Uniden Automobile Accessories VS235XR User Manual

®
VS235XR / VS255XR  
Self-Contained, RF Remote-Controlled Vehicle Security System  
Rechargeable backup battery capability  
3-channel transmitter  
With rolling code & code learning technology  
STANDARD FEATURES  
l RF Remote Control — Comes with  
VS235XR / VS255XR  
COMPARISON  
VS235XR  
VS255XR  
Flashing Light Relay Output  
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9
slim-line transmitter.  
Door Lock/Unlock Output  
l RF Panic Alert — Pressing  
Alarm Status LED  
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6
transmitter button #1 for 3 seconds  
Negative Door Input  
will sound the siren.  
Number of Wires  
l Quiet Mode — Pressing transmitter  
button #2 followed by button #1 will arm or disarm the alarm without chirping.  
l Audio Confirmation — Siren chirps once when armed, twice when disarmed, and  
three times for zone override (such as a door is open when armed).  
l Multi-use Remote Control — Transmitter button #2 can also be used to open or  
close a garage door when used with the optional SEA910 receiver or control another  
Uniden VS1100XR or VS2100XR.  
l Alarm Status LED — The LED will indicate whether the alarm is armed (LED  
flashes) or disarmed (LED is off), also which sensor was triggered.  
l Unique Built-In Electromagnetic Shock Sensor (with pre-intrusion feature)  
Revolutionary sensitivity-stable design ensures the sensor never needs readjusting  
once it is installed. Constructed to eliminate contact problems associated with  
corrosion, cold-soldering, and condensation. If there is a light shock to any part of  
the vehicle, the siren will "chirp," but the alarm will not trigger. If a harder impact is  
made to the vehicle, it will trigger the alarm and sound the siren.  
l Complete Protection for the Car — The alarm triggers when:  
1. A drop in current from the car's battery is sensed (e.g. when domelight comes  
on).  
2. Shock or impact to the car is sensed.  
3. Any attempt is made to start the car engine when the alarm is armed (starter  
sensing).  
4. Any door of the car is opened.  
l 115dB Siren — Will blast for 25 seconds upon intrusion and will reset automatically.  
l Car's Door Lock/Unlock — Locks or unlocks the doors when the alarm is armed or  
disarmed. (VS255XR only) Optional accessories may be required.  
l Parking Lights and Car Locator — One flash for arming, two flashes for disarming,  
3 flashes for tamper zone overridden and 4 flashes for tamper indicator. (VS255XR  
only)  
l Door Switch Input — Normally-open (N.O.) negative trigger input.  
l Backup Battery Capability — Use a rechargeable 9V Nickel-Cadmium battery (not  
included) to provide backup power to the alarm.  
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Turning the ignition key ON will trigger the alarm for 30 seconds.  
The optional Engine Immobilizer prevents the car from being started.  
If the shock sensor detects light taps on the car, it will trigger the pre-intrusion alert (the siren chirps  
three times, and the parking lights flash three times [lights flash for VS255XR only]) to warn potential  
thieves and vandals. However, if the shock sensor detects a strong shock to the car, such as shock  
caused by prying the Boot open, it will trigger the alarm for 30 seconds. (See DUAL-STAGE SHOCK  
SENSOR.)  
CHIRP DELETE (silent arm/disarm)  
There are times, especially at night, when you may not want to hear the siren chirps.  
Just press button #2 any time before you need the chirps deleted. For instance, press button #2 before  
you press button #1 to arm or disarm the alarm, and the chirps will not sound, but the parking lights will still  
flash (lights flash for VS255XR only). The chirps are restored the next time you press a transmitter button.  
NOTE — This function deletes the chirps for disarm, zone bypass, sensor bypass, valet, and tamper.  
However, it does not affect the flashing parking lights. (VS255XR only)  
VALET  
Sometimes you may not wish to arm your alarm when you leave your vehicle. (For instance, if you leave  
your car with a valet attendant, you may not want to teach him how the alarm operates.)  
