Focus L4-2.0L SOHC VIN P (2000)
Air Bag Control Module: Description and Operation
The air bag control module governs the operation of the whole system, including the diagnostic element. It contains two frontal impact micro machine
sensors; a crash sensor and a safing sensor. These two sensors are connected in series and if they both sense a deceleration in excess of a predetermined
limit, the air bag control module will deploy the air bag module(s).
The air bag control module will also deploy the corresponding side air bag module dependent on the signal received from the crash sensor.
The air bag control module also performs continual system diagnostics. In the event of a fault being detected the warning indicator is illuminated either
constantly or intermittently. The behavior of the warning indicator depends on the type of fault present. The warning indicator is located in the
instrument cluster.
The wiring harness provides power to the air bag control module from the vehicle supply and hence to the air bag module(s), side impact crash sensors
(if equipped with side air bags) and tile warning indicator.
