ECO mode AUDI A4 1999 B5 / 1.G Airbag Service OBD Workshop Manual

01-6

1999 vehicles : from VIN 8D XA 200 001 Airbag system includes: side airbag, passenger-
side airbag, two front seat belt tensioners, two
front side airbags, two or three rear seat belt
tensioners and side curtain airbags. In a crash
situation, these are ignited centrally by the airbag
control module -J234- when specified triggering
criteria are met.
In a crash situation, the control module sends a
crash signal to the central locking control
module. This function is a passive safety feature.
It releases door locks and the rear lid lock via the
central locking system if an airbag and/or belt
tensioner is triggered. Also, inside door lock
switches are blocked and interior lighting is
switched on. The "crash signal" can be checked
using output Diagnostic Test Mode (DTM)
page 01
-44
.
When the airbags and/or belt tensioners are
deployed, the control module will record the DTC
"Crash data stored."
Airbag control module -J234- must be replaced
following:

The 1st driver-side/passenger-side airbag
deployment.
The 3rd time front seat belt tensioners and/or
Pa
ge 3 of 74 Airba
g system
(with and without side airba
g)
On Board Dia
gnostic
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.2