Directed Electronics 425 Series User manual

G425A
Model 425
Owner’s Guide

i
©1999 Directed Electronics, Inc.
Limited Lifetime
Consumer Warranty
Directed Electronics, Inc. ("DEI®") promises to the original purchaser to repair or re-
place with a comparable reconditioned model any DEI unit (hereafter the "unit"), excluding
without limitation the siren, the remote transmitters, the associated sensors and ac-
cessories, which proves to be defective in workmanship or material under reasonable
use during the lifetime of the vehicle provided the following conditions are met: the
unit was professionally installed and serviced by an authorized DEI dealer; the unit will
be professionally reinstalled in the vehicle in which it was originally installed by an
authorized DEI dealer; and the unit is returned to DEI, shipping prepaid with a legi-
ble copy of the bill of sale or other dated proof of purchase bearing the following
information: consumer's name, telephone number and address; the authorized dealers
name, telephone number and address; complete product description, including acces-
sories; the year, make and model of the vehicle; vehicle license number and vehicle
identification number. All components other than the unit, including without limita-
tion the siren, the remote transmitters and the associated sensors and accessories, carry
a one-year warranty from the date of purchase of the same. This warranty is non-trans-
ferable and is automatically void if: the original purchaser has not completed the warranty
card and mailed it within ten (10) days of the date of purchase to the address listed
on the card; the unit's date code or serial number is defaced, missing or altered; the
unit has been modified or used in a manner contrary to its intended purpose; the unit
has been damaged by accident, unreasonable use, neglect, improper service, installa-
tion or other causes not arising out of defects in materials or construction. The
warranty does not cover damage to the unit caused by installation or removal of the
unit. DEI, in its sole discretion, will determine what constitutes excessive damage and
may refuse the return of any unit with excessive damage. TO THE MAXIMUM EXTENT
ALLOWED BY LAW, ALL WARRANTIES, INCLUDING BUT NOT LIMITED TO EXPRESS WAR-
RANTY, IMPLIED WARRANTY, WARRANTY OF MERCHANTABILITY, FITNESS FOR
PARTICULAR PURPOSE AND WARRANTY OF NON-INFRINGEMENT OF INTELLECTUAL
PROPERTY, ARE EXPRESSLY EXCLUDED; AND DEI NEITHER ASSUMES NOR AUTHORIZES
ANY PERSON OR ENTITY TO ASSUME FOR IT ANY DUTY, OBLIGATION OR LIABILITY
IN CONNECTION WITH ITS PRODUCTS. DEI DISCLAIMS AND HAS ABSOLUTELY NO LI-
ABILITY FOR ANY AND ALL ACTS OF THIRD PARTIES INCLUDING ITS AUTHORIZED
DEALERS OR INSTALLERS. DEI SECURITY SYSTEMS, INCLUDING THIS UNIT, ARE DE-
TERRENTS AGAINST POSSIBLE THEFT. DEI IS NOT OFFERING A GUARANTEE OR
INSURANCE AGAINST VANDALISM, DAMAGE OR THEFT OF THE AUTOMOBILE, ITS PARTS
OR CONTENTS; AND HEREBY EXPRESSLY DISCLAIMS ANY LIABILITY WHATSOEVER,
INCLUDING WITHOUT LIMITATION, LIABILITY FOR THEFT, DAMAGE AND/OR VANDALISM.
THIS WARRANTY DOES NOT COVER LABOR COSTS FOR MAINTENANCE, REMOVAL OR

