Specifications

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GENERAL OPERATION
SYSTEM DESCRIPTION (10AS ALARM SYSTEM)
INTRODUCTION
The 10AS Alarm system was fitted as standard equipment on Model Year 96 on-
wards across a number of Land Rover vehicles. The system consists of a number
of components as follows :-
• ECU Alarm Unit
• Plip Key
• Passive Immobiliser Coil (Optional)
• Alarm sensor (Optional)
• Central Door Locking Actuators
• Bonnet Switch (Optional)
• Driver’s Door Key Switch
• Door Switches
• Boot Door Switch
• Hazard Lights
• Battery Backed up Alarm Sounder (Optional)
• Alarm Sounder and Relay (Optional)
• Alarm LED and Engine Immobiliser Lamp (Instrument Cluster)
• Engine Immobiliser ECU
The 10AS offers a number of protection functions including Perimetric protec-
tion, Engine immobilisation (Crank Inhibit), Engine Immobilisation (ECU Inhibit)
and ultrasonic protection within the vehicle passenger compartment.
Central locking is also controlled by the 10AS Alarm system. The vehicle can be
locked using the key, Door Locking button or Plip key. The vehicle can only be
unlocked using the Plip key or the emergency access code (EKA).
PERIMETRIC PROTECTION
This part of the system is enabled whenever the vehicle is manually locked using
the drivers door key.
VOLUMETRIC PROTECTION
This part of the system is only activated using the Plip Key, which enables pro-
tection for the bonnet, boot and ignition switch. Also the internal Alarm sensor is
activated.
ALARM SOUNDER
If the vehicle is detected as having an unauthorized access, the alarm sounder
and hazard lights will start for around 30 seconds. The alarm must be triggered
again before the sounder and hazards will start. There are two sounders used,
normal sounder and battery back up sounder.
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