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Table of Contents
1. Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 1
2. Installation Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 2
3. Mounting Components
Main Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3
Siren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3
EXT 2 Antenna (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 4
Logic Sensor II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 4
Override Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 5
LED Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 5
4. Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 6
5. Wiring Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 7
6. Jumper Settings
Jumper Selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 10
Accessing the Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 11
Setting the Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 11
7. Remote Transmitters
Remote Transmitter Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 12
Transmitter Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 12
Two Car Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 14
Adding a New Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 15
Deleting Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 15
8. Programming
System Initialization and Default Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 16
Arming Mode Selection (Active or Passive Arming) . . . . . . . . . . . . . . . . . . . . . . . .Page 16
Entering System Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 16
Programmable System Parameters
1. Ignition Controlled Door Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 17
2. Ignition Controlled Door Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 17
3. Logic Sensor II - Warn Away Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 17
4. Audible Tamper Alert Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 17
5. Double Pulse Door Unlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 18
6. Auto Rearm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 18
7. Entry Delay for Passive Arming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 18
8. Trunk Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 18
9. Illuminated Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 18
10. Auxiliary Function 2 (Momentary / Latched / Timed) . . . . . . . . . . . . . . . .Page 18
11. Logic Sensor Defeat (Dedicated Remote Start Mode) . . . . . . . . . . . . . . .Page 19
12 Transmitter Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 19
9. Logic Sensor II
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 20
Warn Away Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 20
Remote Logic Sensor II Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 21
10. Full Time System Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 21
11. Reference Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 22
12. Door Lock Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 23
13. Driver Door Priority Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 24
14. Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Page
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Before You Begin

1. Be sure to read the manual thoroughly before beginning the installation to ensure a proper
understanding of the MS5500 and its functions.
2. Verify system contents:
❑ Main Unit
❑ Two 3-Button Remote Transmitters
❑ Siren
❑ Logic Sensor II
❑ Harnesses
• 14-Pin main harness
• 4-Pin auxiliary function harness
• 2-Pin Status LED harness
• 2-Pin Override Switch harness
• Pre-wired starter kill relay socket with relay

3. Discuss the location of the status LED and the Emergency Override Switch with the
vehicle’s owner.
4. Discuss the optional features of the MS5500 and the features that must be programmed
during installation, with the vehicle’s owner.
5. Check all of the vehicle’s operating systems before and after the installation.

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Installation Tips
1. Use a Volt / Ohm meter to test all wires. Do not use a test light.
2. Good power and ground connections are essential for proper operation.
3. Route all wires from the engine compartment to the interior of the vehicle through a
grommet and use electrical tape and split loom tubing for protection.
4. When adding optional accessories such as door locks, window modules, etc., be sure to
fuse each additional accessory power lead separately from the main power source. This
will insure that the security system power is retained in the event that an accessory
malfunctions.
5. Avoid extending the system’s wires, the supplied wiring harnesses provide sufficient length
to connect to the required vehicle circuits. If a wire must be extended, be sure to use the
appropriate gauge wire in order to avoid a drop in current.
6. Never bypass the fuses included in the MS5500 wiring harness. They are necessary safety
items designed to protect both the system and the vehicle.
7. Be sure to perform a full function test of all of the systems components to verify proper
operation. Also, be sure to check all of the vehicle’s operating systems before and after the
installation.
8. For maximum security, disguise all system wires with black electrical tape and split loom
tubing to prevent a thief from being able to identify the system wiring.

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Mounting Components
Main Unit
The main unit should be mounted in the interior of the vehicle. Do not mount the main unit
in the engine compartment. For maximum security, avoid mounting the main unit where it
will be easily accessible to a thief.
If you are mounting the unit under the dash board, be sure to mount the unit as high as
possible and in a location where it will not interfere with the operation of the pedals.
Be sure to extend the antenna as high as possible so that optimum range can be achieved.
Before securing the unit, be sure that you have made all of the necessary jumper selections
and perform a thorough function test of the system.
The case of the MS5500 is designed to be mounted using screws, or secured using wire
ties through the wire tie mounting tabs on the bottom of the unit as shown below.

Siren
Mount the siren facing downward and away from sources of heat and face the opening
downward to prevent water from collecting inside the housing. Be sure that the wires are
not easily accessible from underneath the vehicle.
For maximum security, it is best to disguise all under hood system wires with factory style
split loom tubing so that they cannot be easily identified by a thief.
Run all wires from the engine compartment into the interior of the vehicle through a
grommet.