ii ©1999 Directed Electronics, Inc.
REINSTALLATION OF THE UNIT OR ANY CONSEQUENTIAL DAMAGES OF ANY KIND. IN
THE EVENT OF A CLAIM OR A DISPUTE INVOLVING DEI OR ITS SUBSIDIARY, THE PROPER
VENUE SHALL BE SAN DIEGO COUNTY IN THE STATE OF CALIFORNIA. CALIFORNIA
STATE LAWS AND APPLICABLE FEDERAL LAWS SHALL APPLY AND GOVERN THE DIS-
PUTE. THE MAXIMUM RECOVERY UNDER ANY CLAIM AGAINST DEI SHALL BE STRICTLY
LIMITED TO THE AUTHORIZED DEI DEALER'S PURCHASE PRICE OF THE UNIT. DEI SHALL
NOT BE RESPONSIBLE FOR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIM-
ITED TO, ANY CONSEQUENTIAL DAMAGES, INCIDENTAL DAMAGES, DAMAGES FOR THE
LOSS OF TIME, LOSS OF EARNINGS, COMMERCIAL LOSS, LOSS OF ECONOMIC OPPORTUNITY
AND THE LIKE. NOTWITHSTANDING THE ABOVE, THE MANUFACTURER DOES OFFER
A LIMITED WARRANTY TO REPLACE OR REPAIR THE CONTROL MODULE AS DESCRIBED
ABOVE. Some states do not allow limitations on how long an implied warranty will last
or the exclusion or limitation of incidental or consequential damages. This warranty
gives you specific legal rights and you may also have other rights that vary from State
to State.
This product may be covered by a Guaranteed Protection Plan ("GPP"). See your au-
thorized DEI dealer for details of the plan or call DEI Customer Service at 1-800-876-0800.
DEI security systems, including this unit, are deterrents against possible theft. DEI is
not offering a guarantee or insurance against vandalism, damage or theft of the auto-
mobile, its parts or contents; and hereby expressly disclaims any liability whatsoever, including
without limitation, liability for theft, damage and/or vandalism. DEI does not and has
not authorized any person or entity to create for it any other obligation, promise, duty
or obligation in connection with this security system.
Make sure you have all of the following information from your dealer:
A clear copy of the sales receipt, showing the following:
■Date of purchase
■Your full name and address
■Authorized dealer's company name and address
■Type of alarm installed
■Year, make, model and color of the automobile
■Automobile license number
■Vehicle identification number
■All security options installed on automobile
■Installation receipts

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©1999 Directed Electronics, Inc.
Table of Contents
Limited Lifetime Consumer Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
What Is Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Important Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Your Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FCC/ID Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Transmitter Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Standard Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Using Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Arming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Disarming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Disarming Without a Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Silent Mode™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Panic Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Valet Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Valet®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Nuisance Prevention®Circuitry (NPC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Arming Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Disarming Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table of Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Code Hopping™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Owner Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Rapid Resume Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Multi-Vehicle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Installation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Programming Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Security & Convenience Expansions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Glossary Of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Quick Reference Guide (Removable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2©1999 Directed Electronics, Inc.
Standard Configuration

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©1999 Directed Electronics, Inc.
What is Included
■A control module
■Two four-button remote transmitters
■A Stinger®DoubleGuard®dual-stage shock sensor (on-board the
control module)
■A Revenger®Soft Chirp®six-tone programmable siren
■A red status LED indicator light
■A push-button Valet®switch
Important Information
By carefully reading this guide prior to using your system, you will
maximize the use of this system and its features. This system has
been designed to provide years of trouble-free operation. Due to its
complexity, it must be installed by an authorized dealer only. In-
stallation of this product by anyone other than an authorized dealer
voids the warranty. All dealers are provided with preprinted dealer
certificates to verify that they are authorized.
This system does not require any specific maintenance. Each remote
is powered by a miniature 3-volt battery, type 2032, that lasts ap-
proximately one year under normal use. When the battery weakens,
the LED on the remote will dim and flash quickly whenever it is used.
System Maintenance

4©1999 Directed Electronics, Inc.
Your warranty card must be returned and the barcode serial number
must not be removed. If the warranty card is not returned, you do
not have a warranty. It is also necessary to keep your proof of pur-
chase, which reflects that the product was installed by an authorized
dealer. Make sure you receive the warranty card from your dealer.
This device complies with part 15 of FCC rules. Operation is subject
to the following two conditions: (1) This device may not cause harm-
ful interference, and (2) This device must accept any interference
received, including interference that may cause undesired operation.
Caution: Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s authority
to operate this device.
Transmitter Functions
Your vehicle security system is programmable, making it possible to
assign any button on the remote to any specific receiver function.
The transmitter initially comes programmed with the Standard Con-
figuration, but may also be customized by an authorized dealer. Unless
otherwise specified, all instructions in this manual assume opera-
tion using the Standard Configuration.
FCC/ID Notice
Your Warranty

