Theft alarm system – circuit operation

THEFT ALARM SYSTEM – CIRCUIT OPERATION

Handset Transmitter Resynchronisation

The Theft Alarm Unit (Z163) will remain synchronised with the handset unless: The handset’s batteries have been removed
The vehicle’s battery has been disconnected
NOTE: All handsets must be resynchronised when the vehicle’s battery has been disconnected. To resynchronise a handset the vehicle must be in an unlocked and disarmed state. Resynchronisation consists of 4 presses of either the lock or unlock button.

Handset Low Battery Warning

When the handset batteries are low, the Theft Alarm Unit (Z163) will enter the “low battery mode”. The Theft Alarm LED will flash to indicate “low battery mode”, and the hazard lamps will not flash when the alarm is disarmed.

Interior Lamps

The Theft Alarm Unit may be configured to perform full interior Lamp delay and soft-fade functionalities.

Power Up Mode

The alarm system always remembers the state it was left in when power was removed. If the alarm powers up in an alarmed state, it will enter a special “power up mode”.

Emergency Key Access (EKA)

EKA is used to disarm the theft alarm and mobilise the vehicle in the event of a handset failure. This is possible through a series of locks and unlocks with the key in the driver’s door lock cylinder. With the vehicle locked and the alarm armed, turn the key the required number of times according to the following sequence: 1. To enter the first digit, turn the key the required number of times to the unlock position. 2. To enter the second digit, turn the key the required number of times to the lock position. 3. To enter the third digit, turn the key the required number of times to the unlock position. 4. To enter the fourth digit, turn the key the required number of times to the lock position.

5. Turn the key to the unlock position to unlock the doors, disarm the alarm, and mobilise the vehicle. NOTE: The key must be fully turned to the rest and lock/unlock position each time. If the wrong EKA code has been entered, an audible warning will be heard. After 3 wrong attempts, you must wait 30 minutes. To clear a partially entered code, simply hold the key in the lock position for at least 5 seconds.