Components

The Airbag control unit M60 is powered through the ignition switch(INT) on pin 15 from the line protected by fuse F23 of junction unit B1.

Pin 14 is connected to airbag system earth C50, and so is pin 23, that indicates that the system is the "complete" version that includes the passenger's airbag.

When, based on the control logic, a crash of a certain severity is detected, the control unit sends the signals to activate the modules:

• to the driver's airbag Q9, through the clock spring on steering wheelQ10 (from pins 1 and 2):
• to airbag on passenger's side Q11 (from pins 3 and 4);

Pins 5 and 24 connect with the passenger airbag disable switch H75.

When the system diagnostics find a fault or a crash has been recorded, control unit M60 sends a signal from pin 13 for the " Air Bag fault" warning light , located in cluster E50. This earth signal switches on the warning light spia, since cluster 0 is supplied from the ignition switch (INT) by the line protected by fuse F22 of junction unit B1. In the same way pin 20 of M60 sends the signal for the " passenger airbag disable " warning light.

The diagnostics data reading can be carried out connecting to airbag diagnostic socket R25: this receives the signals from pins 8 and 9 from control unit M60.

COMPONENTS