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©1999 Directed Electronics, Inc.
Your vehicle security system is programmable, making it possible
to assign any button on the remote transmitter to any specific
receiver function. The remote transmitter initially comes pro-
grammed with the Standard Configuration, but may also be
customized by an authorized dealer. Unless otherwise specified,
all instructions in this owner’s guide assume operation using the
Standard Configuration.
Button
The arming and locking functions are controlled by pressing this but-
ton for one second.
Button
The disarming and unlocking functions are controlled by pressing
this button for one second.
Button
Silent Mode™and an optional auxiliary function are controlled by press-
ing this button. Silent Mode™works by pressing for less than
one second. An optional auxiliary function, such as trunk release,
is controlled by pressing and holding for 1.5 seconds.
The auxiliary output controls _____________________________.
Button
Panic Mode is activated by pressing and holding for one
second.
Standard Configuration

6©1999 Directed Electronics, Inc.
and Buttons
An optional auxiliary convenience or expansion function that you
have added to your system can be activated by pressing these but-
tons simultaneously.
The auxiliary output controls _____________________________.
Using Your System
The buttons described in all instructions in this manual correspond
to the standard configuration, unless otherwise specified.
You can arm the security system and lock your vehicle’s doors (if
connected) by pressing for one second. When the system arms,
you will hear a short siren sound (chirp) and the parking lights will
flash once. Once armed, the status LED will flash twice per second
to indicate that the system is actively protecting your vehicle. If
you hear a second chirp after arming and notice that the status LED
is flashing in a grouped pattern, this signals Bypass Notification,
which is described in the Diagnostics section of this manual.
The system can also be programmed to arm itself automatically 30
seconds after the ignition is turned off and the last vehicle door has
been closed (called Passive Arming). Once the 30-second countdown
period initiates, the status LED will flash twice as fast as it does
when the system is armed. After 20 seconds, the siren will chirp once
Arming

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©1999 Directed Electronics, Inc.
to warn that the system has only 10 seconds remaining prior to arm-
ing. The system is not actually armed at this point. The system arms
itself at the 30-second mark. At this point, the vehicle doors will
also lock (if programmed for Passive Locking) and the status LED
will begin flashing twice per second to indicate armed status. If Pas-
sive Locking is activated, care must be taken to prevent the keys
from being locked in the vehicle.
NOTE: If any protected entry point (such as a door or switch-protected trunk
or hood) is open, Passive Arming will not engage. Additionally, each time
a sensor is triggered during the 30-second arming countdown, the count-
down starts over.
Arming your security system protects your vehicle as follows:
■Light impacts trigger a Warn Away®Response, causing the siren
to chirp and the parking lights to flash for a few seconds.
■Heavy impacts trip a Triggered Sequence, causing the Soft Chirp®
siren to sound continuously and the parking lights to flash for
30 seconds.
■If a door is opened, the siren immediately starts chirping and
the parking lights start flashing to provide an instant response.
Three seconds later, the siren output changes to a continuous
blast. This two-stage progressive response allows you time to
disarm the system with your transmitter if the door is inadver-
tently opened while the system is armed.
■Turning on the ignition key triggers the same two-stage Progressive
Response as opening a door.
■If installed, the Failsafe®Starter Kill Relay (optional feature) pre-
vents the vehicle’s starter from cranking.

8©1999 Directed Electronics, Inc.
Press to disarm the security system and unlock the doors (if
connected). Disarming is confirmed when the parking lights flash
twice and the siren emits two chirps. The siren chirping either four
or five times when disarming indicates Tamper Alert, which is de-
scribed in the Diagnostics section of this manual.
This feature allows you to disarm the system without the remote trans-
mitter, in the event that the transmitter is lost, damaged or disabled.
To disarm the system without a remote transmitter, you must have
the vehicle’s ignition key and know where the Valet switch is located.
Be sure to check with your installer at the time of installation for
both the location and the preset response (1-5 presses) of the
Valet switch.
To disarm the system, turn the ignition
key on and press the Valet switch the
preset number of times within 15 sec-
onds. If the system does not disarm,
you may have waited too long; turn
the ignition off and repeat the process.
IMPORTANT: The Valet switch can be programmed to respond to 1-5
presses for the disarm function. You must check with the installer to ver-
ify the programming for your individual unit.
LOCATION OF VALET SWITCH_____________________________
DRW-35
Disarming Without a Transmitter
Disarming

