3026143 - E2011 DIPPED HEADLAMPS - Functional description

Functional description

The dipped headlamps activation signal is sent to pin 4 of connector D of the Body Computer M1 from the steering column switch unit H5 . The 'ignition ON' signal (INT) for the switch H1 reaches the underdashboard control unit B2 at pin 11 of connector H and from there moves on to the Body Computer M1 (pin 9 of connector F). The Body Computer M1 controls the supply of the dipped headlamps sending an earth signal to the underdashboard control unit B2 - from pin 8 of connector F of M1 - which energizes the relay T1: this supplies the dipped headlamps F10 (left) and F11 (right). Each circuit is protected by a control unit B2 fuse: F13 for the left headlamp and F12 for the right one.