N740T 09-04
N740T 09-04
Installation Guide
              Hornet®, Bitwriter™, Stealth Coding Technology™, Doubleguard®, ESP™, FailSafe®, Ghost Switch™,
              Learn Routine™, Nite-Lite®, Nuisance Prevention Circuitry®, NPC®, Revenger®, Silent Mode™, Soft
              Chirp®, Stinger®, Valet®, Vehicle Recovery System®, VRS®, and Warn Away® are all Trademarks or
              Registered Trademarks of Directed Electronics, Inc.
This wire supplies (-) ground as long as the system is armed. This output ceases as soon as the system is disarmed.
It can be used to turn on an optional sensor or to control an optional accessory, such as a window module or
pager.
    As shipped, this wire should be connected to the (+) parking light wire. If the light flash polarity jumper inside
    the control module is moved to the opposite position (see Internal Programming Jumper section of this guide),
    this wire supplies a (-) 200 mA output. This is suitable for driving (-) light control wires in Toyota, Lexus, BMW,
    some Mitsubishi, some Mazda, and other model cars.
            NOTE: For parking light circuits that draw 10 amps or more, the internal jumper must be switched
            to a (-) light flash output. (See the Internal Programming Jumper section of this guide.) P/N
            8617 or a standard automotive SPDT relay must be used on the H1/2 light flash output harness
            wire.
    This wire provides a (-) 200 mA output whenever the transmitter code controlling Channel 3 is received. This
    output will continue as long as that transmission is received. Use for options such as 551T Valet® Start system,
    529T or 530T power window controllers, etc.
            IMPORTANT! Never use this wire to drive anything except a relay or a low-current input! The
            transistorized output can only provide 200 mA of current, and connecting directly to a solenoid,
            motor, or other high-current device will cause it to fail.
Connect the H1/4 BLACK/WHITE wire to an optional relay for interior light illumination (pp/n 8617 or standard
automotive SPDT relay).
           IMPORTANT! This output is only intended to drive a relay. It cannot be connected directly to
           the domelight circuit, as the output is not able to support the current draw of one or more
           light bulbs.
Most vehicles use negative door trigger circuits. Connect the green wire to a wire which shows ground when any
door is opened. In vehicles with factory delays on the domelight circuit, there is usually a wire that is unaffected
by the delay circuitry. This wire will report Zone 3.
This wire will respond to a negative input with an instant trigger. Inputs shorter than 0.8 seconds will trigger
the Warn Away response, while triggers longer than 0.8 seconds will instantly trigger the full alarm cycle. This
wire is ideal for hood and trunk pins and will report on Zone 1. This wire can also be used with Directed
Electronics 506T Glass Breakage Sensor, as well as other Directed Electronics single stage sensors.
The H1/6 BLUE multiplex trigger wire can be used to shunt sensors during operation, using the auxiliary chan-
nels. When any of the auxiliary channels are transmitted, the H1/6 BLUE wire monitors for a ground. If ground
    This wire is used in vehicles that have a positive (+) switched dome light circuit. Connect the violet wire
    to a wire that shows (+)12V when any door is opened, and ground when the door is closed. This wire will report
    Zone 3.
    Remove any paint and connect this wire to bare metal, preferably with a factory bolt rather than your own screw.
    (Screws tend to either strip or loosen with time.) We recommend grounding all your components, including the
    siren, to the same point in the vehicle. See the following diagram.
    Connect this wire to an ignition source. This input must show (+)12V with the key in run position and during
    cranking. Make sure that this wire cannot be shorted to the chassis at any point. This wire will report Zone 5.
Connect this to the red wire of the siren. Connect the black wire of the siren to (-) chassis ground, preferably at
the same point you connect the control module’s black ground wire.
Before connecting this wire, remove the supplied fuse. Connect to the positive battery terminal or the constant
12V supply to the ignition switch.
           NOTE: Always use a fuse within 12 inches of the point you obtain (+)12V power. Do not use the
           15A fuse in the harness for this purpose. This fuse protects the module itself.
When the system receives the code controlling Channel 2, for longer than 1.5 seconds, the red/white wire will
supply an output as long as the transmission continues. This is often used to operate a trunk/hatch release or
other relay-driven function.
           IMPORTANT! Never use this wire to drive anything but a relay or a low-current input! The tran-
           sistorized output can only supply 200 mA of current. Connecting directly to a solenoid, motor,
           or other high-current device will cause it to fail.
