Description
The side curtain airbag or passenger head airbag module is installed under the headlining.
The module includes:
- an inflatable chamber in the form of a curtain;
- pyrotechnic gas generator with igniter (located at the back of the unit).
This node is non-separable.
When deployed, the curtain airbag releases the clips of the ceiling upholstery.
Note. This system is activated when the ignition is switched on.
Removing the module
Attention! It is forbidden to carry out any work on pyrotechnic systems (seat belt pretensioners or airbags) near a heat source or an open flame, as there is a risk of their operation.
Before removing the airbag, be sure to lock the ECU with a scan tool. In this case, all ignition circuits are blocked, and the airbag warning lamp on the instrument panel lights up (with the ignition on).
Features on vehicles with body type «hatchback»
To access the gas generator 1, the rear upholstery must be removed.
To remove the air curtain unit 2 and its chamber, the roof lining must be removed.
Features on vehicles with body type «station wagon»
To access the gas generator 1 and replace the air curtain unit 2, the roof lining must be removed.
Disconnect the connector and free the wires of the airbag module, including the wire connecting to «weight».
Note. If the system has never activated and needs to be reinstalled after removal, do not deploy the airbag, as its airbag is folded in a special way.
Remove the airbag assembly.
Attention! When the seat belt pretensioners or airbags are deployed, the computer is completely blocked and the airbag warning lamp on the instrument panel lights up. In this case, the side impact sensor and the ECU must be replaced (under the influence of ignition energy, some components lose their nominal characteristics).
Module installation
Attention! When the side curtain airbag deploys due to deformation and damage to the fastening elements, the fastening clips must be replaced.
Reinstall the curtain airbag module without tightening the mounting screws.
When installing the curtain airbag, install holder 1 first.
Install all clamps.
Tighten the mounting bolts 2 to the required torque (tightening torque 8 Nm).
Connect the connection wire with «weight» (E) (depending on configuration).
Reconnect the connector, paying attention to the correct fixation.
Carry out a check with the diagnostic tool. If all characteristics are within the normal range, unlock the computer.
Attention! The slightest deviation from these rules can lead to the failure of pyrotechnic systems or even to their spontaneous operation.