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EXT2 Extended Range Antenna (optional)

The optional EXT2 is a tuned, coaxial antenna, designed to be used with the MS5500
security system to increase transmitter range. When properly installed, the EXT2 will add
greater installation flexibility to the system, allowing the antenna to be placed high in the
vehicle to achieve maximum range.
Open the cover of the MS5500 main unit and plug the 2-Pin EXT2 connector into the
antenna port located directly on the alarm board, next to the existing antenna. Be sure that
the side of the connector marked with a black dot (center conductor) is facing the side of the
alarm opposite the alarm 14-Pin main connector.
Run the EXT2 cable through the same hole used for the existing antenna. Once you have
replaced the cover, twist the existing antenna around the EXT2 cable to prevent any
potential RF interference.
Route the EXT2 up as high as possible inside the vehicle and be sure to avoid running the
exposed end of the cable along any wire harnesses.

EXT2 cable

Connector

EXT2 coiled around existing antenna

Black Dot

Existing Antenna

Logic Sensor II
The Logic Sensor II, included with the system, is designed to be mounted in the interior of
the vehicle using a tie wrap or double sided tape. Be sure to avoid mounting the sensor to
sources of strong electrical interference such as cellular phone transceivers or the vehicle’s
engine computer.
Suggested mounting locations are an air conditioning duct, or a dashboard or center
console support brace.
Shock and Motion
When mounted horizontally, the Logic Sensor II will detect both shock and motion. The
Logic Sensor II’s motion detection is most effective on the axis on which it is mounted,
which means that careful selection of the mounting location of the sensor will help to
insure it’s effectiveness. See Jumper Selections to select motion sensitivity.
Shock Only
When mounted vertically, the Logic Sensor will detect shock or impacts to the vehicle
only and will be unaffected by slow rocking movements of the vehicle. This is especially
useful in vehicles that are normally parked in areas subject to high wind or parked in
tall parking structures that tend to move or sway.

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Mounting For
Shock Sensitivity Only

Motion Sensitivity
Mounting For Shock Position
Front/Rear Side to Side
and Motion Sensitivity
Least Best

Good Good

Good Good

Best Least

Override Switch
Mount the Override Switch in a location near the driver where it is easily accessible but not
plainly visible. Plug the blue override switch connector into the blue 2-pin socket on the
main unit.
Be sure that the switch cannot accidentally be pressed or damaged by movement of
passengers or contents within the vehicle.

LED Status Indicator

Mount the status LED so that it is visible from both sides of the vehicle. Plug the white
LED connector into white 2-pin socket on the Main Unit.

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Wiring Diagram

Override Status
Switch LED

Logic
Sensor II

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Wiring Description
14-Pin Main Harness
Pin 1 - BLACK: Ground.
Connect to a solid chassis ground. Be sure to use a ring connector of proper size. Scrape
away the paint at the grounding point.
Pin 2 - RED: Main Power (+12v) input [3A fuse]
Connect to constant +12v. A clean source of power is essential. This connection can be
made at either the battery or at the constant power supply wire to the ignition switch. Be
sure to install a fuse near the connection. Do not remove or bypass the fuse holder
included on the wire harness.
Pin 3 - VIOLET: Ignition input (+12v) input.
Connect to a source that maintains +12v when the ignition key is in both the "on" and "start"
positions.
Pin 4 - WHITE: Door Trigger (-) input
Connect to negative door switch circuit. This circuit will show ground (-) when the door is
open.
Pin 5 - YELLOW: Door Trigger (+12v) input
Connect to positive door switch circuit. This circuit, commonly found in Ford vehicles, will
show +12v when the door is open.
Pin 6 - WHITE/brown: Hood/Trunk Trigger (-) input
Connect to negative output from hood and/or trunk switches.
Pin 7 - WHITE/violet: Optional Sensor (-) trigger input.
Connect to the negative trigger output from an optional sensor.
Pin 8 - ORANGE: Siren (+12v) output
Provides +12v to drive the siren. Connect to the Red siren wire. Connect the Black siren
wire to chassis ground.
Pin 9 - WHITE/green: Door Lock (-) / Door Unlock (+)
Pin 10 - WHITE/blue: Door Unlock (-) / Door Lock (+)
These wires can be directly connected to negative and positive triggered door lock systems.
For Voltage Reversal systems and After-market actuators, add relays. For further
information, see Door Lock Diagrams. For selection of Double Pulse output and 4-second
pulse, see Programming and Jumper Settings.