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©1999 Directed Electronics, Inc.
Use Silent Mode to temporarily turn off the arm or disarm confir-
mation chirps by briefly pressing before either arming or
disarming. The confirmation chirp(s) will be eliminated for that one
operation only. To permanently turn off the arm and disarm chirps,
contact your dealer.
NOTE: The Warn Away Response to lighter impacts is bypassed if the sys-
tem is armed using the Silent Mode. This ensures that the siren does not
chirp in an environment where you don’t want chirps to be emitted. The
system is still capable of being triggered by heavier impacts; only the Warn
Away Response generated by light impacts is bypassed.
If you are threatened in or near your vehicle, press to trig-
ger your alarm system and attract attention. The siren will sound
and the parking lights will flash for 30 seconds. To stop the Panic
Mode at any time, press , , or .
Valet Mode prevents your system from arming and triggering ei-
ther automatically or with the transmitter. In Valet Mode, all
convenience functions (door locks, trunk release, etc.) will remain
operational. This feature is useful when washing or servicing
your vehicle.
Valet®Mode
Panic Mode
Silent Mode

10 ©1999 Directed Electronics, Inc.
To enter or exit Valet Mode with
the Valet switch:
1. Turn the ignition on.
2. Turn the ignition off.
3. Press and release the Valet switch
within 10 seconds.
The status LED will light steadily if you are entering Valet Mode
and will turn off if you are exiting Valet Mode.
You can also activate Valet Mode with the remote transmitter:
1. Open any vehicle door.
2. Press .
3. Press .
4. Press again.
The status LED will light solid if you are entering Valet Mode and
will turn off if you are exiting Valet Mode.
Your system has Nuisance Prevention®Circuitry (NPC™) to prevent
annoying repetitive trigger sequences caused by faulty door pin
switches or environmental conditions such as thunder, jackham-
mers, airport noise, etc.
Here’s how it works: If the alarm is triggered by the same sensor or
switch three times within a 60 minute period, your system inter-
prets this pattern of triggers as false alarms. After the third trigger,
Nuisance Prevention®Circuitry
Remote Valet®
DRW-35

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©1999 Directed Electronics, Inc.
your system ignores, or bypasses, that sensor or switch (along with
any other sensors or switches sharing the same zone) for 60 min-
utes. If the bypassed sensor is triggered again while it is already
being bypassed, the 60-minute bypass period will start over. This
ensures that a sensor that is continually being triggered will remain
bypassed.
NOTE: Arming and disarming the system does not reset the Nuisance Pre-
vention Circuitry. The only ways to reset a bypassed zone are for that zone
not to be triggered for 60 minutes or to turn the ignition key on. When
testing your system, it is important to remember that this circuitry can
cause zones to be bypassed and appear to not work. If five chirps are heard
when disarming the system, the NPC was engaged. To clear the memory,
turn the ignition key on.
Diagnostics
The microprocessor at the heart of your system has the ability to
constantly monitor all of the switches and sensors connected to it.
It can detect any faulty switches or sensors and prevent them from
disabling the entire system. It can also record and report any trig-
gers that occur while you are away from your vehicle.
If the security system is armed at the same time that an input is
active (door opening, sensor triggering, etc.), you will hear one chirp
to indicate arming and a second chirp to indicate Bypass Notifica-
tion. A Bypass Notification chirp means that the system ignores the
Arming Diagnostics

