S38 Security System User Guide

Thank you for purchasing the S38 self-powered alarm system, supplied with 1 touch key (to emergency-override the system and exclude the sensors) and 2 RFID transponders (TAG cards) to engage/disengage the engine immobiliser. Please read this guide carefully and keep it handy for future reference.

Operating Procedure

The alarm is operated via the vehicle’s original remote control. The built-in radio receiver also lets the owner wirelessly control the engine immobiliser from the TAG card.

System Arming

Press the lock button on the vehicle’s original remote control. Arming is confirmed by a beep and a flash of the turn indicators (if signals are enabled). Before it is fully armed, the system has a 30-second arming delay, signalled by the LED on steady.

System Arming with Sensor and Comfort Exclusion

To arm the system without internal volumetric protection (ultrasonic sensors), optional wireless PIR sensors and the comfort feature, proceed as follows:

1. Make sure the system is disarmed and the ignition key is OFF.
2. Touch the override key to its receptacle; the LED will flash quickly.
3. Close all vehicle doors and press the lock button on the original remote control.
4. Arming is confirmed by a bop and a flash of the turn indicators (if signals are enabled).

Exclusion of sensors and the comfort feature is bound to each single arming cycle and resets upon the next arming.

Passive Arming

When passive arming is enabled, the system automatically arms approximately 60 seconds after the ignition is switched off and the last door is opened and closed. Arming is confirmed by a beep and a flash of the turn indicators (if enabled). Internal sensors and comfort output (automatic window roll-up) are excluded. Opening a door during the 60-second countdown interrupts the procedure; it resumes once the door is closed.

Arming Delay

There is a 30-second delay from the time the system is armed to allow you to exit the vehicle without triggering an alarm, signalled by the LED on steady.

System Armed

After the arming delay, the system is fully armed and ready to detect any alarm event. The LED starts flashing to confirm the armed status.

Alarm, Inhibit Time and Alarm Cycles

Alarm events are signalled by optical/acoustic signals. Each event can generate up to 10 cycles for each input and each arming cycle, with a 5-second pause between cycles. One alarm cycle lasts 30 seconds.

System Disarming

Press the unlock button on the vehicle’s original remote control. Disarming is confirmed by 2 beeps and 2 flashes of the turn indicators (if enabled). If an alarm event occurred while you were away, it is signalled on disarming by 5 beeps and 5 flashes (alarm causes and LED signals are listed under Alarm Memory).

Emergency Override via Touch Key

The touch key overrides the system as an emergency backup and fully disarms it if the remote controls are lost or inoperative. Touching the key to its receptacle disarms and switches the system off; it will not rearm by pressing the remote lock button. To restore normal operation, touch the key to its receptacle again: a beep and a flash of the LED confirm the operation.

System Arming and Engine Immobiliser

The engine immobiliser prevents the engine being started illegally. Without a paired TAG, the immobiliser (if connected) engages when you arm the system and disengages when you disarm. With a paired TAG, the immobiliser is enabled when arming via the vehicle’s original remote but can only be disengaged when the TAG is detected.

If the TAG is detected before the original remote, the alarm stays armed and saves the TAG signal for 20 seconds, disarming only once it detects the original remote. If no remote is detected within 20 seconds, the alarm stays armed and deletes the TAG signal. The reverse also applies if the remote is detected first. There is a 6-second inhibit time on the door, boot and ultrasonic inputs to avoid false alarms; if this expires without the TAG being detected, an alarm cycle is triggered, and the alarm only disarms when it detects the TAG. Note: the immobiliser can be configured to arm automatically when the alarm is disarmed and no TAG is detected (default: disabled). If the TAG fails to work due to significant radio interference, use the touch key to disable the immobiliser.

Alarm Memory

The LED memory identifies the last alarm event, signalled by 5 flashes of the turn indicators and 5 beeps on disarming (if enabled). Turn the ignition key ON and count the LED flashes to identify the last alarm. The sequence repeats 3 times; to interrupt it, turn the ignition key OFF.

TAG Card and Battery Replacement

The RFID transponder (P/N SIG008) must be paired beforehand to engage/disengage the engine immobiliser, contact the installation dealership for assistance. To activate the transponder, press and hold the button for at least 4 seconds; the LED turns on steady when activated, then flashes each time data is transmitted. If no movement is detected for 10 minutes, the transponder goes into standby to save battery; move it or press the button to wake it for another 10 minutes. To switch it off, press and hold the button for about 10 seconds (the LED stays on steady, then flashes twice just before switching off).

To replace the battery:

1. Gently separate the plastic shells by inserting a flat-head screwdriver into the pry-off slot.
2. Carefully remove the circuit board.
3. Remove the discharged battery and insert a new one, taking care not to invert the polarity.
4. Reassemble the shells.

Technical Specification

• Power supply — 12 Vdc
• Current absorption (12 Vdc, armed, LED flashing) — 15 mA
• Working temperature range — -30°C to +70°C
• Turn-indicator relay contact capacity — 8 A at 20°C
• Engine-immobiliser relay contact capacity — 8 A at 20°C
• Alarm cycle duration — 30 sec
• Maximum positive current output when armed (+A) — 700 mA

Frequently Asked Questions