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Pin 11 - BLUE: Starter Defeat Normally Closed (-) output

Provides a negative output while the alarm is Armed and during alarming to disable the
vehicle’s starter circuits. Connect to the provided Starter Kill Relay socket as shown.
to Starter
Solenoid
to alarm BLUE
BLUE wire

WHITE

to alarm
VIOLET wire

cut
RED

VIOLET
to Ignition Key +12v
in “on” and “start”

In this configuration, the vehicle’s starter will be disabled only when the system is armed and
alarming. If power to the system is lost or the system becomes disconnected, the vehicle
will be able to start.
Pin 12 - BLUE/red: Starter Defeat Normally Open (-) output
Provides a negative output while the system is Disarmed to enable the starter circuits.
Connect to the provided Starter Kill Relay socket as shown.
to Starter
Solenoid
to alarm BLUE
BLUE/red wire

BLACK

to alarm
VIOLET wire cut

RED

VIOLET
to Ignition Key +12v
in “on” and “start”

In this configuration, the vehicle will only start when the system is both connected and
disarmed.
Pin 13 - RED/yellow: Parking Light (+/-) output [on-board relay, 7.5A Fuse]
Provides +12v or ground (-) to flash the parking lights. Do not connect this wire to parking
light circuits that exceed 10 amps. For vehicles that have independent left and right parking
light circuits, the parking light wires must be connected using diodes to keep the circuits
separate. See Jumper Settings to select polarity.

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Pin 14 - YELLOW/white: Auxiliary Function 1 negative output

Provides negative (-) output. Output will stay on for as long as the Button is pressed.

4-Pin Auxiliary Function Harness

Pin 1 - YELLOW/black: Auxiliary Function 2 (-) output (resets with arm and disarm).
Provides a negative output to activate a relay. The output of this wire can be programmed
to operate in one of three operating modes. See Programming.
Momentary - provides output for as long as the transmitter button is pressed.
Latched - provides an output that stays active until the transmitter button is
pressed again.
Timed - provides an output that stays active for 30 seconds when the
transmitter button is pressed. If the transmitter button is pressed
again during the 30 seconds, the output will turn off.
Possible uses of the latched and timed outputs include: audio system valet, auxiliary lighting
control, timed headlight operation, etc.
When latched or timed operation is selected, the output will reset (turn off) each time the
system is armed or disarmed.
Pin 2 - ORANGE/blue: Alarming / Horn Honk (-) output
Provides a negative output when the system is triggered to activate a relay. The output is
selectable for continuous or pulsed operation. See Jumper Settings.
This wire can be connected to a relay to honk the vehicle’s horn, or activate an auxiliary
siren or air horns when the system is triggered.
Pin 3 - BLACK/white: Dome Light (+/-) output [on-board relay, 5A Fuse]
Illuminated Entry/Exit output. Provides a selectable positive (+12v) or negative (-) output to
turn on the vehicle’s dome light when the system is disarmed and when the ignition key is
turned off. Normally, this wire can be connected directly to the door switch circuit. Be sure
to set the polarity of this output. See Jumper Settings.
Pin 4 - VIOLET/ yellow: Warn Away (-) input.
Connect to the negative Warn Away output from an optional sensor.

Other Harnesses
For details on the Status LED and Override Switch, see Mounting Components.

Extra LEDs
Up to 3 extra LEDs can be added. Cut the Red LED wire and connect in series as shown.

LED
Connector

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Jumper Settings
Jumper Selections
Parking Light Polarity. Selects the polarity (+/-) for the output of the on-board Parking Light
relay.
Pin 1 + Pin 2 = positive
Pin 2 + Pin 3 = negative

Dome Light Polarity. Selects the polarity (+/-) for the output of the on-board Illuminated
Entry/Exit relay.
Pin 1 + Pin 2 = positive
Pin 2 + Pin 3 = negative

Door Lock Pulse Width. Selects between a 1-second and a 4-second output for door locking
and unlocking. Set to 4 seconds when interfacing into vehicles equipped with vacuum door
locking systems.
Ignore Delayed Domelight. For use with vehicles equipped with a timed dome light circuit that
stays on after door has been closed. When the jumper is on, the system will ignore the
dome light circuit during arming to prevent the system from responding with an open zone
indication each time the system is armed.
Passive Door Locking. When the jumper is on, the system will automatically lock the doors with
Auto Rearm and Passive Arming.
Horn Honk / Arming Output. Selects between pulsed or constant output for the Orange/blue
wire.
Logic Sensor Motion Sensitivity. When the jumper is off, the system will respond to shock
only. When the jumper is set to on, the system will respond to both shock and motion.

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Accessing the Jumpers

Using a flathead screwdriver, carefully press in on the
access tabs on the sides of the case until the hooks
release.

