AUDI A8 1998 D2 / 1.G 01V Transmission Output DTM Workshop Manual

01-163


Output Diagnostic Test Mode
(DTM) (scan tool function 03)

Note:
There are two different transmissions:

Transmission with hydraulic controls -E17-, on
which the transmission input speed sensor
(inductive sensor) is secured to the underside
of the valve body.
Transmission with hydraulic regulation -E18/2-,
on which the transmission input speed sensor
(camshaft position sensor) is secured behind
the valve body at the transmission housing.
For information on which transmission is
installed, refer to tables from the following Repair
Manual:

Repair Manual, 5 Spd. Automatic
Transmission 01V, Repair Group 00


Output Diagnostic Test Mode (DTM) for
transmission with hydraulic regulation -E17-
page 01
-164


Output Diagnostic Test Mode (DTM) for
transmission with hydraulic regulation -
Pa
ge 1 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10

E18/2- page 01
-171

Pa
ge 2 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10

01-164

Output Diagnostic Test Mode (DTM)
(scan tool function 03), transmissions
with hydraulic regulation -E17-


Note:

The Output Diagnostic Test Mode (DTM) can
only be performed when the ignition is switched
off, the selector lever is in position "P", the
engine is not running, and the vehicle is
stationary.
DTM will be terminated when the engine is
started.
The function of solenoid valves 1 -N88-, 2 -N89-
, 3 -N90- and the solenoids for the selector
lever lock are checked acoustically during the
DTM. Avoid noise in the surrounding area
during the acoustic check, because the
switching noise (clicking) of the actuators is
very quiet.
The solenoid valves 4 -N91-, 5 -N92-, 6 -N93-
and 7 -N94- are activated during the DTM. A
direct functional check of these valves is not
possible. But possible electrical faults which
occur during the activation, will be recognized
by the On Board Diagnostic (OBD) and stored
in the DTC memory.
Pa
ge 3 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10

01-165

When performing the Output Diagnostic Test
Mode (DTM), the individual actuators will be
activated until the button is pressed.

Only one complete DTM is possible after
switching the ignition on. To repeat DTM, the
ignition must be switched off and on again.


Activation sequence
1. Solenoid Valve 1 -N88-
2. Solenoid Valve 2 -N89-
3. Solenoid Valve 3 -N90-
4. Shift Lock solenoid -N110-
5. Solenoid Valve 4 -N91-
6. Solenoid Valve 5 -N92-
7. Solenoid Valve 6 -N93-
8. Solenoid Valve 7 -N94-
9. Kick-down Switch -F8-
(Kick-down for air conditioner)
10. Solenoid Valve Relay
Pa
ge 4 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10

01-166

Test sequence

- Connect VAS 5051 tester or V.A.G 1551 scan
tool and enter address word 02 for "Control
module for Transmission electronics" page
01
-40
.

Ignition must be switched off during this
process. Rapid data transfer
HELP
Select function XX

Indicated on display:
- Press keys 0 and 3. (03 selects the function "Output Diagnostic Test
Mode").
Rapid data transfer
Q
03 - Output Dia
gnostic Test Mode

Indicated on display
- Press Q- button to confirm entry.
Output Diagnostic Test Mode
-
Solenoid valve 1 -N88

Indicated on display
-
Valve is activated (clicks). To switch to next actuator press key.- If valve does not click, perform electrical check Page 01
-273
.
Malfunction is stored in DTC memory, see DTC table Page 01
-45
.
Pa
ge 5 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10

01-167

Output Diagnostic Test Mode
-
Solenoid valve 2 -N89

Indicated on display
-
Valve is activated (clicks) To switch to next actuator press key.- If valve does not click, perform electrical check Page 01
-273
.
Output Diagnostic Test Mode
-
Solenoid valve 3 -N90

Indicated on display
Malfunction is stored in DTC memory, DTC table Page 01
-45
. -
Valve is activated (clicks). To switch to next actuator press key.
- If valve does not click, perform electrical check Page 01
-273
.
Output Diagnostic Test Mode
-
Selector lever lock solenoid -N110

Indicated on display
-
Solenoid is activated (clicks). Switch to next actuator press key.- If solenoid does not click, perform electrical check Page 01
-273
.
Malfunction is stored in DTC memory, DTC table Page 01
-45
.
Pa
ge 6 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10

01-168

Output Diagnostic Test Mode
-
Solenoid valve 4 -N91

Indicated on display
Electrical malfunctions will be stored in DTC memory. See DTC table
Page 01
-45
. -
Valve is activated (clicks). To switch to next actuator press key.
Output Diagnostic Test Mode
-
Solenoid valve 5 -N92

Indicated on display
Electrical malfunctions will be stored in DTC memory. See DTC table
Page 01
-45
. -
Valve is activated (clicks). To switch to next actuator press key.
Output Diagnostic Test Mode
-
Solenoid valve 6 -N93

Indicated on display
Electrical malfunctions will be stored in DTC memory. See DTC table
Page 01
-45
. -
Valve is activated (clicks). Switch to the next actuator press key.
Pa
ge 7 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10

01-169

Output Diagnostic Test Mode
-
Solenoid valve 7 -N94

Indicated on display
Electrical malfunctions will be stored in DTC memory. See DTC table
Page 01
-45
. -
Valve is activated (clicks). To switch to next actuator press key.
Output Diagnostic Test Mode
-
Kick-down switch -F8

Indicated on display
Notes:

It is not the kick-down switch -F8-, but the switch-off function for the air
conditioner in transmission control module -J217- which is activated. If the kick-down switch is operated, the Transmission Control Module
(TCM) grounds the output to air conditioner. This briefly switches off
the air conditioner compressor. Can be disregarded here. The signal can be checked in measured value block 011 01
-186
.
For checking function of Kick-down switch -F8- Page 01
-273

Electrical check.
-
Press key to switch to the next actuator.
Pa
ge 8 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10

01-170

Output Diagnostic Test Mode
-
Solenoid valve relays

Indicated on display
-
Solenoid valves activated in position "P" are activated (click), press
key to switch to the next actuator.
Can be disregarded.
-
Press key.
Output Diagnostic Test Mode
-
End

Indicated on display
-
Press key
Function is unknown or cannot be performed at this time

Indicated on display
-
Pressing the key will terminate the Output Diagnostic Test Mode.
Rapid data transfer
HELP
Select function XX

Indicated on display:
- To repeat Output Diagnostic Test Mode, the ignition must be switched
off and then on again. Now select function 03 - Output Diagnostic Test
Mode again.
Pa
ge 9 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10

01-171

Output Diagnostic Test Mode (DTM)
(scan tool function 03), transmissions
with hydraulic regulation -E18/2-


Note:

The Output Diagnostic Test Mode (DTM) can
only be performed when the ignition is switched
off, the selector lever is in position "P", the
engine is not running, and the vehicle is
stationary.
DTM will be terminated if the engine is
started.
The function of solenoid valves 1 -N88-, 2 -N89-
, 3 -N90- and the solenoids for the shift lock are
checked acoustically during DTM. Avoid noise
in the surrounding area during the acoustic
check, because the switching noise (clicking) of
the final controls is very quiet.
The pressure control valves 1 -N215-, 2 -N216-,
3 -N217- and 4 -N218- are activated during
DTM. A direct functional check of these valves
is not possible. But possible electrical faults
which occur during the activation will be
recognized and stored in DTC memory.
Pa
ge 10 of 18 Out
put Dia
gnostic Test Mode
(DTM
) (scan tool function 03
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.10