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Connect the starter disable socket's Red wire to the ignition switch side, and its
White wire to the starter solenoid side. Be sure that good, solid electrical connec-
tions are made as this generally is a high amperage circuit. Connect the security
system's Orange wire to the Orange wire of the starter disable socket. Note: If
the Orange wire touches 12 volts positive directly or has more than a 500ma
ground load, the circuit will be damaged.
Brown Wire - (Audible Output): The Brown wire is the system’s audible output.
It is capable of being configured for 12 Volts or Negative output, and it can
be programmed to be a steady output or pulsed output. Conf12 Volts it is
a high amperage output to drive an electronic siren; configured Negative it is a low
amperage output to operate a relay to sound the vehicle’s existing horn. Typi-
cally, the former configuration is programmed as steady, and the later configura-
tion is programmed as pulsed.
Using The Siren: Confirm that the control module is configured for its “as shipped”
configuration of +12 Volts. The top of the control module has an access panel
marked “(-) Horn” on its left side and “(+) Siren” on its right side. Open this panel
by sliding it to the right, and pivoting it down. Below is a 3-pin standup; ensure that
the attached jumper is installed on the right two pins, in the “(+)” position. Replace
the access panel. This standup and jumper are shown in the Wiring Diagram
Overview on pages 24-25.
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Mounting The Siren: Find a location in the engine compartment away from the
extreme heat of the engine and manifold. A suitable location will offer a firm
mounting surface, will also allow sound dispersion out of the engine compartment,
and not be accessible to a thief. The last point is most important; it is advisable to
seek a location for the siren which requires removal of engine compartment
components, the battery, for example, to access the siren. This greatly reduces the
“defeatability” of the security system. The siren must be pointed downward to avoid
moisture collecting inside it and to enhance sound dispersal. The siren’s wires
should be carefully routed so as to be not easily detectable, and to ensure that the
wires will not interfere with any moving parts in the engine compartment or
underdash areas.
CONNECTION: The Brown wire must be connected directly to the siren's Red
wire, and the siren's Black wire is connected to - Ground, which may be to any
clean, bare metal point of the vehicle's chassis. The use of an existing grounding
point is a good location. Do not configure the control module’s 3-pin standup
jumper for “(-) Horn” and connect the Brown wire to the siren’s Black wire.
Using The Vehicle’s Existing Horn: This will require that the control module be
configured for “(-) Horn” and that programmable feature #7 be changed from
“Steady Siren” to “Pulsed Horn. To change the Brown wire’s polarity from the “as
shipped” configuration of +12 Volts, locate the access panel marked “(-) Horn” on
its left side and “(+) Siren” on its right side on top of the control module. Open this
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panel by sliding it to the right, and pivoting it down. Below is a 3-pin standup;
remove the attached jumper from the right two pins (the “(+)” position), and rein-
stall it onto the two left pins (the “(-)” position). Replace the access panel. This
standup and jumper are shown in the Wiring Diagram Overview on pages 24-25.
Upon completion of all wiring connections, consult the Owner’s Manual and pro-
gram feature #7 for “Pulsed Horn” audible output setting.
CONNECTION: The Brown wire may be connected directly to the vehicle's horn
switch wire, provided the circuit operates with .25 Amp of current or less. First,
ensure that the vehicle’s horn operates with the ignition switch “off”; if not, an
optional relay and the “direct to horn” method is needed. If the horn sounds when
the ignition if “off”, the next step is to locate the vehicle’s horn switch wire to
determine the presence of an existing horn relay.
CAUTION! Avoid the airbag
circuit! The target wire is typically found around the steering column; the correct
wire will show +12 Volts normally, and no voltage when the horn is being sounded.
Once the vehicle's horn wire is identified, the electrical switching load must be
determined.
The most direct method is to cut the wire and measure the switching load with a
digital multimeter (DMM). Connect the meter’s Black lead to the cut wire from the
switch, and its Red lead to the cut wire to the horn. Set the meter to its highest
scale first, then press the horn switch to obtain the switching load reading. If the
results are a switching load of .25 Amp (250 milliamperes, or mA), then the control
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module’s Brown wire may be connected directly to the vehicle’s horn switch wire.
Other alternative testing methods include disconnecting the horns, then operate
the horn switch. Typically, a "clicking" sound from the vehicle can heard as the
horn button is pressed, and released, which confirms the presence of an existing
horn relay. Yet another alternative is to consult a wiring schematic of the vehicle
in question to determine if an existing horn relay is present. The least desirable
testing method is the use of a st12 Volt test light.
CAUTION! Avoid the
airbag circuit! This is one of the few uses left for a standard test light in a modern
To vehicle's
horn wire.
30
86 87a 85
87
Brown wire
from control
module.
Optional Relay wiring diagram.
To
+12 Volts.
Connect to
+12 Volts or
- Ground as needed
to operate the horn.
