223002228 - E3090 PARKING SENSOR - FUNCTIONAL DESCRIPTION

Functional description

When reverse gear is engaged, the positive signal for switching on the rear lights (    See E2022 REVERSING LIGHTS) passes through the short circuit coupling D97A . The positive supply for the parking sensor control unit M84 reaches pin 1 of connector A from pin 10 of D97A . The negative supply for the control unit M84 reaches pin 8 of connector A from the dashboard earth C15C .The parking sensor speaker P44 receives signals from pins 2 and 10 of connector A for the parking control unit M84 ; pins 9 and 6 of the same connector, on the other hand, are bridged.

The four parking sensors K97 are connected to sensor B of the control unit M84, respectively:

• to pins 5, 9, 12 sensor K97A ;
• to pins 7, 3, 10 sensor K97B ;
• to pins 1, 2, 6 sensor K97C ;
• to pins 8, 4, 11 sensor K97D .