    This security system can control two common power door lock types without any additional parts! With
    certain vehicles, or if an actuator is to be installed, either a 451M Door Lock Relay Satellite or two relays will
    be required.
      type A: positive (+) 12V pulses from the switch to the factory relays
    This security system can control Type A door locks directly, with no additional parts. The switch will have three
    wires on it, and one will test (+)12V constantly. The others will alternately pulse (+)12V when the switch is
    pressed to the lock or unlock position.
    If you cannot get to the switch, and you find a set of wires that pulse (+)12V alternately on lock and unlock,
    you must take care to ensure that it is not a Type C direct-wire system.
            IMPORTANT! If you mistake a Type C direct-wired system for a Type A positive-pulse system, the
            module will be damaged!
    Here is a test: Cut the wire which pulses (+)12V on lock, and then operate the switch to unlock.
    ■ If all doors unlock, the vehicle uses a Type A system.
    ■ If you lose all door lock operation in both directions, you are operating the master switch in a Type C system.
    ■ If one or more, but not all, motors stop operating, you have cut a wire leading directly to one or more motors.
Many domestically-made GM vehicles use Type A locks. However, many more GM vehicles are Type C than in pre-
vious years. The full-size pickups (1989-later), many of the S10 Blazers, the Corvette, '95 Cavalier/Sunfire 1993
and newer, Camaro/Firebird all use Type C door locks, and cannot be controlled without a 451M! Almost all domes-
tically-built Fords are Type C. Ford builds almost no Type A systems. Chrysler builds both Type A and Type C, so
test carefully.
IMPORTANT! Remember that the functions of these wires reverse between Type A and Type B!
     The switch will have three wires on it, and one wire will test ground all the time. One wire will pulse (-) when
     the switch locks the doors, and the other wire will pulse (-) when the switch unlocks the doors. This type of
     system is difficult to mistake for any other type.
IMPORTANT! Remember that the functions of these wires reverse between Type A and Type B!
It is critical to identify the proper wires and locate the master switch to interface properly. Locate wires that
show voltage on lock and unlock. Cut one of the suspect wires and check operation of the locks from both
switches. If one switch loses operation in both directions and the other switch operates in one direction only,
you have located one of the target wires. The switch that lost all operation is the master switch. If one switch
works both directions and the other switch works only one direction, you have a Type A system. If both switches
still operate, but one or more doors have stopped responding entirely, you have cut a motor lead. Reconnect it
and continue to test for another wire. Once both wires have been located and the master switch identified, cut
both wires and interface as shown below.
           IMPORTANT! If these are not connected properly, you will send (+) 12 volts directly to (-)
           ground, possibly damaging the alarm or the factory switch.
     Vehicles without factory power door locks require the installation of one actuator per door. This requires
     mounting the door lock actuator inside the door. Other vehicles may only require one actuator installed in the
     driver's door if all door locks are operated when the driver's lock is used. This type of installation is required to
     operate factory lock systems in Volvo (except 850), SAAB, and most Mazda, Isuzu and Subaru models. The fuse
     used on 12-volt inputs should be 7.5A per motor installed in the vehicle.
To interface, see diagram below. The system must be programmed for 3.5 second door lock pulses. (See
Operating Settings Remote Control Code Learning section of this guide.)
If one resistor is used in the door lock switch/key cylinder, the wire will pulse (+)12V in one direction and less
than (+)12V when operated in the opposite direction.
two-resistor type
If two resistors are used in the factory door lock switch/key cylinder, the switch/key cylinder will read less than
(+)12V in both directions.
To determine the resistor values, the door lock switch/key cylinder must be isolated from the factory door lock
system. For all testing, use a calibrated digital multimeter that is set to ohms.
1. Cut the output wire from the door lock switch/key cylinder in half.
2. Test with the meter from the switch side of the cut door lock switch/key cylinder wire to a reliable constant
     (+)12V source. Some good constant (+)12V references are the power input source to the door lock switch/key
     cylinder, the ignition switch power wire, or the (+) terminal of the battery.
3. Operate the door lock switch/key cylinder in both directions to determine the resistor values. If the multi-
     meter displays zero resistance in one direction, no resistor is needed for that direction.
4. Once the resistor value(s) is determined, refer to the wiring diagram for proper wiring.
single-resistor type
     If one resistor is used in the door lock switch/key cylinder, the wire will pulse ground in one direction and resis-
     tance to ground when operated in the opposite direction.
two-resistor type
     If two resistors are used in the factory door lock switch/key cylinder, the door lock switch/key cylinder will read
     resistance to ground in both directions.