Take care not to push the tabs in too far or they may
break.

Once you have made your selections, close the case by

aligning the top and button halves of the case, making
sure that the tabs are over their mounting holes.

Setting the Jumpers

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Remote Transmitters
Remote Transmitter Layout
Button 1
LED

Button 2

Mode Button

Each system comes with 2 Remote Transmitters, pre-programmed to operate in the Ungo
Standard Mode and will Arm and Disarm the system with chirp confirmation using Button 1.

Transmitter Operating Modes

The MS5500 can be configured to work with the remote transmitters in one of three ways, Ungo
Standard Mode (default), Convenience Mode, or Driver Door Priority Mode. To select or change
the transmitter operating mode, see Programming.
For ease of understanding, any references made in this manual to the Remote Transmitter, are
assuming that the Transmitter Operating Mode is set to Ungo Standard Mode, unless otherwise
stated.
Ungo Standard Mode
This mode is the default setting for transmitter operation.

MODE MODE MODE MODE

none green orange red

BUTTON 1 ARM/DISARM AUX 2 not used not used

BUTTON 2 AUX 1 not used not used not used

MODE BUTTON Mode Sequence

None:Green:Orange:Red:None:...

Button 1 Arms and Disarms the system. This Button also locks and unlocks the doors when the
system is in Valet Mode.
Button 2 controls the system’s Auxiliary Function 1.
When the Arm/Disarm Button is pressed together with any other Transmitter Button, the system
will Arm or Disarm silently (without chirp confirmation).
If the system was programmed to arm without chirp, pressing Buttons 1 and 2 together will arm the system with
chirp.

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The Mode Button will change the function of Buttons 1 and 2 each time it is pressed, allowing
Buttons 1 and 2 to control the system’s Auxiliary Function Outputs.
Note also that the LED on the transmitter changes color each time the Mode Button is pressed
to indicate the current function of Buttons 1 and 2. The LED will stay on for 5 seconds, then turn
off, returning Buttons 1 and 2 to their off settings.
It is also possible to set individual Remote Transmitters to arm and disarm the system using any
of the Transmitter’s function buttons, which is extremely useful when a Transmitter is used to
control multiple systems. See Adding a New Transmitter into the System.
The button assignment of Arming and Disarming will not affect the operation of the Remote
during Programming, Logic Sensor II Adjustment, or any other system set-up function. The
buttons used to control those features will remain as they are described in this manual,
regardless of how the Transmitter is set up to arm and disarm the system.

Convenience Mode
This mode will configure the system to Arm and Disarm on separate buttons for convenience
and ease of use.

MODE MODE MODE MODE

none green orange red

BUTTON 1 ARM AUX 2 not used not used

BUTTON 2 DISARM / AUX 1* not used not used not used

MODE BUTTON Mode Sequence

None:Green:Orange:Red:None:...

*AUX 1 when system is Disarmed

Button 1 Arms the system. This Button also locks the doors when the system is in Valet Mode.
Button 2 Disarms the system. Pressing Button 2 again activates the system’s Auxiliary Function
1. This Button also unlocks the doors when the system is in Valet Mode.
If the system is Armed, pressing Button 2 will Disarm the system.
If the system is Disarmed, pressing Button 2 will activate the Auxiliary Function 1.
If the system is in Valet and the doors are locked, pressing Button 2 will unlock the doors.

Driver Door Priority Mode

This mode operates in a similar manner as the Convenience Mode, with the added safety of
unlocking just the driver’s door when the system is disarmed. Pressing the Disarm button again
within 10 seconds will unlock the remaining doors.
To properly utilize this mode, the Auxiliary Function 1 output must be connected directly to a relay
that controls the driver ‘s door lock actuator. See Driver Door Priority Wiring Diagrams

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MODE MODE MODE MODE

none green orange red

BUTTON 1 ARM AUX 2 not used not used

BUTTON 2 DISARM*/ UNLOCK ALL not used not used not used

MODE BUTTON Mode Sequence

None:Green:Orange:Red:None:...

*Disarming the system will unlock only the driver's door.

Button 1 Arms the system. This Button also locks the doors when the system is in Valet Mode.
Button 2 Disarms the system and at the same time activates Auxiliary Function 1 (which unlocks
the driver’s door). This Button also unlocks the doors when the system is in Valet Mode.
If the system is Armed, pressing Button 2 will Disarm the system and unlock the driver’s door only.
If the system is Disarmed, pressing Button 2 will unlock all remaining doors.
If the system is in Valet and the doors are locked, pressing Button 2 will unlock the driver’s door. Pressing Button
2 again will unlock all remaining doors.