To enter valet, first disarm the alarm and turn the ignition ON/OFF 4 times within 15 seconds. The alarm  
is now in the valet mode. The siren chirps and the parking lights flash once to confirm (lights flash for  
VS255XR only). Your alarm also goes into valet when you use emergency disarm. (See EMERGENCY  
DISARM).  
To exit valet, just turn the ignition ON/OFF 4 times within 15 seconds. The siren chirps twice and the  
parking lights flash twice (lights flash for VS255XR only) to confirm valet is exited and the alarm is  
disarmed.  
If you press transmitter button #1 while the alarm is in valet, the alarm will not arm but the doors will lock  
or unlock, and the parking lights will flash four times (VS255XR only). The alarm's emergency call for  
help operates normally.  
DUAL-STAGE SHOCK SENSOR  
Your alarm includes a patented dual-stage shock sensor.  
The first stage (pre-intrusion alert) warns thieves the alarm is armed. For instance, the alarm will chirp  
three times and the parking lights will flash three times (lights flash for the VS255XR only) if the sensor  
detects a light bump to the vehicle. However, if the thief attacks the car with sufficient force, the alarm will  
trigger.  
Your dealer can make the shock sensor more or less sensitive to attack, depending on your vehicle.  
POWER DOOR LOCKS (VS255XR only)  
With this optional feature, your alarm can automatically lock the doors when armed and unlock the doors  
when disarmed. The doors lock and unlock any time transmitter button #1 is pressed (exception — See  
EMERGENCY CALL FOR HELP ). For extra security, they lock automatically if the alarm is triggered.  
Extra accessories may be required, i.e. SEA169 Interface, SEA170 Door Motor.  
ENGINE IMMOBILIZER SEA865  
With this optional feature, while your alarm is armed, your car will not start.  
TAMPER INDICATOR  
If your alarm was triggered when you were away, the siren will chirp four times and the parking lights flash  
four times, then turn ON for 6 seconds when you disarm your alarm.  
These "memory" flashes automatically reset when the ignition is turned ON.  
OPTIONAL BACKUP BATTERY  
With main power disconnected, the backup battery will normally last for at least 24 hours, assuming the  
alarm was not triggered. If triggered continuously, it would last for approximately 6 minutes. A 9V  
rechargeable Nickel-Cadmium battery must be used. The alarm will recharge the battery automatically.  
CODE LEARNING  
The alarm can learn a maximum of 4 remotes. RF CodeWash™ deletes all previous remotes when any  
new remote is learned. This prevents unauthorized use of lost or stolen transmitters, and alerts the user if  
someone has secretly code- learned a new transmitter. However, it also means that, when code-learning  
is being done, ALL THE USER'S TRANSMITTERS MUST BE CODE LEARNED AT THE SAME TIME.  
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A. Procedure:  
(1) Disarm the alarm.  
(2) Turn the ignition switch ON/OFF 4 times within 15 seconds.  
(3) Within 15 seconds, hold the first transmitter, and then push buttons #1 and #2 together until 1 chirp  
confirms the code is learned (approximately 4 seconds), and that all previous transmitter codes  
have been deleted. If no button is pressed within this 15-second period, code learning is exited,  
and the old codes are retained.  
(4) Within 15 seconds, push button #1 and #2 of the second transmitter (if available) together for at  
least three seconds. One chirp confirms learned.  
(5) Repeat step (4) until a maximum of 4 transmitters are learned. The siren chirps once for each  
transmitter when its code is successfully learned.  
B. Exit the code learning procedure — The alarm chirps the siren three times, exits the code learning  
mode, and is disarmed if you learn the fourth transmitter's code, or if you turn the ignition switch ON, or  
if you do nothing for 15 seconds.  
Appendix 1 — UNDERSTANDING THE SIREN CHIRPS AND LIGHT FLASHES  
NOTE: Lights flash for the VS255XR only.  
