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.
Attention! Be sure to lock the ECU using a scan tool before removing the pretensioner. In this case, all ignition circuits are blocked, and the airbag warning lamp on the instrument panel lights up.
Removing
Detach the seat belt by pressing the latch 1.
Attention! When removing the seat, be careful not to disconnect the connector to avoid electrostatic discharge which could cause the airbag to deploy.
Bring the seat to the bottom (height) and mean (8 Longitudinal) position, then remove it with the Ele tool. 1584 (depending on configuration).
With the seat removed, remove:
- pretensioner connector located under the front seat;
- ground wire»;
- pretensioner assembly by first removing the protective cover.
Note. When the seat belt pretensioners or airbags are deployed, the computer will be completely locked out and the airbag warning light on the instrument panel will come on. In this case, the ECU must be replaced (under the influence of ignition energy, some components lose their nominal characteristics).
Peculiarities
The driver's seat belt buckle has a switch for the seat belt warning light on the instrument panel.
To release the connector from fixation, unscrew the screws securing both lock covers.
Installation
Pay attention to the laying and attachment points of the wires under the seat.
Before installing the seat, check the external condition of the connectors located in the base and seat frame.
After replacing the defective parts and connecting the connectors, check with the diagnostic tool.
If all characteristics are within the normal range, unlock the computer.