3315742 - E7015 ALARM - Functional description (Right hand drive)

Functional description

The alarm system is controlled by alarm control unit M30 integral with the siren. The control unit is supplied directly by the battery at pin 3 of connector A from the line protected by fuse F17 and at pin 7 of connector B (supply for the direction indicators) from the line protected by fuse F8 ; both fuses are located in the junction unit B1 . An ignition-operated power supply (INT/A) reaches pin 12 of connector B of control unit M30 . through a line protected by fuse F5 of control unit B1 . Pin 9 of connector A is earthed. Control unit M30 controls door closure via switches N50, N55, N51, N56, which send an earth signal to pins 8, 15, 9 and 16 of connector B respectively when the door is open (the same switches turn on the door open indication leds (  See E2510  COURTESY LIGHTS ). The bonnet lid is controlled by switch I10 , which is connected to pin 18 of connector B, while the boot lid is controlled by switch I11 , which is connected to pin 17 of connector B (the same switch turns on the boot light:  See E2520  GLOVE COMPARTMENT LIGHT - LUGGAGE COMPARTMENT LIGHT - SUN VISOR LIGHT ). Volumetric sensor unit K62 receives supply and earth signals from pins 8 and 11 of connector A of M30 , and sends on the alarm control signal to pin 12 of connector A of M30 . Pin 1 of connector A of M30 sends alarm led control signal E40 . Pins 1 and 2 of connector B of M30 produce control signals for turn signals (  See E2020  DIRECTION INDICATORS / HAZARD WARNING LIGHTS ). Remote control receiver M35 is supplied directly from the battery at pin 3. An ignition-operated power supply (INT/A) reaches pin 7 of M35 via a line protected by fuse F5 of control unit B1 . Pin 4 is earthed. M35 (pins 5 and 6) issue door lock and door release signals (  See E3040  CENTRAL LOCKING ). Pin 10 of M35 controls the opening of the boot, receiving the signal from the specific button located on the ignition key. Control unit M30 and receiver M35 are both equipped with a self-diagnostic system that may be used by connecting to connector R10 , pin 11. This receives signals from pin 6 of connector A of M30 and from pin 2 of remote control receiver M35 . This serial line also acts as a connection between M30 and M35 .