A. 1 chirp/flash:  
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When transmitter button #1 is pressed, the alarm is armed.  
Successfully entered the valet mode.  
B. 2 chirps/flashes:  
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When transmitter button #1 is pressed, the alarm is disarmed.  
Successfully exited the valet mode.  
C. 3 chirps/flashes:  
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Pre-intrusion warns potential thieves or vandals who trigger the first stage of the dual-stage sensor  
that your car is protected by an alarm.  
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When pressing transmitter button #1 to arm the alarm, indicates the alarm arms even though it is  
not set properly (door not closed, or broken switch, or domelight is still ON, see ZONE BYPASS).  
When pressing transmitter button #1 then #2, indicates sensor bypassed (see SENSOR BYPASS).  
Completed emergency disarm.  
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D. 4 chirps/4 flashes:  
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When the alarm is disarmed, indicates the alarm was triggered while you were away.  
When transmitter button #1 is pressed, indicates the alarm in valet (flashes only, no chirps).  
Appendix 2 — UNDERSTANDING THE LED FLASHES  
A. Armed indicator — Flashes when the alarm is armed.  
B. Disarmed indicator — OFF when the alarm is disarmed.  
C. RF reception indicator — ON while the transmitter button is pressed.  
D. Valet mode indicator — Flashes slowly if the ignition switch is turned OFF (no flash if the ignition is  
ON).  
Trigger zone indicator  
If the alarm has been activated while you were away, the LED will flash a code for 30 secs. after the alarm  
has been disarmed.  
EG... 1 flash  
— current sensor activation  
2 flashes — ignition/panic activation  
3 flashes — shock activation  
4 flashes — door /boot activation  
CHANGING THE TRANSMITTER BATTERY  
1. Unscrew the small screw and remove the top cover.  
2. Check that the battery clips are properly contacting the positive (+) and  
negative (-) ends of the battery.  
SEA172  
3. Reset the alarm by pressing the small button #1 on the left of the circuit board  
near the LED. If the alarm still does not operate properly, replace the battery.  
DO NOT TOUCH ANY OTHER PARTS OF THE TRANSMITTER.  
MAKE SURE THE POSITIVE AND NEGATIVE BATTERY ENDS CORRESPOND CORRECTLY TO  
THE POSITIVE AND NEGATIVE BATTERY CLIPS.  
4. Replace the front cover and the screw. Turn the screw tight enough to hold the case together, but not  
so tight that the case cracks.  
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TROUBLE SHOOTING  
In most cases, rare operational difficulties are the result of a weak transmitter battery. Below are the  
guidelines for solving the majority of the problems you may encounter. If you have not solved the problem  
after following these guidelines, contact a professional installer immediately.  
1. No siren sound or chirp when transmitter button is pressed for arming or disarming:  
a. Make sure the alarm's RED wire has power, and the BLACK wire is properly grounded.  
b. Replace the transmitter battery and check the clips for proper polarity.  
c. Recode the remote — see "Code learning."  
2. Transmitter works in some areas and not in other areas:  
This is probably due to excess RF activity in that area (usually just a short time and only while you are  
in that area, depending on the type of the activity). It is only temporary and won't affect the alarm in  
other areas.  
3. Alarm sounds for no apparent reason:  
a. Be sure that the transmitter button #1 is not being held down too long, or something in your pocket  
or purse is not pressing against the transmitter button #1. The receiver may also be picking up  
interference from a nearby airport, low-flying plane or other sources. Such interference is  
temporary.  
b. Check which zone was triggered — see "Triggered zone indicator."  
4. No chirp when arming, (lights flash 4 times and central locking operates VS255XR) Refer to VALET  
instructions to exit Valet Mode.  
Important: Do not make any repairs or adjustments to any component of the transmitter or the alarm other  
than changing the battery or checking the shock sensor adjustment as described.  
