Specifications

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GENERAL OPERATION

SYSTEM DESCRIPTION (5AS ALARM SYSTEM)

INTRODUCTION

There are a number of different systems fitted across the Rover vehicle

range, which vary slightly. The systems can only be enabled and disabled

using the Key Fob (PLIP). If the car is locked with the mechanical key

only, then the alarm is not enabled.

There are three ways the alarm works, one is to enable an ultrasonic

alarm, the second Perimetric protection and the other engine immobilisa-

tion. In addition to this it also operates the central locking.

When the system is armed or disarmed the hazard lights will flash de-

pending on which operation is performed. If the doors lock but the hazard

lights do not flash, then it is possible that one of the doors, boot or bonnet

is partially open.

PLIP KEY

This is a radio transmitter which has two buttons, one to arm the system

and one to disarm. When the system is armed the ALARM LED indicator

will flash quickly for 10 seconds, and then flash at a slower frequency.

The radio code signal is changed each time the PLIP key is used, and the

code is changed both in the handset and also the ECU on the vehicle. If

this sequence is broken, then the PLIP key can be re-enabled as follows :-

Procedure.

1. Unlock the drivers door using the key.

2. Ensure all doors, bonnet and boot are shut, and if Central Locking is

fitted, make sure both front doors are unlocked.

3. Press the PLIP key (Lock button) four times quickly, until the vehicle

locks are enabled.

ENGINE IMMOBILISATION

The engine is set as soon as the Perimetric alarm is enabled, which inhib-

its the engine electrical circuits. Immobilization can only be removed using

the PLIP key or using the emergency access code (EKA). If the car is not

locked using the PLIP key, the immobiliser will be activated 20 seconds af-

ter the ignition is switched off, and the drivers door opened. The engine

can be re-immobilized by pressing the unlock button on the PLIP key.