General description (page 2 of 2)

• two signals from the accelerometer N47: the vertical acceleration of the vehicle cause impulses to be sent to the control unit. These impulses correspond to two acceleration values: the first (ACCL) signals low acceleration (0.08g), pin D; the second (ACCH) high acceleration (0.16g), pin C. Pins B and A receive ground and supply respectively.
• a speed signal from the speedometer L17
• a braking signal from the brake fluid pressure switch L41

Processing of these signals by the stored logic of the control unit prepares the signals which are then sent to the solenoid valve controlling the shock absorbers (M17 front right; M18 front left; M19 rear right and M20 rear left).

In addition to the control signal coming from the control unit, each solenoid valve receives current from a relative relay with incorporated 30A fuse , of which the coil, under key operated supply via fuse F15 (20 A) in fusebox G1, is grounded by the control unit itself in this way powering the solenoid valve with voltage from the battery. A 0.22 µF condenser N61 has been installed to avoid radio interference on the wiring.