INSTALLATION MANUAL  
CONNECTION DIAGRAM  
* VS235XR comes with  
6-wires only  
BLACK ANTENNA WIRE  
(Do not cut or ground)  
Positive (+) terminal  
(Unswitched, constant,  
+12VDC input)  
RED  
15A  
YELLOW  
WHITE  
GREY  
Tr. GND. 0.5A output  
To Engine  
Immobilizer  
relay terminal #85  
Ignition switch (switched +12VDC input must  
have voltage during ignition and start)  
Lock 0.5sec. GND. output 0.3A  
(VS255XR only)  
To parking light  
Relay voltage output (10A max.)  
ORANGE  
10A  
(VS255XR only)  
Unlock 0.5sec. GND. output 0.3A  
(VS255XR only)  
BROWN  
BLACK  
Chassis ground  
BLACK/RED  
BLUE  
Arm LED  
Negative door switch  
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GENERAL CONSIDERATIONS  
INSTALLATION CONSIDERATIONS  
Important: Disconnect the fuse from alarm's red wire before beginning the installation.  
1. The alarm comes with a U-shaped mounting bracket which provides  
a solid mounting for the main unit. The main unit should be located in  
an inconspicuous place under the hood as far away from the engine  
as possible. Mount the siren trumpet pointing down so it does not  
collect water.  
IMPORTANT  
2. Solder all connections whenever possible. Do not run wires too tight.  
3. Run wires away from sharp edges which may cause short circuits.  
Protect wires with tubing or by wrapping with electrical tape. Use  
grommets when wires are run through holes in the car body.  
Fig. 1  
4. Run wires in such a way that the alarm is positioned higher than the wires (see Fig.1).  
5. Mount all components in such a way that the normal operation of the vehicle’s moving parts is not  
impaired or interfered with.  
6. Mount all components and run wires so they cannot easily be reached from under the vehicle by  
someone attempting to defeat the system.  
7. With the alarm disarmed, remove the battery cover and insert a 9V Nickel-Cadmium rechargeable  
battery (not included) to provide backup power to the alarm. If the main power cord is cut, the alarm  
will function normally for at least 24 hours, except current sensing.  
8. Mount the siren out of the direct path of water.  
TECHNICAL NOTES WHEN USING CURRENT SENSING  
(If current sensing is not desired, cut the purple loop in the unit)  
1. If the vehicle has a built-in noise filter that prevents the current sensing function from triggering the  
alarm, use a charged non-polarized capacitor (not included) of at least 47µF rated at 16V or higher.  
Connect it in parallel to the dome or courtesy light.  
2. False alarms may result if the alarm is over-sensitive, or if a built-in electrical device drains the battery  
when the vehicle is parked. In this case:  
a. Connect one lead of a non-polarized capacitor to where the alarm's red wire connects to power.  
Connect the other lead of the capacitor to the chassis.  
b. For vehicles with a built-in impulse winding clock that draws current when the clock is winding,  
replace it with a constant-current clock or connect it to a separate battery.  
RED WIRE — Main power  
DO NOT CONNECT THE RED WIRE DIRECTLY TO THE BATTERY. Connect the red wire to an  
unswitched positive terminal of the fuse box, or to an (unswitched) source of +12VDC which is at least 1  
meter away from the battery.  
YELLOW WIRE — Ignition switch voltage input  
Connect to a fuse or a wire which outputs +12VDC when the ignition key is in the ON and START position,  
but not the ACC position. This wire must be connected at all times to ensure proper arming and  
disarming, as well as to operate the valet, emergency disarm, programming, and code learning process.  
ORANGE WIRES — To flash parking lights (positive output) VS255XR only  
A. Determine if the parking lights are positive or negative switched — Using a VOM meter, test the wires  
coming from behind the light switch. Look for a wire which changes polarity when the parking lights  
are turned ON:  
(1) Positive (+) parking light system — If a wire goes to +12VDC when the parking lights are turned  
ON, but shows no voltage with the parking lights turned OFF, this is the (+) parking light wire.  
