light AUDI A4 1998 B5 / 1.G Airbag Service OBD User Guide

01-47

Output Diagnostic Test Mode Signal: Open central lockin
g system

Indicated on display
Central locking must switch to "open."
Emergency flashers and interior lights switch on.
Notes: - Operate interior switch. Central locking must not switch to "closed" as
long as DTC is still stored in central locking control module.
After this procedure step, DTC 01366 is stored in the DTC memory of
the central locking control module. After completion of output Diagnostic Test Mode (DTM), the DTC
memory of the central locking control module must be checked and
this DTC must be erased page 01
-74
.
Output Diagnostic Test Mode END

Indicated on display
-
Press button.
Rapid data transfer
HELP
Select function XX

Indicated on display
Pa
ge 63 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

01-48

Vehicles from calendar week (KW) 18.99 on
Output Diagnostic Test Mode (DTM) is used to
check the operation of the crash response
system. When airbags are triggered, the central
locking system switches immediately to "open"
and the inside door lock switches are blocked.
Emergency flashers and interior lights are
switched on and the fuel supply is interrupted.

Notes:

Before initiating output Diagnostic Test Mode
(DTM), set the central locking system to
"closed" by operating the interior switch and
start the engine.
Set interior light switch to "door contact"
position.
After output DTM is initiated, central locking
cannot be operated until the DTC memory of
the central locking control module is erased.

Carrying out "Output Diagnostic Test
Mode" (function 03)
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -3- to select "Output Diagnostic Test Mode"
function 03.
Pa
ge 64 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

01-49

Output Diagnostic Test Mode Signal: Open central lockin
g system

Indicated on display
Engine must stop running
Central locking must switch to "open."
Emergency flashers and interior lights switch on.
Notes: - Operate interior switch. Central locking must not switch to "closed" as
long as DTC is still stored in central locking control module.
After this procedure step, DTC 01366 is stored in the DTC memory of
the central locking control module. After completion of output Diagnostic Test Mode (DTM), the DTC
memory of the central locking control module must be checked and
this DTC must be erased page 01
-74
.
Several DTCs will be stored in the DTC memory of the Engine Control
Module (ECM) after this procedure. After completing output Diagnostic Test Mode (DTM), the DTC
memory of the Engine Control Module (ECM) must be checked and
erased. This procedure varies depending on the fuel injection and
ignition system installed in the vehicle. Refer to Repair Group 01 of
the appropriate repair manual DTC memory, checking and erasing. Depending on engine type, fuel shut-off is a running-change as of KW
18.99.
Pa
ge 66 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

01-51

Code Control Module (scan tool function
07)


Notes:
Control modules are supplied uncoded.
An uncoded control module will cause the
airbag Malfunction Indicator Lamp (MIL) -K75-
to light up continuously.
The coding procedure is carried out using the
VAG1551 Scan Tool (ST).
If no coding appears on the VAG1551 Scan Tool
(ST), or if a new control module has been
installed, carry out the coding procedure as
follows:
Pa
ge 68 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