12 ©1999 Directed Electronics, Inc.
input that was active when the system was armed, until that input
ceases. Three seconds after that input ceases, the system will re-
sume normal monitoring. For example, if your vehicle has an interior
light exit delay and you arm the system before the light turns off,
you may hear a second Bypass Notification chirp. Once the light turns
off, however, the system resumes normal monitoring.
NOTE: Bypass Notification does not occur when the system is in Silent Mode
or if the chirps have been programmed by the installer not to sound.
Your system has a Tamper Alert feature that notifies you of system
triggers that occur while you are away from your vehicle. If you hear
four chirps when you disarm, this indicates that the system was trig-
gered in your absence. If you hear five chirps when you disarm, this
indicates that a specific zone was triggered so many times that the
Nuisance Prevention Circuitry has bypassed that zone. In both
cases, the pattern of the flashing status LED will indicate which zone
was triggered (see Table of Zones). The system retains this infor-
mation in its memory and will continue to chirp four or five times
each time the system is disarmed, until the next time the ignition
key is turned on.
A zone is represented by the number of LED flashes used by the sys-
tem to identify a particular type of input. Standard input assignments
are listed in the following table, along with spaces to write in any
optional sensors or switches that have been installed.
Table of Zones
Disarming Diagnostics

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©1999 Directed Electronics, Inc.
ZONE
(Number of DEALER-INSTALLED
LED Flashes) DESCRIPTION OPTIONS
1Instant trigger—often used
for hood/trunk pinswitches
2Instant trigger—a heavier impact
detected by the Doubleguard®
Shock Sensor
3Door switch trigger
4Instant trigger—for optional
sensors
5Ignition trigger
Code Hopping®
The receiver and transmitter use mathematical formulas called al-
gorithms to change their codes each time the transmitter is used.
This Code Hopping technology has been developed to increase the
security of the unit. By following this set code sequence, the re-
ceiver and transmitter stay synchronized, even if the transmitter is
used out of range of the vehicle. If, however, transmitter buttons
are pressed too many times out of range of the vehicle, or the bat-
tery is removed, the transmitter may get temporarily out of sync and
fail to operate the system. To resynchronize the transmitter, sim-
ply press several times within range of the vehicle. The
system will automatically resynchronize and the transmitter will re-
spond normally.

14 ©1999 Directed Electronics, Inc.
Owner Recognition
Using a system programming device, your dealer can program specific
settings for each transmitter that is used with your system. The sys-
tem is then capable of recalling the individual settings assigned to
each transmitter. This Owner Recognition feature allows up to four
users of the same system to have four different settings that meet
their individual needs.
NOTE: Owner Recognition cannot be programmed without a system pro-
gramming device and the necessary software. Check with your dealer for
more information.
Rapid Resume Logic
Your DEI vehicle security system stores its current operational state
in non-volatile memory, so that if power is lost and then recon-
nected, the system will recall the stored state from memory. For
example, if the system is in Valet Mode when the battery is dis-
connected, it will still be in Valet Mode when the battery is
reconnected. This applies to all system features, including arm-
ing, disarming, and Valet Mode.

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©1999 Directed Electronics, Inc.
Multi-Vehicle Operation
Your DEI security system has the ability to interface with other DEI
vehicle security systems to control multiple vehicles using the same
remote transmitter. Contact your local DEI dealer for more details.
Installation Options
Your security system has some options that may require extra parts
and labor. One of these options, Progressive Unlocking, configures
the system so that when you press to disarm, only the dri-
ver’s door unlocks. Pressing again within 15 seconds unlocks
the remaining doors.

16 ©1999 Directed Electronics, Inc.
Programming Options
Programming options control your system’s normal, operational set-
up. Most options do not require additional parts, but some may require
installation labor. The system’s programming options are listed below:
The factory default settings are in bold:
■Active Arming (only with the transmitter) or Passive Arming (au-
tomatic arming 30 seconds after the last door is closed).
■Arming and disarming confirmation siren chirps, on or off.
■Ignition controlled door lock feature, on or off. With this fea-
ture on, the doors will lock three seconds after the ignition key
is turned on, and unlock when the ignition is turned off. The
system also prevents the doors from locking when the ignition
is turned on while any vehicle door is open.
■Active Door Locking (only when arming with the transmitter)
or Passive Door Locking (with Passive Arming).
■Valet Switch Pulse Count: The number of times the vehicle’s Valet
switch needs to be pressed to disarm the security system. One
to five pulses can be programmed, with the default setting being
one pulse.
■Siren Tones and Chirp Volume: The output of the soft chirp siren
consists of six different tones in sequence. Your dealer can
eliminate any of these tones, resulting in a unique, easily iden-
tifiable siren sound. The chirps can be programmed for either
full volume or six decibels quieter than the full alarm blast.