(2) Negative (-) parking light system — If a wire goes to ground when the parking lights are turned ON,  
but shows no ground with the parking lights turned OFF, this is the (-) parking light wire.  
(3) NOTE:  
a. Most vehicles have (+) parking light systems. A few (mainly Japanese) have (-) parking light  
systems (the (-) signal usually triggers a relay to send +12VDC to the parking lights).  
b. If the voltage on the (+) or (-) parking light wire varies when you dim or brighten the interior  
lights, then this is not the correct wire.  
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B. Connect the fused ORANGE WIRE:  
Fig. 2 — Flashing parking lights  
(1) Single-wire parking light systems — Most vehicles  
have a single circuit which controls all parking lights. In  
this case, connect the fused ORANGE WIRE to the  
(+) parking light wire. See fig. 2.  
Positive single-circuit parking lights  
10A  
Ø
ORANGE  
(2) Dual-wire parking light systems — A few vehicles (mainly  
European) have separate circuits for parking lights for the  
vehicle's right and left sides. In this case, connect the fused ORANGE WIRE  
to two relays, each of which feeds power to the two separate circuits. See fig.3.  
(3) Negative (-) parking light system — Connect the fused ORANGE WIRE to a relay. See fig.4.  
Fig. 3— Dual-wire parking light systems  
Fig. 4— Negative single-wire  
parking light system  
SP898  
SP898  
** DIODE SP898 (optional)  
To ORANGE  
WIRE  
To ORANGE  
WIRE  
87  
10A  
10A  
87a  
86  
85  
30  
SEA865  
SEA865  
SEA865  
Note: Uniden SEA865 relays already have the optional SP898 diodes fitted.  
BLACK WIRE — To chassis ground  
CHOOSE A GOOD CHASSIS GROUND LOCATION. If the ground is not connected properly, the alarm  
may act as if armed, but not be able to sound the siren. Scrape paint from the metal surface, and use a  
grounding lug and star washers for best results.  
BLUE WIRE — To car door switches  
If the vehicle has existing car door switches, locate a car  
door switch wire which changes polarity when any door is  
opened:  
Fig. 5— N.C. Engine Immobilizer output  
SP898  
If the door switch wire shows ground when a door is  
opened (this is the case with most cars, including GM),  
connect to the blue wire.  
To alarm WHITE  
engine  
immobilizer  
output wire  
SEA865  
If the vehicle is not equipped with car door switches, or if  
the door switch wire shows positive when the door is  
opened, install pin switches SEA876 in each of the doors.  
Connect each of these switches to the alarm's BLUE wire.  
Ignition  
switch  
Starter  
solenoid  
WHITE WIRE — To engine immobilizer  
Connect to an optional 30A relay SEA865 to prevent the  
car from starting when the alarm is armed.  
A. Locate the starter solenoid wire (carries power from the  
ignition switch to the starter solenoid). This wire must show  
+12VDC only when the ignition is in the start position.  
B. Cut the starter solenoid wire.  
C. Test the starter solenoid wire as follows:  
(1) If the wire is cut before the engine is started, the engine  
should not turn over.  
Fig. 6— Alternate N.C.  
Engine Immobilizer  
SP898  
To alarm WHITE  
engine  
immobilizer  
output wire  
SEA865  
(2) If the wire is cut while the engine is running, it  
should not affect the engine’s operation.  
D. Connect the WHITE WIRE and the two halves of the  
cut starter solenoid wire to the relay as shown in fig. 5.  
E. If the engine still starts, connect terminal 86 to  
a wire which shows +12VDC when the engine is both  
starting and running (fig. 6).  
Ignition  
switch  
Starter  
solenoid  
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GREY AND BROWN WIRES — To automatic door lock/unlock (VS255XR only)  
The power door lock outputs may be connected to a car which has existing or add-on power door lock switching  
relays. The transistor ground output is high enough to energize most switching relays.  
