Incorrect reaction Scher Khan Logicar 1 response to commands from the key fob often indicates that the receiver is out of sync or the battery in the control panel is low. Unlike more complex conversational code systems, this model relies on static or simple dynamic code, making signal integrity verification a top priority during any failures. If the car stops locking the first time or ignores commands to open the trunk, the problem may not lie in a breakdown of the control unit, but in a banal failure of communication between the transmitter and the antenna module.
To restore normal operation of the security complex Scher Khan Logicar 1 It is necessary to sequentially check the condition of the remote control power supply and the quality of the antenna connection to the main unit. Users often encounter a situation where the LED on the key fob blinks, but the car does not respond, which indicates that the transmitter registration in the system memory has been lost. The operating instructions instruct in such cases to perform the procedure for re-recording the codes, after first making sure that the vehicle battery is in good condition and that there are no short circuits in the alarm power circuits.
It is important to understand that Logicar 1 is a reliable, but technically simple system that does not have the excessive noise immunity of expensive models. Therefore, the location of the antenna module on the windshield should exclude proximity to metallic tint films containing metal or additional electrical equipment that creates interference. Correct instruction manual implies not only knowledge of the buttons, but also an understanding of the logic of the operation of security modes, such as “Panic”, “Silent security” or hidden control mode.
Basic control and assignment of key fob buttons
The security complex is controlled via a four-button key fob with an LCD display or a two-button option, depending on the configuration. Each button performs strictly defined functions, which can change depending on the current state of the system (security on, ignition on, programming mode). Button I usually serves to turn on security and register, and the button II — to disarm and open doors.
- 🔒 Button I: Arming, locking the central locking, turning on the "Panic" mode with a long press.
- 🔓 Button II: Disarming, unlocking the central locking, exiting the “Panic” mode.
- 🚙 Button III: Remote engine start (if connected), trunk opening when briefly pressed in removal mode.
- 🔇 Button IV: Silent arming/disarming, control of additional channels, confirmation of programming.
When you press the button briefly I the system goes into security mode, which is accompanied by one siren signal and the flashing of the alarm system. If at the time of arming any door or hood is not closed, the system will warn you about this with four siren signals and four flashes of the emergency lights. Scher Khan Logicar 1 also supports the function of automatically locking the doors when driving, if this option has been activated by the installer through the programmable functions table.
⚠️ Attention: Do not leave the key fob with the "Panic" function activated in a place accessible to children, as long pressing the button can lock the car and turn on the siren at the most inopportune moment.
Key fob programming and synchronization
The procedure for writing codes for new remote controls into the control unit's memory is a critical operation that is often confused with regular flashing. To enter programming mode Scher Khan Logicar 1 requires performing a precise sequence of actions with the ignition key and the driver call button (Valet). An error in the timing or order of presses will exit the setup mode without saving the results, and the key fob will not control the car.
Technical nuances of synchronization
For successful recording, the ignition must be turned off and on within 4 seconds. If the system does not respond, check to see if the programming mode has timed out (10 seconds of inactivity).
Entering the programming mode is carried out as follows: you need to turn the key in the ignition switch three times from the position OFF to position ON (or start and stop the engine, depending on the input settings). After the third time, if the entry is made correctly, the siren will emit a short signal and the LED indicator will begin to flash rapidly, indicating that the system is ready for recording. From this moment on, the user has 14 seconds to press any button on the recordable key fob.
It is important to note that when recording a new remote control, the codes of all previously recorded key fobs can be erased if a certain sequence is not followed. Operating instructions recommends having with you all the remote controls that should work with this car, and re-registering them in one programming cycle. This will eliminate the situation when the new key fob works, but the old one stops responding to commands.
☑️ Checklist before programming
Table of programmable functions and settings
Flexibility of setting up a security system Scher Khan Logicar 1 is provided by a table of programmable functions, which allows you to adapt the operation of the system to the specific requirements of the owner and the characteristics of the car. The table is accessed through a service button or key fob, which allows you to change parameters without using complex diagnostic equipment. Factory settings may not be suitable for all situations, so knowledge of the function table is necessary for comfortable operation.
| No. Functions | Parameter description | Factory value | Setting options |
|---|---|---|---|
| 1 | Type of input for lock control | Negative | Positive, Variable |
| 2 | Locking pulse duration | 1 sec | 0.8 sec, 1.5 sec, 4 sec |
| 3 | Additional channel operating mode | Opening the trunk | Webasto control, light |
| 4 | Automatic door locking | Off | From the speed, from the brake pedal |
To change the value of a function, you must enter the programming mode, select the function number (usually using the key fob buttons), and then confirm the desired value. For example, function No. 12 allows you to configure automatic return to security mode if the door was opened and closed, but the owner forgot to press the button on the key fob. This is a useful option that prevents the car from being stolen during a short stop.
