This product is intended for installation by a professional
installer only! Attempts to install this product by a person
other than a trained professional may result in severe
damage to a vehicle’s electrical system and components.
Bitwriter®, Doubleguard®, ESP®, FailSafe®, Learn
Routine™, NPC®, Nuisance Prevention Circuitry®,
Revenger®, Silent Mode™, Soft Chirp®, Stinger®, Valet®,
and Warn Away® are all Trademarks or Registered
Trademarks of Directed®.
The Bitwriter® (P/N
998U) requires chip
version 2.7 or newer to
program this unit.
Bitwriters with a date code of 6A or older require an IC
upgrade (P/N 998M). Some Bitwriters with a date code of
6B do not require the IC upgrade, refer to Tech Tip #1112
for more information.
Table of Contents
Warning! Safety First ....................................................................................................................... 4
Appendix - Door Lock System Types ................................................................................................. 29
Warning! Safety First
The following safety warnings must be observed at all times:
• Due to the complexity of this system, installation of this product must only be performed by an
authorized Directed dealer.
• When properly installed, this system can start the vehicle via a command signal from the remote
control. Therefore, never operate the system in an area that does not have adequate ventilation.
The following precautions are the sole responsibility of the user; however, authorized Directed dealers should:
• Never use a test light or logic probe when installing this unit. Always use a multimeter.
• Never operate the system in an enclosed or partially enclosed area without ventilation (such as a
garage).
• When parking in an enclosed or partially enclosed area or when having the vehicle serviced, the
remote start system must be disabled using the installed toggle switch. It is the user’s sole responsibility
to properly handle and keep out of reach from children all remote controls to assure that the system
does not unintentionally remote start the vehicle.
• USER MUST INSTALL A CARBON MONOXIDE DETECTOR IN OR ABOUT THE LIVING AREA
ADJACENT TO THE VEHICLE. ALL DOORS LEADING FROM ADJACENT LIVING AREAS TO THE
ENCLOSED OR PARTIALLY ENCLOSED VEHICLE STORAGE AREA MUST REMAIN CLOSED AT ALL
TIMES.
Use of this product in a manner contrary to its intended mode of operation may result in property damage,
personal injury, or death. Except when performing the Safety Check outlined in this installation guide, (1)
Never remotely start the vehicle with the vehicle in gear, and (2) Never remotely start the vehicle with the
keys in the ignition. The user is responsible for having the neutral safety feature of the vehicle periodically
checked, wherein the vehicle must not remotely start while the car is in gear. This testing should be performed
by an authorized Directed dealer in accordance with the Safety Check outlined in this product installation
guide. If the vehicle starts in gear, cease remote start operation immediately and consult with the user to fix
the problem immediately.
After the remote start module has been installed, test the remote start module in accordance with the Safety
Check outlined in this installation guide. If the vehicle starts when performing the Neutral Safety Shutdown
Circuit test, the remote start unit has not been properly installed. The remote start module must be removed
or properly reinstalled so that the vehicle does not start in gear. All installations must be performed by an
authorized Directed dealer.
OPERATION OF THE REMOTE START MODULE IF THE VEHICLE STARTS IN GEAR IS CONTRARY TO ITS
INTENDED MODE OF OPERATION. OPERATING THE REMOTE START SYSTEM UNDER THESE CONDITIONS
MAY RESULT IN PROPERTY DAMAGE OR PERSONAL INJURY. IMMEDIATELY CEASE THE USE OF THE UNIT
AND REPAIR OR DISCONNECT THE INSTALLED REMOTE START MODULE. DIRECTED WILL NOT BE HELD
RESPONSIBLE OR PAY FOR INSTALLATION OR REINSTALLATION COSTS.
Remote starters for manual transmission pose significant risks if not properly installed and operated. When
testing to ensure the installation is working properly, only remote start the vehicle in neutral gear, on a flat
surface and with a functional, fully engaged parking brake. Do not allow anyone to stand in front of or behind
the vehicle.
This product should not be installed in any convertible vehicles, soft or hard top with a manual transmission.
