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When the BLACK/WHITE wire is grounded, the remote start unit is operable. When this wire is open from
ground, the remote start is disable.
1. The optional "remote start toggle switch" can be added on to temporarily disable the Remote Start
Device, it can prevent the vehicle from being remote started accidentally. This feature is useful if the
vehicle is being serviced or stored in an enclosed area. To disable the remote start, move the optional
remote start enable toggle switch to the OFF position. To enable the remote start, move the optional
remote start enable toggle switch to the ON position.
2. If needed, This wire can connect to the PARK/NEUTRAL switch in the vehicle. (See the TESTING
YOUR INSTALLATION GUIDE)
IMPORTANT NOTE: Directly connect the BLACK/WHITE wire to the "GROUND" when this wire is
not used.
White / Blue wire – (-) Instant Start & Turn Off Input –
This wires activates and turns off the remote starter each time it sees a momentary ground signal.
Normally only used for testing during installation or when activating the module from an after-market
system.
White / Black wire – Negative Safety Shut Down Input –
The WHITE/BLACK wire provides an instant shutdown
for the remote start, whenever it is grounded. Connect
the wire to the hood pin switch previously installed. This
wire must be routed though a grommet in the firewall and
connected to the hood pin switch. If the pin switch is to
be used with an alarm system, connect this wire with
diode.
Important! This connection is a safety wire and must
be connected as shown and tested as specifiled. Failure
to do so may result in personal injury or property
damage. See detail of wiring in the following diagram.
This wire may also be used if the vehicle brake light
circuit switches ground to the brake lights. An isolation
diode must be used for ground switched brake light
circuits and must be connected to the output of the brake
switch.
White / Red wire – Tach. Signal Connection –
Note: You should connect this wire if you program the Start Feature
otherwise not to connect this wire and tap the end.
Note: No connection of this wire is required, if you use the voltage or timer checking type mode.
This input provides the remote start system with information about the engine's revolutions per minute
(RPM). It can be connected to the negative side of the coil in vehicle with conventional coils. In multi-coil
and high energy ignition system locating a proper signal may be more difficult. Once connected,
To test for a tach. wire, a multi-meter capable of test AC voltage must be used. The tach. wire will show
between 1V and 6V AC at idle, and will increase as engine RPM increases. In multi-coil ignition system,
the system can learn individual coil wire. Individual coil wires in a multi-coil ignition system will register
lower amounts of AC voltage. Also, if necessary, the system can use a fuel injector control wire for engine
speed sensing. Common locations for a tach. wire are the ignition coil itself, the back of the gauges,
engine computers, and automatic transmission computers.
IMPORTANT! Do not test tach. wires with a test light or logic probe. The vehicle will be damaged.
How to find a tachometer wire with your multi-meter
1. Set the ACV or AC voltage (12V or 20V is fine.)
2. Attach the (-) probe of the meter to chassis ground.
3. Start and run the vehicle.
4. Probe the wire you suspect of being the tach. wire with the red probe of the meter.
5. If this is the correct wire the meter will read between 1V and 6V.
IMPORTANT NOTE: You must program the "Tach Signal" before trying to remote start.
Yellow wire – (-) 200mA Ignition 3 Output –
This wire provides a 200mA (-) ground output that becomes active 4 seconds before the remote start unit
initialize, and remains grounded while running.
VS3725IN
– (-) Neutral Safety Switch Input –
(See Start Feature 9 Programming)
To: White/Black Wire /
Negative safety
Diode
Hood Pin Switch
To: White/Black Wire /
Negative safety
3
to "Engine checking TACH.",
7
FEBERARY/06/2006
Hood Pin Switch
To: Alarm instant
trigger Blue wire
Diode
To Vehicle
Diode
Brake Switch
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