     To determine the resistor values, the door lock switch/key cylinder must be isolated from the factory door lock
     system. For all testing, use a calibrated digital multimeter that is set to ohms.
     1. Cut the output wire from the door lock switch/key cylinder in half.
     2. Test with the meter from the switch side of the cut door lock switch/key cylinder wire to a reliable ground
         source. Some good ground references are the ground input source to the door lock switch/key cylinder or the
         battery ground.
     3. Operate the door lock switch/key cylinder in both directions to determine the resistor values. If the multi-
         meter displays zero resistance in one direction, no resistor is needed for that direction.
     4. Once the resistor value(s) is determined, refer to the wiring diagram for proper wiring.
Use one of these wire as a starter interrupt input and the other as a starter interrupt output wire
DIA-41
                                                                                                    TO CHANGE
                                                                                                      JUMPER
                                                                                                     SETTINGS
                                                                                          DRW-298
             NOTE: For parking light circuits that draw 10 amps or more, the internal jumper must be switched
             to a (-) light flash output. P/N 8617 or a standard automotive SPDT relay must be used on the
             H1/2 light flash output harness wire.
     There is a dual-stage impact sensor inside the control unit. Adjustments are made via the rotary control as indi-
     cated above. Since the impact sensor does not work well when mounted firmly to metal, we recommend against
           NOTE: When adjusting the sensor, it must be mounted in the same location where it will be
           after the installation is completed. Adjusting the sensor and then relocating the module
           requires readjustment.
The Valet®/Program button, plugged into the blue port, is used for programming. There is a basic sequence to
remember whenever programming this unit: Door, Key, Choose, Transmit and Release.
2. Key. Turn the ignition on. (The H1/9 YELLOW switched ignition input must be connected.)
                  3.    Select the receiver channel. Press and release the Valet®/Program switch the number of
                        times necessary to access the desired channel. Once you have selected a channel, press
                        and HOLD the Valet®/Program switch once more. The siren will chirp and the LED will blink
                        the number of times corresponding to the channel that has been accessed.
       NOTE: If adding a remote, a button must be taught to Channel 1 prior to programming other chan-
       nels.
            *NOTE: The Auto-learn function cannot be used to program an optional four-button trans-
            mitter; the channels must be taught to the transmitter individually. See Transmitter
            Configuration section of this guide for a description of Auto-learn transmitter programming.
            **NOTE: If any button from a known transmitter is programmed to Channel 8, all transmit-
            ters will be erased from memory and will revert to the default feature settings. (See Features
            Menu section of this guide.) This is useful in cases where one of the customer's transmitters
            is lost or stolen. Channel 8 will erase any lost or stolen transmitters from the system's
            memory and can also be used to start from scratch if the transmitter buttons were pro-
            grammed incorrectly.
                   4.   Press the transmitter button. While HOLDING the Valet®/Program switch, press the trans-
                        mitter button that you wish to assign to that channel. The unit will chirp indicating
                        successful programming. You cannot teach a transmitter button to the system more than once.
       NOTE: For Channel 7, press Button I (see Transmitter Configuration section of this guide) to
       program the Auto-learn Standard Configuration on a three-button transmitter.
You can advance from one channel to another by releasing the Valet® /Program button and tapping it to advance
channels and then HOLDING it. For example, if you want to program Channel Three after programming Channel
One, release the Valet®/Program button. Press it twice and release it to advance to Channel Three. Then press it once
more and HOLD it. The siren will chirp three times to confirm it is ready to receive the code from the transmitter.
One long chirp indicates that Code Learning has been exited.
transmitter configuration
The transmitters can be programmed with the Standard Configuration by using the Channel 7 Auto-learn** func-
tion in the Transmitter/Receiver Remote Control Code Learning. When programmed for Standard Configuration,
the 3-button transmitter buttons are assigned to the following functions:
           *NOTE: The Auto-learn function cannot be used to program an optional four-button transmit-
           ter.For a four-button transmitter, the different channels must be taught to the transmitter
           individually.
     The operating settings dictate how the unit operates. It is possible to access and change any of the feature set-
     tings using the Valet®/Program switch.
1. Open a door. (The GREEN wire, H1/5, or the VIOLET, H1/7 must be connected.)
                     2.    Ignition. Turn the ignition on, then back off. (The H1/9 YELLOW switched ignition input
                           must be connected.)