Installation in such vehicles may pose certain risk.
* When using the N/C (Normally Closed) setting, this wire only covers one door. Use AUX (Auxiliary)
outputs 2, 3 or 4 (as necessary) programmed as N/C door switch inputs (wired to each individual
door of the vehicle) to cover the other doors. The auxiliary outputs are also programmable as N/O
(Normally Open) door switch inputs so you can connect multiple doors without the use of diodes.
When the auxiliaries are programmed for these types of circuits and connected to the vehicle, the alarm
reports a door violation when triggered.
Important: NEVER connect the 200mA low current outputs directly to a motor or high current device
WITHOUT a relay.
Door Lock Harness, White 8-pin connector
1VIOLET*UNLOCK #87 NORMALLY OPEN (INPUT)
2BLUE/BLACKUNLOCK #30 COMMON (OUTPUT)
3BROWN/BLACKUNLOCK #87a NORMALLY CLOSED
4VIOLET/BLACK*LOCK #87 NORMALLY OPEN (INPUT)
5GREEN/BLACKLOCK #30 COMMON (OUTPUT)
6WHITE/BLACKLOCK #87a NORMALLY CLOSED
7WHITE/VIOLET**DOME LIGHT SUPERVISION FLEX RELAY #87 NORMALLY OPEN (INPUT)
8WHITE/BROWN**FLEX RELAY #87a NORMALLY CLOSED
* Violet and Violet/Black are common at the fuse holder.
** These wires work in conjunction with the 12-pin Black/White wire. The White/Violet determines what
the polarity of the 12-pin Black/White wire will be and the White/Brown will only be used if a five wire
isolation circuit is required.
Bitwriter/Directed SmartStart Harness, Black 3-pin connector
1RED(+) 12V
2ORANGEESP 2 - RX/TX
3BLACK(+) 12V
Wire Descriptions
Main Harness, 12-pin connector
Red/White: (-) AUX/TRUNK RELEASE OUTPUT
This (-) 200mA output is often used to operate a trunk/hatch release or other relay-driven functions. When
the system receives the command controlling trunk release (for longer than 1.5 seconds) the Red/White wire
will supply an output as long as the transmission continues. This output can also be programmed as an OEM
Alarm Arm or as a 2nd Unlock output (see AUX/Trunk Output Type in Feature Menus for more details).
Important: Never connect the 200mA low current outputs directly to a motor or high current device
WITHOUT a relay.
Red: (+) 12V CONSTANT INPUT
This wire supplies power to the unit’s micro-controller. Remove the supplied fuse before connecting to the (+)
terminal of the battery or another constant +12V supply. Make sure to replace the fuse once all connections
have been made.
Note: Always use a fuse within 12 inches of the point from which you obtain (+) 12V. Do not use the 15A
use in the harness for this purpose. This fuse protects the module only.
Brown: (+) SIREN OUTPUT
This wire is the (+) output for the siren. This wire connects to the (+) input of the siren.
White/Brown: PARKING LIGHTS FLASH ISOLATION WIRE (#87a of onboard relay)
This wire is a parking lights flash input from the vehicle light switch which connects to pin #87a of the onboard
lights flash relay. It is used for vehicles requiring light switch isolation during parking lights flash output.
For vehicles with multiplex light circuits which require a resistor, the onboard lights flash fuse can be replaced
+ -
with the specified resistor value (pay attention to appropriate circuit polarity). See the following diagram for
wiring information.
Multiplex Parking Lights
Light Switch
Multiplex wire
in vehicle
To Control
Module in
vehicle
XX
White/Brown
White
Note: Replace fuse with specified resistor value
if connecting to multiplex light circuit
(pay special attention to polarity selection)
LIGHT FLASH POLARITY
JUMPER Detail
Black: (-) CHASSIS GROUND
This wire is the unit’s source of ground. DO NOT connect this wire to any factory ground points; they can
cause noise and/or voltage drops which can affect system performance. Ground the unit and any accessories
to the same point in the vehicle (preferably the kick panel). Scrape away any paint and make your own
ground with a screw and a star washer.