Multi Car Operation

For your convenience, you may use a single transmitter to operate multiple vehicles. The
Transmitter can be set to arm Car #1 with Button 1 and arm additional cars with the first available
Buttons not being used by Car #1. For ease of use, we recommend using Mode, Mode, 1 to arm
Car #2, although any available button may be used
The following diagram illustrates how a single transmitter can operate a two-car system while
retaining all of the Auxiliary Functions. The Auxiliary functions for Car #2 will follow the
arm/disarm button in sequential order.

MODE MODE MODE MODE

none green orange red

BUTTON 1 ARM(A) AUX 2(A) ARM(B) AUX 2(B)

BUTTON 2 AUX 1(A) not used AUX 1(B) not used
MODE BUTTON Mode Sequence
None:Green:Orange:Red:None:...

(A) = Car 1
(B) = Car 2

As stated, the Programming and set-up functions of Car #2’s system will not be affected by this
Transmitter configuration and will operate exactly as described in this manual.
Following the button configurations described above, it is possible to control as many as 8
vehicles using a single Transmitter, provided no Auxiliary Functions are being used.

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Adding a New Transmitter into the System

1. Turn on the ignition.
2. Press and hold the Override switch.
• The status LED will turn on red.
3. Within 5 seconds:
Continue holding the Override switch and Press Transmitter Button 1*
For remote arming with chirp confirmation.
--- or ---
Release the Override switch and Press Transmitter Button 1*
For remote arming without chirp confirmation.
• The status LED will flash once quickly to confirm that the new Remote Transmitter
has been added.
4. Turn off the ignition.

Deleting Transmitters (Adding a Remote Transmitter and Erasing All

Other Remote Transmitters From the System)
1. Turn on the ignition.
2. Press and hold the Override switch.
• The status LED will turn on red.
Continue to hold the override switch.
• After 5 seconds, the status LED will flash 4 times, then turn on red again.
3. Within 5 seconds:
Continue holding the Override switch and Press Transmitter Button 1*
For remote arming with chirp confirmation.
--- or ---
Release the Override switch and Press Transmitter Button 1*
For remote arming without chirp confirmation.
• The status LED will flash once quickly to confirm that the new Remote Transmitter
has been added.
4. Turn off the ignition.
* The Button that is pressed will be the Arm/Disarm Button on that Remote Transmitter. You may program any of the
Transmitter’s buttons to arm and disarm the system at this point.

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Programming
System Initialization and Default Reset
Following this procedure will set all System Programming Parameters to factory default settings.
1. Turn on ignition.
2. After 4 seconds, press and hold Buttons 1 and 2 together for 5 seconds.
The siren will emit one chirp, indicating that the reset signal was received.
3. Turn ignition off.
• All System Programming parameters are now set to factory default settings.
• The Arming Mode is set to Remote Arming only.
• The Valet Mode is off.
• The Logic Sensor II shock sensitivity is set to Level 6.

Arming Mode Selection (Passive or Active Arming)

Using the Remote Transmitter, you may select Passive Arming with chirp confirmation, Passive
Arming without chirp confirmation, or Active Arming (Remote only).
To set the Arming Mode:
1. Turn the ignition on.
2. Within 4 seconds, press Transmitter Buttons 1 and 2 together.
First push: one chirp = Passive Arming with chirp
Second push: two chirps = Active Arming
Third push: three chirps = Passive without chirp

3. Turn off the ignition key to save your selection.

Entering System Programming

To enter System Programming:
1. Turn the ignition on.
2. Within 4 seconds, press Transmitter Button 2.
• The siren will emit one short chirp, indicating that you have entered Programming Step
1.
• The status LED will show the current setting of Step 1 (solid or flashing).
3. You can now make changes to the Programmable System Parameters.
Press Button 1 to change the setting.
Press Button 2 to move to the next step.

4. When you are finished, turn the ignition key off to save your changes. You can turn the
key off at any time during programming. When the key is turned off, the changes that
you have made will be saved.

