Tips For Troubleshooting - Carpal LX24 User Manual

be pull out straightly, don't fold, cut short, or touch with other things. See Alarm System Wiring Diagram.
2. SHOCK SENSOR INSTALLATION After installing the main unit, mount the shock sensor under the
dashboard and stick it closely to the inner wall of vehicle body without any shock pad. Please remember the
position where the shock sensor is mounted. It will cause false alarm if it is too sensitive, or it will fail to
alarm if it is too insensitive. The sensitivity of shock sensor can be adjusted moderately according to the
environment and user's demand to make it work reliably. There is a LED light and a small sensitivity switch
on the shock sensor body. When shock sensor is triggered, the LED light will be on. Adjust the switch to
"L" direction to reduce sensitivity, to "H" direction to increase sensitivity. Note: factory setting is adjusted
optimally. Don't adjust it if not necessary.
3. CENTRAL DOOR LOCK SYSTEM INSTALLATION In case you vehicle is not furnished with a
central door locking system, it is suggested to buy and install a central door locking system ( most vehicles
door trigger is negative , so mostly see negative type Figure A as reference ), then the alarm system can
work with the central lock system, the transmitter can remotely control door locking and unlocking.
Central lock system installation method: remove the door trim first, find a suitable location near the manual
switch lever inside door to mount the central-locking. Use the fittings provided to fix the lever of the
manual switch and the central-locking motor together, in this way, the motor will actuate the door lock
lever.
If the car is originally equipped with a central-locking system, then please refer to below these four types of
wiring diagrams to connect the central locking system with car alarm system, though there are many
different models of central locking systems, but mostly they are divided into these four types.
A. Negative Trigger Type: if the car is originally equipped with a central-locking system, and there is a
seesaw switch near dashboard which controls the other 3 door locks, therefore, the first thing is to find
out whether it is negative trigger or positive trigger. If it is negative trigger, please see Figure A for
wiring. Applicable car models: HONDA, TOYOTA.
B. Positive & Negative Trigger type: if the car is originally equipped with a central-locking system, but the
driver's door contains only one switch which drive the other 3 doors to lock and unlock, therefore, a
two-wire actuator must be fitted in the driver's door to drive the door latch lever and the switch. See
Figure B. Applicable car models: FORD, MITSUBISH, MAZDA, and NISSAN.
C. Positive Trigger Type: if the car is originally equipped with a central-locking system, and there is a
seesaw switch near the dashboard which controls the other 3 door locks, therefore, the first thing is to
find out if it is negative trigger or positive trigger. If it is positive trigger, please see Figure C for wiring.
Applicable car models:. RENAULT, GM ( mostly USA made car )
D. Pneumatic Central-locking Type: if the central locking system is pneumatic actuation not a power lock as
above mentioned, please see Figure D. Applicable car models are : AUDI, MERCEDES-BENZ.
E. In case there are other vehicle models central lock system which are not listed here, generally see Figure
A as reference.
1. The siren keeps sounding after the main unit is installed, even it can't be stopped with the
transmitter.
a. check if the wire connection is correct
b. check if the power supply fuse is burn out.
c. Check if the transmitter code matches the main unit code.
2. The central locking system doesn't work well.
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TIPS FOR TROUBLE SHOOTING