Violet: (+) DOOR TRIGGER INPUT
This input wire is used in vehicles with (+) door trigger circuit and will sound the alarm when any of the
vehicle’s doors are opened.
Blue: (-) TRUNK TRIGGER/INSTANT TRIGGER INPUT N/O (Normally Open) OR N/C (Normally Closed)
This input wire comes factory set for use in vehicles with a (-) trunk trigger circuit and will sound the alarm
when the vehicle’s trunk is opened. It can also be used as an instant trigger input for use with a Directed single
zone sensor. This wire can be programmed for a N/O (Normally Open) or N/C (Normally Closed) circuit.
N/O = rests at ground when the trunk is OPEN, N/C = rests at ground when the trunk is CLOSED.
(see Trunk Switch Type in Feature Menus for more details).
Note: There are times when you need to temporarily bypass all sensor inputs to the unit, such as when
activating the trunk release or when adding an optional remote start to the system. Anytime an auxiliary
output is used, all trigger inputs (except the door trigger input) are bypassed for 5 seconds. During the 5
second period, if the system receives a (-) ground on the 12-pin Blue trunk trigger input wire, all trigger inputs
will remain bypassed until 5 seconds after the ground is removed from the Trunk trigger input wire. Refer to
the following diagrams for wiring/programming information.
Green: (-) DOOR TRIGGER INPUT (N/O OR N/C)
This input wire comes factory set for use in vehicles with (-) door trigger circuit and will sound the alarm when
any of the vehicle’s doors are opened. This wire can be programmed for a N/O (Normally Open) or N/C
(Normally Closed) circuit.
N/O = rests at power or ground when the door is OPEN, N/C = rests at power or ground when the door is
CLOSED, (see Door Switch Type in Feature Menus for more details).
Note: This wire can only monitor one door when used in a Normally Closed circuit if all doors want to
be connected to individually, use AUX 2-4 outputs and refer to AUX Output Type in the Feature Menus for
programming to work with Normally Closed Door Trigger circuits. Refer to the following diagram for wiring
information.
N/C (Normally Closed) Door Triggers
RR Door Trigger
LR Door Trigger
RF Door Trigger
LF Door Trigger
Individual
Door Pins
Green Door Trigger Input*
BCM
AUX 2*
AUX 3*
AUX 4*
* Default is N/O and must be programmed for N/C
when connecting to Normally Closed door trigger circuits.
This wire is pin #30 of the onboard Dome Light/Flex Relay and works in conjunction with the White/Violet
(pin #87) and the White/Brown (pin #87a) wires on the 8-pin Door Lock Harness.
This output is default to drive the dome light circuit in the vehicle. This output activates when disarming/
unlocking the system and when turning the ignition OFF in the vehicle (for programmable ON/OFF ignition
controlled dome light (see Ign-controlled Dome Light in Feature Menus for more details). The Flex Relay can
also be programmed as a Horn Honk or Trunk Release output (see Flex Relay in Feature Menus for more
details).
White/Blue: (-) AUXILIARY 1 OUTPUT
This (-) 200mA output is used for controlling any auxiliary function such as fuel door release or a window
module. This output can be programmed for different applications. (see AUX 1 options in Feature Menus for
more details).
Important: Never connect the 200mA low current outputs directly to a motor or high current device
WITHOUT a relay.
White: (+) or (-) PARKING LIGHTS OUTPUT
This wire should be connected to the parking lights wire in the vehicle. It activates when the system is armed/
disarmed and when the alarm is triggered. It can be set for a (-) or (+) output. See the following diagram for
setting the lights flash polarity.
(+) Parking Lights
LIGHT FLASH POLARITY
JUMPER Detail
Place the fuse in the correct
position for the desired polarity
Orange: (-) GWA (GROUND WHEN ARMED OUTPUT)
This wire supplies a (-) 500mA ground output as long as the system is armed. This output ceases as soon as
the system is disarmed. The GWA can be hooked up to a voice module or any accessory which requires a
ground when armed.