                      2.   Choose. Within 10 seconds, press and release the Valet®/Program switch the number of
                           times corresponding to the feature number you want to program (see the Features Menu
                           section of this guide). The LED ON settings listed in the Features Menu table are the factory
                           default settings.
                           Once the Valet/Program switch has been pressed and released the number of times corre-
                           sponding to the feature you wish to program, press it once more and HOLD it. After a
                           second, the LED will flash to indicate which feature you have accessed. For example, groups
                           of five flashes would indicate access to Feature 5. The siren will also chirp five times.
                      4.   Transmit. While HOLDING the Valet®/Program switch, you can select the desired feature
                           settings using the remote transmitter. As shipped, the unit is configured to the default LED
                           ON settings. Pressing Button I while HOLDING down the Valet/Program switch will program
                           the feature to the LED ON settings. The siren will chirp once to indicate the one-chirp
                           setting has been selected. Pressing Button II while HOLDING down the Valet/Program
                           switch will change the setting to the LED OFF setting. The siren will chirp twice indicating
                           that the LED OFF setting has been selected.
features menu
       FEATURE              DEFAULT LED ON SETTINGS                   LED OFF SETTINGS
       NUMBER               (PRESS TRANSMITTER BUTTON I)              (PRESS TRANSMITTER BUTTON II)
            1               Active Arming                             Passive Arming
            2               Confirmation Chirps ON                    Confirmation Chirps OFF
            3               Ignition-Controlled                       Ignition-controlled
                            Door Lock/Unlock ON                       Door Lock/Unlock OFF
            4               Active Locking                            Passive Locking
            5               0.8-second Door Lock Pulse Duration       3.5-second Door Lock Pulse Duration
            6               Double Pulse Unlock OFF                   Double Pulse Unlock ON
            7               Stealth Coding™ Technology ON                   Stealth Coding™ Technology OFF
            8               Door trigger error chirp ON                     Door trigger error chirp OFF
            9               Lock pulse Single                         Lock pulse Double
           10               Comfort closure OFF                       Comfort closure ON (20-seconds)
     2 CONFIRMATION CHIRPS ON/OFF: This feature controls the chirps that confirm the arming and disarming of the
     system.
     3 IGNITION-CONTROLLED DOOR LOCK/UNLOCK ON/OFF: When turned on, the doors will lock three seconds after
     the ignition is turned on and unlock when the ignition is turned off. If the ignition key is turned on while the
     vehicle door(s) are open, the door(s) will not lock.
     4 ACTIVE/PASSIVE LOCKING: If passive arming is selected in Feature 1, then the system can be programmed to
     either lock the doors when passive arming occurs, or only lock the doors when the system is armed with the
     transmitter. Active locking means the system will not lock the doors when it passively arms. Passive locking
     means that the system will lock the doors when it passively arms.
     5 DOOR LOCK PULSE DURATION: Some European vehicles, such as Mercedes-Benz and Audi, require longer lock
     and unlock pulses to operate the vacuum pump. Programming the system to provide 3.5 second pulses will
     accommodate door lock interface in these vehicles. The default setting is 0.8 second door lock pulses. See
     Mercedes-Benz and Audi - 1985 and Newer (Type E Door Locks section) diagram.
     6 DOUBLE PULSE UNLOCK OFF/ON: Some vehicles require two pulses on a single wire to unlock the doors. When
     the double pulse unlock feature is turned on, the H2/3 BLUE wire will supply two negative pulses instead of a
     single pulse. This makes it possible to directly interface with double pulse vehicles without any extra parts.
     7 STEALTH CODING™ TECHNOLOGY ON/OFF: This system features Stealth Coding™ Technology as an option. Stealth
     Coding™ Technology is a feature that uses a mathematical formula to change the system’s code each time the
     transmitter and receiver communicate. This makes the group of bits or "word" from the transmitter very long.
     The longer the word is, the easier it is to block its transmission to the unit. Disabling the Stealth Coding™
     Technology feature lets the receiver ignore the Stealth Coding™ Technology part of the transmitted word. As a
     result, the unit may have better range with Stealth Coding™ Technology off.
     8 DOOR SENSOR BYPASS CHIRP ON/OFF: This feature controls the error chirp that is generated if the system is
     armed with the door trigger active. This is useful in vehicles that have a long dome light delay after the door
     has been closed. If the system is armed before the dome light has turned off, the security system will generate
     the door trigger error chirp. If this error chirp is not desired, use this feature to disable the door open error chirp.