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Programmable System Parameters

Status LED
Button 1
Step Function flashing flashing
Button 2

solid* (quickly) (slowly)

1 Ignition Controlled Door Locking ON OFF
2 Ignition Controlled Door Unlocking ON OFF
3 Logic Sensor II Warn Away Level High Low
4 Audible Tamper Alert Report audible LED only
5 Door Unlock Pulse single pulse double pulse
6 Auto Rearm OFF ON
7 Entry Delay for Passive Arming no delay 10 seconds
8 Trunk Bypass OFF ON
9 Illuminated Exit ON OFF
10 Auxiliary Function 2 output momentary latched 30 seconds
11 Logic Sensor Defeat OFF Aux 1 Aux 2
12 Transmitter Operating Mode Standard Convenience Driver Door
Priority
* default setting
1. Ignition Controlled Door Locking. Selects whether or not the system automatically locks
the doors when the ignition is turned on. When selected, the Ignition Controlled Door
Locking feature will automatically lock the doors 10 seconds after the ignition key is turned
on.
To prevent the keys from being locked inside the vehicle when Ignition Controlled Door
Locking is on:
• The system will not lock the doors if any door is open when the ignition is turned on.
• The system will not lock the doors if any door is opened during the 10 second
countdown.
2. Ignition Controlled Door Unlocking. Selects whether or not the system automatically
unlocks the doors when the ignition is turned off. When selected, the Ignition Controlled
Door Unlocking feature will automatically unlock the doors when the ignition key is turned
off.
3. Logic Sensor II - Warn Away Level. Allows you to set the level of the Logic Sensor II’s
Warn Away sensitivity. When High is selected, a lighter impact will produce a warning chirp,
while the Low setting requires a stronger impact.
4. Audible Tamper Alert Report. When Audible Tamper Alert is selected, the siren will chirp to
indicate which zone had triggered the system, upon disarming.
If the system was triggered, the siren will emit one long chirp, followed by a series of short
chirps indicating the violated zone.
no chirp = ignition
1 chirp = door

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2 chirps = Logic Sensor II

3 chirps = Optional sensor
4 chirps = hood/trunk
When Audible Tamper Alert report is turned off, the siren will emit a long chirp on disarming
to indicate the system was triggered, but the zone indication will be from the status LED
only.
5. Door Unlock Pulse - Single/Double. Selects between a single pulse or a double pulse
door unlock output.
On many late model Nissan vehicles, as well as some European makes, the factory door
locking system requires two pulses on the proper wire to unlock the vehicle’s doors. By
programming the system for double pulse door unlocking, these systems can be interfaced
directly without the use of relays or any additional circuitry.
6. Auto Rearm. When selected, the system will automatically rearm if no other activity is
detected within one minute of Remote Disarming.
One minute after Remote Disarming, the system will alert you with a 10 second series of
chirps, then arm. (If the Passive Door Locking feature is selected during the installation, the
system will also relock the doors.)
Any of the following will cancel Automatic System Rearming:
• Turn on the ignition.
• Open the Trunk or Hood.
• Activate Auxiliary Function 1 or 2.

Automatic System Rearming is independent of Passive Arming and only takes place if the
system was Armed (actively or passively) for at least 20 seconds and then Disarmed by the
Remote Transmitter.
7. Entry Delay for Passive Arming. When selected, the door input trigger will be delayed for
10 seconds, allowing access to the emergency override switch. During the delay cycle, a
series of warning chirps wil be heard until the system fully triggers. Only delays when the
system is armed passively.
8. Trunk Bypass. When selected, pressing an auxiliary function to open the trunk while the
system is armed will allow the trunk to be accessed without triggering the alarm. The Logic
Sensor, optional sensors, and trunk pin switch will be disabled until the trunk is closed.
9. Illuminated Exit. When selected, the vehicle’s dome light will illuminate for 20 seconds
when the ignition is turned off.
10. Auxiliary Function 2 - Momentary / Latched / Timed Operation. (resets with arm and
disarm) Selects between Momentary, Latched, or Timed output for Aux. 2.
When Momentary operation is selected, the system will provide an output for as long as
the Transmitter button is held.
When Latched operation is selected, the system will provide an output that turns on when
the transmitter button is pressed and turns off when the transmitter button is pressed again.
When Timed operation is selected, the system will provide an output that turns on for 30
seconds each time the transmitter button is pressed. If the button is pressed again during

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the 30 seconds, the output will turn off.

When the Latched or Timed outputs are activated:
• Arming the system will turn off the Aux. 2 output if it was turned on while the system was
disarmed.
• Disarming the system will turn off the Aux. 2 output if it was turned on while the system
was armed.
11. Logic Sensor Defeat (Dedicated Remote Start Mode). When selected, this feature will
allow the user to temporarily disable the Logic Sensor II using the Remote Transmitter.
When the Off position is selected, the Logic Sensor will operate normally.
When the Aux 1 position is selected, pressing Auxiliary function 1 will temporarily disable
the Logic Sensor until the next time the system is armed.
When the Aux 2 position is selected, pressing Auxiliary function 2 will temporarily disable
the Logic Sensor until the next time the system is armed.
This feature allows a remote starter to be connected to either Auxiliary function 1 or 2
12. Transmitter Operating Mode. Selects one of the three Remote Transmitter Operating
Modes: Standard Mode, Convenience Mode, and Driver Door Priority Mode. See Remote
Transmitters - Transmitter Operating Modes.

