841007997 - E5061 ADAPTIVE CRUISE CONTROL OPERATIONAL DESCRIPTION
Operational Description
The adaptive cruise control system control unit M087 receives a supply controlled by the ignition (INT) at pin 12 via the line protected by fuse F35 of the junction unit under the dashboard B002.Pins 2 and 4 are dedicated to communication on the CAN (C-CAN H and C-CAN L). Pin 9 receives the setting of the distance that the driver has decided to keep from the vehicle in front (three position HEADWAY control) using the Cruise Control System control H007 (pin 3).Cruise Control H007 is ignition-operated ( INT ) at pin 2 , via a line protected by fuse F35 of underfacia junction unit B002.The control H007 is also connected to the engine management control unit (connector A):
at pin 10 with the ON / OFF signal;
at pin 42 with the RCL (RECALL) signal;
at pin 43 with the SET + signal;
at pin 58 with the SET - signal;
Pins 26 and 27 of connector A of the engine management control unit M010 receive the brake pedal pressed signals coming from the N.C. and N.A. contacts of the brake lights switch I030, respectively, with the supply controlled by the ignition (INT) from the lines protected by fuses F35 and F37 of the junction unit under the dashboard B002.The engine management control unit M010 distributes the brake pedal pressed signal to the other control units installed on the vehicle via the C-CAN line, pins 12 and 29 connector A.Pin 59 of connector A of engine control unit M010 receives a signal from the contact of clutch switch I031 , also for the purposes of programmed function deactivation.Pins 8, 40, 36, 7, 25 and 24 of connector A are connected to the accelerator pedal K055 in order to receive the function temporarily deactivated signal See E5030 PETROL ENGINE ELECTRONIC MANAGEMENTThe C-CAN line is responsible for connecting the engine management control unit M010 from pins 45 and 61 of connector A to the Body Computer, pins 32 and 33 of connector B. The Body Computer M001, in turn, transmits the B-CAN signal to the instrument panel which makes provision for the possible signalling of a fault by means of a message on the display and information from the system.The management of the braking if a vehicle or an obstacle is detected is entrusted to the braking system check control unit (brake assistance) M052.It is supplied directly from the battery at pin 3 connector A via the line protected by fuse F58 of the luggage compartment junction unit B045. The control unit also receives a supply controlled by the ignition (INT) at pin 4 connector A via the line protected by fuse F42 of the junction unit under the dashboard B002.Pins 13 and 14 connector A are dedicated to CAN communication through which the control unit receives the commands for the adaptive cruise control function for the management of the braking system. In particular, pin 13 C-CAN H and pin 14 C-CAN L.Control unit connector B is connected to separate wiring which is designed to manage the braking. The following are connected to it:
K140 : brake servo push rod position sensor (pins 1, 2 and 3)