Working On The Airbag System

WARNING: This page is about a different car, the 2017 Volkswagen Touareg and 2010 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

When working on the airbag system (pyrotechnic components, Airbag Control Module -J234-, wiring), the ground cable must be disconnected when the ignition is switched on.

Exceptions: on vehicles with a battery in the vehicle interior, the ignition must be switched off.

Then cover the negative terminal.
After disconnecting the battery, a wait time of 10 seconds is required.
The battery must be connected with the ignition switched on.
There must be no one inside the vehicle when connecting the battery.

If this is the case, make sure to stay out of the airbag deployment and belt tensioner zones.

If the ignition is not switched on after reconnecting the battery (the indicator lamps in the instrument cluster do not illuminate), the ignition (key/button) may only be switched on while sitting in the driver seat in the rearmost position.

NOTE:

For vehicles with a high-voltage battery, the voltage for the 12V vehicle electrical system must be checked after disconnecting the 12V battery. If there is voltage, the high-voltage system must be de-energized.