125000401 - 5520A IGNITION SWITCH
COMPOSITION
The diagram below illustrates the ignition switch.1 - Ignition switch2 - Ignition key3 - Electrical connectora - INTb - INT/Ac - POSd - PARKe - 50f - 30g - 15/54
OPERATION
The diagram illustrates the connections.1 - PARK: key can be removed from STOP to PARK by pressing the inhibitor button2- STOP: key can be removed3 - DRIVE: key cannot be removed4 - STARTING: key cannot be removed automatic return to ''DRIVE'' positionThe ignition key with a steering lock is a component which carries out the main function, through the insertion of a coded mechanical key, of supplying several circuits including the ignition/injection system, the engine starting and the services controlled by the ignition.The steering lock function is included amongst its tasks.The ignition key is equipped with an ''anti-repeater'' device which prevents the starting manoueuvre if the key is not returned to the STOP position.The steering lock has two safety devices so that if one of them is broken and the ignition key is in the ON position the steering column cannot be mechanically locked.If the parking lights button is pressed it is possible to move from STOP to PARK and it is automatically released by turning the key to the STOP position.
1 - Aerial for ALFA CODE2 - Aerial fitted on the switchThe ignition switch is also used as a support for the aerial needed in transferring the codes in the ignition key transponder and is used by the ALFA CODE system for releasing the injection control unit (NCM) and allowing the engine to be started up.The diagram below illustrates the switch electrical connections.
1 - To the IGN maxifuse (30A)2 - To pin 2 connector H dashboard junction unit (CPL)3 - To pin 1 connector H dashboard junction unit (CPL)4 - To pin 11 connector H dashboard junction unit (CPL)5 - To the starter motor (or Selespeed starting relay)6 - To pin 30 connector A engine compartment junction unit (CVM)