AS-1785
Installation Guide
P. 21
Note on N/C systems:
There are different types of this system used by various vehicle manufactures, the following is used
to illustrate how these systems work in general.
Normally Closed (N/C) Systems:
In the previous two examples, the clutch was bypassed by engaging the clutch relay. In an N/C
system, a relay is also used to interrupt the starter wire. In order to bypass an N/C Clutch, one
must prevent the Clutch relay from engaging.
If the pedal is not pressed, when the Ignition Key is turned to the
START
position, the relay
energizes and interrupts the start wire. If the pedal is pressed, when the Ignition Key is turned to
the
START
position, the relay does not energize and the
START
signal reaches the Starter Motor.
In an N/C system, the supply wire is connected to the trigger wire of the relay at rest (Pedal not
pressed). When the Pedal is pressed, the connection is broken between the supply wire and the
trigger wire of the relay (disengaging the relay). To verify that you have a N/C system disconnect
the clutch switch, and the vehicle should start without the clutch pedal being pressed. When you
test the trigger wire with your logic probe, the trigger wire will test as 12 V or negative when the
pedal is not pressed, it should read as an open circuit ( or Float) when the pedal is pressed.
Please note:
Your probe may also show feed back from the other
end of the circuit. The Polarity of the Trigger wire
does not matter in this system: all you need to do in
order to bypass it is to use a relay to interrupt this
wire during remote starts.
Ignition-controlled Door Locks
This feature will
LOCK
all the Doors of the vehicle when the Brake Pedal is pressed while the
Ignition Key is in the
IGNITION ON (RUN)
position. The unit will
UNLOCK
all Doors when the Ignition Key
is turned back to the
OFF
position.
If
Ignition Lock Only
is selected, the system will only
LOCK
all Doors when the Brake Pedal is
pressed while the Ignition Key is in the
IGNITION ON (RUN)
position.
If option
Ignition Unlock Only
is selected, the system will
UNLOCK
all Doors when the key is turned
to the
OFF
position (provided that the Ignition key was in the
IGNITION ON (RUN)
position and that the
Brake Pedal was pressed at least once).
Secure Lock
This feature allows the Remote Car Starter to control certain OEM factory Alarm systems without
requiring the use of other wires for disarming the OEM Alarm. (Namely, this feature is designed for
OEM systems which use the factory Lock wire to
arm
the Alarm and the Unlock wire to
disarm
it.)
Standard Secure Lock
If this Option is selected, upon receiving a remote
START
signal, Secure Lock will
UNLOCK
the Doors
(disarming the factory Alarm); 1/2 sec. after remote start Secure Lock will
re-lock
the Doors. 4
seconds after shutdown, Secure Lock will
re-lock
all Doors (
arming
the system once again).
Please note
that most OEM systems will
not
rearm the Alarm while the Engine is running, but
will
still lock the Doors.
Smart Secure Lock
If the vehicle is initially locked, upon remote
START
the Remote Car Starter will trigger an
unlock
pulse
and a
disarm pulse
before the Engine is started. The Remote Car Starter will
LOCK
again
when the Engine is running, and
LOCK
once again 4 seconds after shut-down.