When setting the automatic door locking function (Function 14), it is worth considering the type of transmission installed. For vehicles with a manual transmission, it is recommended to set the locking trigger from the brake pedal to avoid the doors locking before the vehicle comes to a complete stop. Owners of automatic transmissions can use a trigger from the selector lever or simply from the fact of starting the engine, which will provide greater safety when driving.
Security modes and service functions
Security complex Scher Khan Logicar 1 offers several protection modes, each of which has its own characteristics of activation and operation of sensors. The main mode is full security, in which all perimeters are controlled: doors, hood, trunk, and a shock sensor and a call sensor from the passenger compartment also work. However, for everyday use, specific modes such as Silent Security or Panic mode are often required.
The "Panic" mode is activated by a long press of the key fob button and serves to scare away potential car thieves or attract attention in an emergency situation. In this mode, the siren sounds and the hazard lights flash, but the doors do not necessarily lock if they were opened. This allows the driver to quickly leave the car or, conversely, noisily make a statement. Operation logic This mode has priority and overrides most other commands.
⚠️ Attention: In Panic mode, the engine lock is not always active immediately; The main emphasis is on sound and light to attract attention. Do not rely on this mode as your only protection against theft.
The Valet service mode allows you to completely disable the security functions of the system for car maintenance or car wash. This mode is entered through a secret button or combination on the key fob. The system being in Valet mode often becomes the reason that the car owner considers the alarm to be faulty, although it is simply disabled by software. The status indicator in this mode is constantly lit or flashes quickly, signaling that the protection has been removed.
Tip: When handing over your car for a wash or service, always check that the Valet indicator is not on, so as not to leave the car unprotected, or vice versa, to not block access to the mechanics.
Troubleshooting and status codes
System status diagnostics Scher Khan Logicar 1 is done by analyzing the number of alarm flashes or siren signals when arming. These signals are codes indicating the specific zone that caused the alarm or a technical malfunction. Understanding these codes allows you to quickly isolate the problem, whether it's an unlocked door or a faulty hood switch.
The most common signal codes when attempting to arm:
- 🔴 1 signal: The system is operational, all zones are closed (normal setting).
- 🔴 2 signals: One of the doors is not closed (the system will indicate a specific door by flashing the indicator).
- 🔴 3 signals: The hood or trunk is not closed (check the limit switches required).
- 🔴 4 signals: Error during installation (perhaps the ignition is on or the sensor is faulty).
If the system produces 6 siren signals when disarming, this means that the shock sensor or an additional sensor was activated in the absence of the owner. Logicar 1 remembers the cause of the alarm and displays it on the key fob (if it is equipped with a screen) or reports it with a series of signals. In case of frequent false alarms of the shock sensor, it is recommended to reduce its sensitivity using the regulator on the antenna module or in the settings menu.
The main conclusion: 6 siren signals when disarming is not a breakdown, but a message that someone tried to influence the car in your absence.
Frequently asked questions (FAQ)
How to reset Scher Khan Logicar 1 to factory settings?
To reset settings to factory values, you must enter the function programming mode (see the programming section). Then you need to find a reset function (usually holding down certain key fob buttons for 10 seconds in setup mode) or physically turn off the power to the main unit for 15-20 minutes, although a soft reset is preferable for saving the registered key fobs.
Why doesn't the alarm detect the key fob even though the battery is new?
If replacing the battery does not help, the codes may have become out of sync. It is necessary to reprogram the key fob in the system memory. It is also worth checking whether the quartz resonator inside the key fob has not broken when dropped, which is a common cause of failure even with a working battery.
Is it possible to install Scher Khan Logicar 1 on a car with a diesel engine?
Yes, installation is possible, but for autostart to work correctly (if it is implemented), it is necessary to correctly configure the engine control. For diesel engines, control by tachometer (signal from the injector or generator) is more often used, since control by on-board voltage may not work correctly due to the heating characteristics of the glow plugs.
What does the flashing red LED on the key fob mean?
A fast flashing red LED usually indicates a low battery. If the flashing is accompanied by the vehicle not responding, try replacing the battery. If the LED flashes in a certain rhythm when buttons are pressed, this may be an indication of signal transmission or confirmation of command execution.