3315746 - 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 and at pin 7 of connector B (supply for the direction indicators) by the line protected by the fuse F66 in the luggage compartment junction unit B45. The supply controlled by the ignition (15/54) reaches pin 12 of connector B of control unit M30 via the line for relay T24 of B45 protected by fuse F78 of B45; Pin 9 of connector A of M30 is earthed. Control unit M30 controls door closure via switches N50, N55, N51, N56, which send an earth signal to pins 8, 16, 9 and 15 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 the direction indicators  See E2020  DIRECTION INDICATORS / HAZARD WARNING LIGHTS . The receiver for the remote control M35 is supplied directly by the battery at pin 3 from the line protected by fuse F66 of the luggage compartment junction unit B45. An ignition-operated power supply (INT/A) reaches pin 7 of M35 via the line for relay T24 of B45 protected by fuse F78 of junction unit unit B45. Pin 4 of M35 is earthed.M35 pin 1 sends a control signal to relay T26, located in the luggage compartment junction unit B45 to turn on the flashing side lights upon alarm system activation. M35 (pins 5 and 6) issue door lock and door release signals See E3040 CENTRAL LOCKING . Control unit M30 and receiver M35 are both equipped with a self-diagnostic unit that may be used by connecting the unit to connector R10 via pin 11. This receives signals from pin 6 of connector A of M30 and pin 2 of remote control receiver M35. See E8010  DIAGNOSTIC MULTIPLE CONNECTOR This serial line also acts as a connection between M30 and M35 .