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Logic Sensor II
Because of its advanced design, the Logic Sensor II can be set for Shock and Motion
detection or Shock detection only. The way the sensor is mounted and the Motion
Sensitivity jumper is set determines if motion is detected. See Mounting Components and
Jumper Selections.
Adjustment
The shock sensitivity of the Logic Sensor II is set using the Remote Transmitter. There are 12
levels of sensitivity.
• If the sensitivity is set to Level 1, the Logic Sensor II is off.
When the sensitivity is set to Level 1, the siren will emit 1 chirp, followed by 3 chirps each time the system is
Armed to indicate that the Logic Sensor II is off.
Logic Sensor II Sensitivity

Level 1 2 12
off lowest highest

To Adjust the sensitivity:

1. Turn the ignition key on.
2. Within 4 seconds, press Transmitter Button 1.
• The siren will chirp (1 through 12) to indicate the current sensitivity level. The
default shock sensitivity setting is 6.
3. Test the sensitivity. The siren will respond with a short chirp when shock or motion is
detected.
Be sure that the Logic Sensor II is mounted horizontally if motion detection is desired.
4. To make adjustments:
Press Button 1 to increase the sensitivity.
Press Button 2 to decrease the sensitivity.

• The siren will chirp to indicate the sensitivity level each time the Button is pressed.
5. When you are satisfied with the sensitivity, turn off the ignition.

Motion Sensitivity
The motion sensitivity of the Logic Sensor II can be fine-tuned through internal jumper
selection. There are two settings for motion sensitivity, High and Low. The default setting
is Low. To change to setting the setting, see Jumper Selections.

Warn Away Sensitivity

The sensitivity of the Logic Sensor II’s Light Impact Response can also be adjusted. There
are two settings for Warn Away, High and Low. The default setting is High. To change the
setting, see Programming.

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Remote Logic Sensor II Bypass

In case of extreme weather conditions such as high winds, the Logic Sensor II can be temporarily
bypassed from the Remote Transmitter while the system is armed to prevent the system from
false alarming.
To Bypass the Logic Sensor II:
1. With the system armed, press the Mode Button on the Remote Transmitter 3 times,
holding down on the third press.
2. Continue holding the Mode Button.
• After 5 seconds, the LED on the Remote Transmitter will begin to flash rapidly.
• The siren will chirp 3 times, indicating the Logic Sensor II has been bypassed.

3. Release the Mode Button.

• The Logic Sensor II will remain bypassed until the next time the system is armed.

Full Time System Diagnostics

The system continuously monitors all protected zones, even when it is not armed, and warns you
if it detects a problem when you turn off the ignition.
1. Turn off the ignition.
2. If the siren chirps twice, the system has detected a problem.*
3. The status LED will flash to indicate the zone where the problem has been detected.
1 flash = door
2 flashes = Logic Sensor II
3 flashes = optional sensor
4 flashes = hood / trunk
* The system must see the zone open or active for at least 20 seconds before the zone is determined to be defective.
This way, opening the car door before turning off the ignition will not cause the siren to emit the warning chirps.

Tamper Alert
On Disarming, if the system responds with one long chirp, indicating the system was triggered,
the LED will flash for 60 seconds to indicate the zone that triggered the system. If the Audible
Tamper Alert Report feature is turned on during installation, the siren will chirp to indicate the
triggered zone.
LED Flashes (60 seconds):
1 flash = door
2 flashes = Logic Sensor II
3 flashes = optional sensor
4 flashes = trunk
example: flash-flash-pause-flash-flash-pause = Logic Sensor

Siren Chirps (once only)

1 chirp = door
2 chirps = Logic Sensor II
3 chirps = optional sensor
4 chirps = trunk

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Reference Chart
You can use this chart to quickly identify and interpret the MS5500 system’s chirp indications and
LED flashes.

