3363780 - E3090 PARKING SENSOR - Functional description

Functional description

Parking sensor control unit M84 is supplied - pin 1 of connector A - from the INT line protected by fuse F49 of control unit B2 . The control unit is connected via CAN line to all other nodes on the network via pins 7 and 14; in this way it receives the reverse engaged signal, amongst other signals. Pin 8 is earthed while pins 2 and 10 are connected to parking sensor buzzer P44 . Pin 5 receives an inhibition signal if a trailer is connected. via coupling D73 See E2050  TRAILER WIRING . The four parking sensors K97 are connected to connector C of control unit M84 : pin 1 supplies a reference earth, pin 6 the power supply, pins 5, 3, 2 and 4 are connected to sensors K97A , K97B , K97C and K97D .