939011735 - E5010 STARTING AND RECHARGING - FUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
The START/STOP button H2 receives a power supply - pins 3 and 5 - from the steering lock control unit M89, which "relays" the direct power supply coming - at pin C1 of M89 - from the line protected by fuse F3 of the engine compartment junction unit B1.The lighting for the button is guaranteed by the ignition-controlled line (INT) protected by fuse F49 of the junction unit under the dashboard B2.When the button is pressed, "AVV" signals are sent from pins 4 and 6 of H2 to M89 - pins B6 and B7; tha latter supplies the electromagnet winding - from pin B8 - pin 50 of the starter motor A20 - connector B.The supply and control signals for button H2 are "redundant" (two identical duplicate signals) for safety reasons, the wish of the user is recognized by means of the presence of only one of the two signals. |