184001919 - E2012 MAIN BEAM HEADLIGHTS - FUNCTIONAL DESCRIPTION

Operational description

The dipped headlamps (earth) activation signal (stable mode) is sent to pin 4 of connector I of the Body Computer M1 from the steering column switch unit H5; the flasher activation (earth) signal (unstable mode) is, on the other hand, sent to pin 33 of connector G of the Body Computer M1.The Body Computer M1 controls the power supply for the main beam headlamps sending an earth signal to the engine compartment junction unit B1 from pin 9 of connector A of M1 which energizes the relay T2 which supplies the dipped headlamps F10 (left) and F11 (right). Each circuit is protected by a fuse for the junction unit B1F15 protects the left headalmp and F14 protects the right.The Body Computer M1 is connected via the CAN line to the instrument panel E50 to manage the "main beam headlamps" warning light.