Airbag DCU (Up To 2002 MY) (Restraint systems)

Airbag DCU (Up To 2002 MY)

The airbag DCU controls the operation of the system and also contains the collision detection sensors. The airbag DCU is attached to a bracket on the transmission tunnel, directly below the heater. On pre 2002 MY vehicles, a vehicle earth connects to one of the fixings. A multi-pin connector provides the airbag DCU connection with the vehicle harness.

Airbag DCU (From 2002 MY)

Incorporated into the airbag DCU is a mechanical safing sensor, an electronic single point sensor and integrated circuits for control and diagnostics. The mechanical safing sensor is a normally open switch that closes at the preset deceleration limit. The single point sensor is an accelerometer that produces an output proportional to the vehicle's deceleration.