Finding The Starter Wire - Radio Shack RS-4000 Installation Manual

49-840in.fm Page 9 Thursday, August 19, 1999 10:47 AM
2. Touch your meter or test light's
positive lead to a point on the
fuse block that has constant 12
volts. Use the other lead to probe
the control wire. Then open the
door. If the test light turns on or
the meter indicates 12 volts, your
vehicle has negative-switched
door switches. Go to Step 3.
Touch the negative lead to a
metal chassis part and the posi-
tive lead to the control wire. Then
open the door. If the test light
turns on or the meter indicates 12
volts, your vehicle has positive-
switched door switches. Go to
Step 3.
If you could not determine the
door switch power type, you
probably selected an incorrect
wire. Contact the Auto Alarm Hel-
pline at 1-800-598-2527 for assis-
tance.
3. Use masking tape to mark the
wire with its function (DOOR) and
switching type (+ SWITCHED or
– SWITCHED).
FINDING THE STARTER
WIRE
To install the starter-kill option, you
must find the starter wire (the wire
that goes from your vehicle's key
switch to the starter solenoid).
Follow these steps to find this wire.
1. Locate the group of wires going
from the back of your vehicle's
key switch toward the engine
compartment. (These wires are
routed along the top of the steer-
ing column in many vehicles.)
2. To determine the starter wire's
color, refer to your vehicle's ser-
vice manual, contact the vehicle
manufacturer, or call the Auto
Alarm Helpline at 1-800-598-
2527.
3. Once you select a wire that you
believe is the starter wire, touch
one lead from a 12-volt test light
or volt meter to a metal part of
your vehicle and probe the wire
with the other lead.
4. Start your vehicle. The test light
or volt meter should indicate 12-
volts only when you are cranking
the engine (not while it is run-
ning). If this is not the case,
repeat this procedure from Step
3, selecting another wire.
Need Help? Call 1-800-598-2527 9