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
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.
Note: Fuse is under the plastic cover and needs to
be installed for the appropriate light flash polarity.
10A FUSE
MINI ATM
Bitwriter/Directed
SmartStart Port
Remote Start
8-pin Harness
Thermistor/Temp Sensor
Sensor Port 1:
Doubleguard Shock Sensor
Sensor Port 2
ON
Remote Start
Shutoff Switch
RF/Control
Center Port
IMPORTANT!
Remote Start Shutoff
switch must be plugged in
and in the ON position
Main 6-pin
Harness
Door Lock
3-pin Harness
AUX/Shutdown
24-pin Harness
D2D Port
(for external Directed
interface module)
Note: Sensor ports 1 and 2 cannot support constant power and ground connections for 508D due to current
limitations. When installing a 508D use alternate location for constant power and ground connections. See
Tech Tip #1924: Adding external sensor(s) to a Directed system.
* Required connection for manual transmission vehicles.
** Connect this wire to the (-) parking brake wire in the vehicle (see Owners Guide for manual transmission
procedure).
Important: NEVER connect 200mA low current outputs directly to a motor or high current device WITHOUT
a relay.
Bitwriter/Directed SmartStart Harness, Black 3-pin connector
1RED(+) 12V
2ORANGEESP 2 - RX/TX
3BLACK(+) 12V
Wire Descriptions
Main Harness, 6-pin connector
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 when 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
fuse in the harness for this purpose. This fuse protects the module only.
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.
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 #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.
Light Switch
Multiplex wire
in vehicle
XX
To Control
Module in
vehicle
White/Brown
White
LIGHT FLASH POLARITY
JUMPER Detail
Note: Replace fuse with specied resistor value
if connecting to multiplex light circuit
(pay special attention to polarity selection)
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, remote started, when the alarm is triggered, and is also used for certain diagnostics. It can be set
for a (-) or (+) output. See the following diagram for setting the lights flash polarity.
LIGHT FLASH POLARITY
JUMPER Detail
Place the fuse in the correct
position for the desired polarity
Note: Any parking lights circuit which draws 10 amperes or more must use P/N 8617 (or a standard
automotive SPDT relay) to drive the circuit in the vehicle.
Orange: (-) GWA (GROUND WHEN ARMED OUTPUT)
This wire supplies a (-) 500mA ground output as long as the system is armed and while the remote start is
active. This output ceases as soon as the system is disarmed or remote start disengages. The GWA can be
hooked up to a voice module or any accessory which requires a ground when armed.
Note: The Ground When Armed during remote start feature can be programmed OFF (see Anti-grind Output
in Feature Menus for more detail).
Important: Never connect the 200mA low current outputs directly to a motor or high current device
WITHOUT a relay.
Pink/White: (-) IGNITION 2/FLEX OUTPUT
This (-) 200mA output wire works in conjunction with the (+) Pink/White wire in the heavy gauge harness.
It comes factory set as Ignition 2 and can be programmed for an Accessory or Starter output. It is typically
used to activate a relay for an additional (+) Ignition, Accessory or Starter wire in the vehicle (see Flex Relay Function in Feature Menus for more detail).
Note: Programming this wire also affects the timing of the heavy gauge (+) Pink/White wire and vice-versa.
Blue/White: (-) 2ND STATUS/REAR DEFOGGER OUTPUT
This (-) 200mA output is default for status output and will activate as soon as the remote start process begins
and will stay active while the remote start is on, it is typically used to activate a module or any accessory
which requires a ground during the remote start sequence. This wire can also be programmed to activate a
defogger circuit in the vehicle (see Status 2 Output in Feature Menus for more detail).
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 a 2nd Unlock
output when driver’s priority unlock is desired (see AUX/Trunk Output Type in Feature Menus for more detail).
Black/Yellow: (-) DOME LIGHT OUTPUT
This (-) 200mA output is used 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 (ignition controlled Dome
Light is programmable ON/OFF). (see Ign-controlled Dome Light in Feature Menus for more detail).
Dark Blue: (-) STATUS OUTPUT
This (-) 200mA output will activate as soon as the remote start process begins and will stay active while the
remote start is ON, it is typically used to activate an interface module or any accessory which requires a
ground during the remote start sequence.
White/Black: (-) AUXILIARY 3 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 the AUX 3 options in Feature Menus
for more detail).
White/Violet: (-) 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 the AUX 1 options in Feature Menus
for more detail).
Orange/Black: (-) AUXILIARY 4 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 the AUX 4 options in Feature Menus
for more detail).
Gray: HOOD TRIGGER INPUT (N/O OR N/C)
This input wire is used to trigger the alarm when the vehicle’s hood is opened. It will also prevent the remote
start from activating if the hood is open. This wire can also be programmed for a N/O (Normally Open) or
N/C (Normally Closed) circuit.
N/O = rests at ground when the hood is OPEN, N/C = rests at ground when the hood is CLOSED. (see Hood Switch Type in Feature Menus for more detail).
Blue: (-) TRUNK TRIGGER/INSTANT TRIGGER INPUT (N/C OR N/O)
This input wire is used to trigger the alarm when the vehicle’s trunk is opened. It can also be used as an instant
trigger input for use with single zone sensors. 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 detail).
White/Blue: (-) REMOTE START ACTIVATION INPUT
This input wire is used to manually activate/deactivate the remote start sequence by pulsing it to ground
(programmable for single or double pulse activation/deactivation). It can also be used to activate the Turbo
Timer feature of the system if attached to a ground through an optional momentary switch and the Timer Mode
feature is enabled (see Activation Pulse Count or Turbo Mode in Feature Menus for more details). Additionally
it can be used to activate Manual Transmission Ready Mode when connected to ground through an optional
momentary switch.
Violet/White: TACHOMETER INPUT
This input wire connects to a tachometer signal in the vehicle. It provides the system with information about
the engine’s RPMs. This is a required connection when installing the system in a manual transmission vehicle.
Black/White: (-) PARKING BRAKE/E-BRAKE INPUT
This input wire connects to the parking brake/E-BRAKE wire in the vehicle. This wire must have a ground and
the Remote Start ShutOFF Switch must be plugged in and turned ON for the remote start to operate. This is
a required connection.
Green/Black: (-) FACTORY ALARM DISARM OUTPUT
This 200mA output is used to disarm the factory alarm and triggers when remote start is activated, when the
system is disarmed and when activating the trunk release output. It typically connects to the Factory Alarm
Disarm wire in the vehicle. This output can be programmed ON to activate with unlock, trunk release and for
a single or double pulse output (see OEM Alarm Disarm options in Feature Menus for more detail).
Green: (-) DOOR TRIGGER INPUT (N/O OR N/C)
This input wire comes factory set for use in vehicles with (-) door trigger(s) circuit and will sound the alarm
when any of the vehicle’s doors are opened. This wire (for the Violet (+) Door Trigger input) is a required
connection when installing the system in a manual transmission vehicle. This wire can also be programmed
for a Normally Open (N/O) or Normally Closed (N/C) circuit.
N/O = rests at ground when the door is OPEN, N/C = rests at ground when the door is CLOSED, (see Door Switch Type in Feature Menus for more detail).
Note: This wire can only monitor one door when used in a Normally Closed door trigger circuit. To interface
with more than one N/C door trigger use an interface or Tech Tip #1921.