3239526 - E7030 AIRBAG - Functional description (VDC)
Functional description
The Air Bag system control unit M60 receives a supply controlled by the ignition (INT) at pin 12 of connector A from the line protected by fuse F5 of the additional fuse box B98B. Pin 1 of connector A and pins 17 and 32 of connector B are connected to a specific earth C50.When frontal impact of a certain severity (depending on the software setting) is detected, the control unit sends control signals to set off the modules:
- to driver's Air Bag Q9, through a clockspring D47 (from pins 23 and 24 of connector A):
- to passenger side air bag Q11 (from pins 21 and 22 of connector A):
- to the front pretensioners on the driver's side Q20 (from pins 1 and 2 of connector B) and the passenger side Q21 (from pins 3 and 4 of connector B).
When side impact of a certain severity (dependent on the software setting) is detected, the control unit sends control signals to set off the modules:
- to the driver's side Air Bag Q30 (from pins 5 and 6 of connector B);
- to the passenger side Air Bag Q31 (from pins 9 and 10 of connector B);
- to the driver's Window Bag Q40 (from pins 7 and 8 of connector B);
- to the passenger Window Bag Q41 (from pins 11 and 12 of connector B).