When disarmed, UNLOCKS the doors with a 0.5 second ground output. When armed, LOCKS the doors with a 0.5  
second ground output.  
DO NOT CONNECT THESE POWER DOOR LOCK WIRES DIRECTLY TO THE DOOR LOCK ACTUATORS, AS  
THIS WILL DEFINITELY BURN OUT THE ALARM SYSTEM.  
Installation will vary from car to car, depending on the car's power door lock wiring. In most cases, a separate door  
lock interface module SEA169 is required. Mercedes and Audi owners will need a different model (SEA168).  
Please refer to the module's manual for more information.  
ADJUSTING THE SHOCK SENSOR  
1. Remove the back cover.  
2. Use a small, flat-blade screwdriver to turn the adjustment knob.  
3. When turned clockwise, the sensitivity is increased. If turned counterclockwise, the sensitivity is decreased. Do  
not overturn the potentiometer, as it may break, only 270 degree adjustment range.  
4. To test the sensitivity, kick a wheel lightly, and siren will "chirp," then kick hard enough to trigger the alarm at  
the desired point. If it does not "chirp," the sensitivity should be increased. If the wheel is lightly kicked and the  
alarm sounds, the sensitivity should be decreased. Check all wheels for consistency.  
Note — To prevent false alarms, the shock sensor will not trigger the alarm until 4 seconds after the alarm is armed  
and no further motion is detected.  
Fig. 7 — Plugging in the LED switch  
PLUG-IN LED 2-pin RED connector Fig. 7  
A. Determine where to mount the LED. The LED should be  
LED  
easily seen by potential thieves and vandals. However, do  
NOT mount where the LED is easily exposed to  
sunlight. Discuss the LED location with the customer before starting.  
SEA110  
B. Drill a 6 mm hole in the LED location.  
C. Run the LED connector through the hole, and then plug into the alarm brain’s 2-pin RED connector.  
IMPORTANT — The LED operates on +5V, not +12V. DO NOT CONNECT THE LED  
DIRECTLY TO THE CAR’S BATTERY, OR IT WILL BURN OUT.  
SPECIFICATIONS  
POWER: 12VDC. Negative ground ALARM DURATION: Automatically resets after one cycle of 30 seconds  
TRIGGER INPUTS: Current sensing, shock sensor, ignition sensing, and door switch  
ALARM OUTPUTS: Alarm status arming LED, engine immobilizer, flashing lights (10A relay output, VS255XR  
only), door lock/unlock (0.3A transistor ground output, VS255XR only)  
ARM/DISARM INDICATOR: 1 chirp signals arm, 2 chirps signals disarm  
TRANSMITTER/RECEIVER: Modulation — AM; Antenna impedance — 50 ohms; RF carrier frequency —  
304MHz; Digital Rolling Code — 1.8 x 1019 possible codes, up to 4 transmitters can be learned.  
ACCESSORIES INCLUDED:  
a. 2 RF transmitters with battery  
b. Siren/alarm brain and built-in shock sensor in one module  
d. Mountinghardware  
c. Operation/Installationmanual  
OPTIONAL ACCESSORIES:  
3 Button  
Remote  
(SEA933)  
Dual-stage  
glass-break  
sensor  
Engine  
Immobiliser  
Relay &  
(SEA857)  
Socket set  
(SEA865)  
Central Lock  
Interface  
(SEA169)  
and  
Make your alarm  
YOUR alarm!  
Your dealer has a wide variety of  
accessories which can increase your  
alarm's security and convenience.  
Ask for more information. And insist  
on GENUINE UNIDEN accessories!  
Garage Door  
and House  
Alarm  
Interface  
(SEA910)  
Door Lock  
Motor  
(SEA170)  
The Uniden policy is one of continual development and improvement.  
For that reason, Uniden reserves the right to change specifications without notice.  
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