     If the bypass chirp is turned off, no bypass chirp will be generated, even if a door is accidentally left open.
10 Comfort closure feature: This feature is designed to integrate with vehicles that can close the power windows
and sunroof by holding the key in the driver door lock position, and will operate on both single input systems
and two pulses input dead bolt systems.
If programmed on the door lock output will activate the Comfort Close output for 20 seconds. This output will
begin 200mS after the final door lock output has completed regardless of the door lock programming.
If while the 20 second timer is active and closing the windows the user disarms the unit, the Comfort Close
output will immediately cease before the doors unlock.
The alarm system will not monitor the zone inputs for Bypass Notification, Warn away or Full trigger inputs until
after the 20 second timer has completed to avoid any false triggering of the system while the window are in
motion.
Disarming and rearming the system does not reset NPC™. The only way to reset NPC™ is for the 60 minutes to
pass, without a trigger, or for the ignition to be turned on. This allows the system to be repeatedly triggered,
disarmed and rearmed, and still allow NPC™ to bypass a faulty zone.
When disarming the system, 5 chirps indicate NPC is activated. The LED will report the zone that has been
bypassed. (See Table of Zones section of this guide.)
     troubleshooting
     ■ Door input does not immediately trigger full alarm. Instead, first I hear chirps for 3 seconds:
     That's how the progressive two-stage door input works! This is a feature of this system. This is an instant trigger,
     remember, since even if the door is instantly re-closed, the progression from chirps to constant siren will con-
     tinue.
     ■ Closing the door triggers the system, but opening the door does not:
     Have you correctly identified the type of door switch system? This often happens when the wrong door input has
     been used. (See H1/5 GREEN Door Trigger Input, Primary Harness Wire Connection Guide section of this guide.)
     ■ System will not passively arm until it is remotely armed and then disarmed:
     Are the door inputs connected? Is the H1/6 blue wire connected to the door trigger wire in the vehicle? Either
     the H1/5 green or the H1/7 violet should be used instead. (See Primary Harness Wire Connection Guide section
     of this guide.)
Is the yellow H1/9 ignition wire connected to true ignition? This wire must be powered in the run and start
positions in order to work properly.
                                                                                                                H3
                                                                                                                                      (These wires are interchangeable)             Starter Motor Relay
                                                                                                                                                         Black
                                                                                                                                           (Starter Interrupt Input/Output)         Key Side of Starter
                                                                                                                                                                                                                Plug-in Harness
                                                                                                                                                                                                               H3 Starter Interrupt
                                                                                                     H2   H1
                                                                                                                                      Valet Switch
                                                                                                                             LED
                                                                                     Green                              White
                                                                              (-) Lock, (+) Unlock             (Selectable Light Flash)
                                                                                                                                                                                (+/-) Vehicle
                                                  3-Pin, 2-Wire
                                                                                     Output                           (+/-) 10A
                                                                                                                                                                                Parking Light Wire
                                                                                                                      Black/White
                                                                                                                 (Interior Illumination)              Interior Light Illumination Relay
                                                                                                                       (-) 200 mA
                                                                                                                                                      (Optional)
                                                                                                                                                                                                                                        wiring quick reference guide
                                                                                                                        Green
                                                                                                                 (Door Trigger Input)                 Negative Door Pin Switch
                                                                                                                     (-) Zone #3
                                                                                                                          Blue
                                                                                                                  (Trunk/Hood Input)                  Negative Trunk Pin (Optional)
                                                                                                                      (-) Zone #1
                                                                                                                         Violet
                                                                                                                  (Door Trigger Input)
                                                                                                                                                                                                                         12-Pin H1
                                                                                                                       Black (-)
                                                                                                                   (Chassis Ground)                          Chassis Ground
                                                                                                                           Yellow                                                                      Black
                                                                                                                     (+) Ignition Input
                                                                                                                          Zone #5
                                                                                                                         Brown
                                                                                                                     (Siren output)                                           Red
                                                                                                                         (+) 1A
                                                                                                                                                         Fuse
                                                                                                                       Red (+)
                                                                                                                   (Constant Power)
DIA-349
                                                                                                                        Red/White
                                                                                                                  (-) 200 mA Channel 2                Factory Trunk Release
                                                                                                                      Auxiliary Output
29
                                                                                                                        (-) 200 mA                    Relay (0ptional)