this image: )

and mount it between a clean metal spot and a screw for a
permanent connection. you can get a box of thoese connectors
for $3 at radioshack. They're crimp so you'll need to mash them
with a pair of plyers or something to keep the wire in them.

What grounding this wire does: well this wire is from the starter
relay, the last object in a long circuit that starts at the battery
and makes it's first stop at the ignition switch. when you turn
your ignition switch to 'start' you're applying power to this wire,
it doesn't go directly to the starter, but it closes the circuit on
a magnetic switch called a starter relay. two wires from the same
location power both sides of the starter relay. so when you turn
your key to start, the first side of the relay draws the magnetic
switch of the opposite side of the relay closed, it provides power
to the starter solenoid which closes a circuit on the battery and
turns the starter over. When your alarm module is activated, it
does not ground out this wire, which does not allow the starter
to turn over. however, when your alarm module is deactivated,
it grounds out this wire, providing power to the starter.

I'm not really reccomending this if you have a functioning alarm
module; this is a last resort, and it does not disable the alarm
horn. it only disables the starter kill, which preety much makes
the alarm useless other than being a noise maker.

Do this at your own risk, not mine.

hope it helps.
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