Output When Status

1 chirp arming normal arming
1 + 3 chirps arming Logic Sensor II sensitivity is off
1 + 4 chirps arming door, hood, or trunk is open

Double chirps while armed system triggered

(Passive Arming Entry Delay)

2 quick chirps arming Valet Mode is on

LED double flashes Valet Mode Starter Defeat Activated

2 chirps disarming normal disarming

1 long chirp disarming Tamper Alert - system was triggered

no chirps after Tamper Alert ignition
1 chirp after Tamper Alert door
2 chirps after Tamper Alert Logic Sensor II
3 chirps after Tamper Alert optional sensor
4 chirps after Tamper Alert hood or trunk

no LED flashes after Tamper Alert ignition

1 LED flash after Tamper Alert door
2 LED flashes after Tamper Alert Logic Sensor II
3 LED flashes after Tamper Alert optional sensor
4 LED flashes after Tamper Alert hood or trunk

1 chirp while armed Warn Away

5 quick chirps while armed Dedicated Remote Start Mode

activated
3 quick chirps while armed Logic Sensor II Defeat activated

Double chirps 1 minute after disarming Automatic Rearming

(for 10 seconds)

LED flashing quickly ignition key off Passive Arming sequence started

Two chirps ignition key off Full Time System Diagnostics

1 LED flash after Full Time Sys. Diag. door
2 LED flashes after Full Time Sys. Diag. Logic Sensor II
3 LED flashes after Full Time Sys. Diag. optional sensor
4 LED flashes after Full Time Sys. Diag. hood or trunk

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Door Lock Diagrams Negative Trigger

White/green = (-) Lock / +12v Unlock

White/blue = (-) Unlock / +12v Lock

Positive Trigger Voltage Reversal

Aftermarket Actuators Vacuum Lock System

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Driver Door Priority (-) Door Lock wire

Wiring Diagrams
LOCK/UNLOCK
White/green wire (-) Door Unlock wire SWITCH
(-) LOCK

White/blue wire
(-) UNLOCK

For a description of Driver’s Door Priority

Mode, see Remote Transmitters - FACTORY DOOR LOCK MODULE
15A FUSE
Transmitter Operating Modes.
CONNECT
TO +12V

Negative Trigger System

For negative trigger door locking CUT

systems, wire as shown at right. Yellow/white wire

(-) AUX. 1 output

PASSENGER DOOR
ACTUATORS

DRIVER DOOR
ACTUATOR

(+) Door Lock wire

LOCK/UNLOCK
White/blue wire (+) Door Unlock wire SWITCH
(+) LOCK

White/green wire
(+) UNLOCK

FACTORY DOOR LOCK MODULE

15A FUSE

CONNECT
TO +12V

Positive Trigger System

Yellow/white wire
CUT
For positive trigger door locking
(-) AUX. 1 output

PASSENGER DOOR
systems, wire as shown at left.
ACTUATORS

DRIVER DOOR
ACTUATOR

LOCK/UNLOCK
15A FUSE
SWITCH

CONNECT
TO +12V

CUT
White/green wire
(-) LOCK

CUT
White/blue wire
(-) UNLOCK

Voltage Reversal System

-or-
PASSENGER DOOR
ACTUATORS

Aftermarket Actuators
For voltage reversal door locking Yellow/white wire
(-) AUX. 1 output
CUT

systems, wire as shown at right.

DRIVER DOOR
ACTUATOR

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Tech Tips
The following are some suggested uses for the programmable Auxiliary Function 2 Output.

Remote Control of Audio System To Vehicle Radio Wiring Harness

(Latched Operating Mode)

This enables the user to listen to the vehicle’s

audio or video system for extended periods
without need of the vehicle’s ignition key.

When the Aux 2 function is pressed, the radio CUT

will turn on until either the Aux 2 function is Yellow/black Wire

Aux Function 2
pressed again, or the user arms the alarm. In Output

this manner, the user cannot forget to turn off Radio

Memory Wire
Radio
Ignition Wire
the radio and drain the vehicle’s battery.

Normal operation of the audio system using the

ignition key is unaffected.

Remote Headlight Activation

To Vehicle Headlight Switch
(Timed Operating Mode)

This enables the user to conveniently light the CONNECT

path to their door for nighttime safety. TO +12V

When the Aux 2 function is pressed, the

vehicle’s headlights will turn on for 30 seconds,
then turn off. Yellow/black Wire
Aux Function 2
Output

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Notes

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MS5500 Wiring Diagram

Ungo Security Corporation

A Clarion Company
661 West Redondo Beach Blvd.
Gardena, CA 90247
800-Go-Clarion
www.clarionmultimedia
© Ungo Security Corporation, Gardena, CA 98-MS5500-00 Rev. 1 (11/98)