torque AUDI A8 1998 D2 / 1.G 01V Transmission Read Measuring Value Block E18/2 Workshop Manual

21.0 C 0.747 A TC on 0
RPM
2

3
4 Specified current of Pressure Control Valve 4 for auto.
transmission -N218-
Torque converter lock-up clutch
Torque converter slip speed
Read measuring value block
8

0 % Deceleration
008 1
2
3
4 Kick down switch
Throttle valve value or accelerator pedal position
Deceleration mode/engine under load
Pa
ge 7 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14

01-232

Indicated on display (example)

Display fields:
1 2 3 4

Display group no.
Display field
Description
Read measuring value block 9

100 Nm 0 RPM 0 %
009 1
2
3

4 Engine torque (actual)
Engine speed (RPM)
Throttle valve value or accelerator pedal position

Read measuring value block 10

0.00 0 RPM 4 010 1
2
3
4 Torque increase in torque converter
Engine speed (RPM)
Gear selected

Read measuring value block 11

D M-switch up-switch 011 1
2
3
4 Selector lever position
Tiptronic recognition
Tiptronic Switch -F189-

Pa
ge 8 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14

01-252

Display
group
number Display
field Description
Test
requirements Spec. value on
V.A.G1551
display Corrective actions
007
1 ATF temperature See display group number 1, display field 4

2 Specified current of Pressure
Control Valve 4 for auto.
transmission -N218- While
driving
1) min. 0.0 A
- See DTC table, DTC
18237/P1829 and 18238 /
P1830 page 01
-45



max 2.0 A
- Perform electrical test
page 01
-273


3 Torque converter (TC) lock-
up clutch While
driving
1) TC open
- See DTC table, DTC
17125 / P0741 page 01
-
45

Continue
TC control
- Perform electrical test
page 01
-273



TC closed
1) While driving, a second mechanic is required to read specifications.
Pa
ge 30 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14

01-253

Display
group
number Display
field Description
Test requirements
Spec. value on
V.A.G1551
display Corrective actions
007
4 Torque
converter (TC)
slip speed While
driving
1) TC open 0......standstill
RPM
Repair Manual, 5 Spd.
Automatic Transmission 01V, Repair Group 37,
- Check ATF oil level
- See DTC table, DTC number
17105 / P0721 and 17125/P0741
page 01
-45



TC control
(last shift
process at
least 20
seconds ago) 20...120 RPM
Repair Manual, 5 Spd.
Automatic Transmission 01V, Repair Group 37,
- Determine which element is
faulty or not activated,
transmission with shift elements

TC closed 0...20 RPM
- Check plausibility between
engine RPM, transmission input
RPM and transmission RPM,
display group number 001
1) While driving, a second mechanic is required to read specifications.
Note:
Pa
ge 31 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14

Test requirements for torque converter slip speeds next page
Pa
ge 32 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14

01-254
Test requirements for torque converter slip speeds:

"TC closed": Shifting process must be complete (wait at least 1 sec.), the Torque Converter (TC) must be closed and the
accelerator pedal value must be constant.
"TC control": Indicated values are valid for the "regulating condition" of the throttle converter (control). Under inconvenient
conditions (e.g. accelerating on a hill), this condition is not reached until 20 seconds after the shifting process has been
completed. During this regulating phase, slip values of up to 350 RPM can be reached.
Excessive torque slip speeds can also indicate slipping clutches or non-activated shifting elements.
Pa
ge 33 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14

01-256

Display group
number Display
field Description
Test
requirements Spec. value on
V.A.G1551
display Corrective actions
009
1 Engine torque
2) While driving
1)
Nm
- See DTC table, DTC 18265 /
P1857 page 01
-45


Continue

2 Engine RPM With engine
running approx. 0...8200
RPM - See DTC table, DTC 17968 /
P1560 page 01
-45

1) While driving, a second mechanic is required to read specifications. 2) While driving in one gear, the indicated shift torque remains constantly high, since no engine torque reduction is required.
Note for display field 1:
The signal for actual engine torque is transmitted by the Engine Control Module (ECM) to the Transmission Control Module
(TCM) via the CAN-bus wiring.
Pa
ge 36 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14

01-257

Display
group
number Display
field Description
Test requirements
Spec. value
V.A.G1551
display Corrective actions
009
3 Throttle valve value or
value from accelerator
pedal position While
standing idle 0...1 % When accelerating from idle
to Wide Open Throttle (WOT),
%-value increases steadily.


Wide Open
Throttle
(WOT)
99...100 % - See DTC table, DTC
18269 / P1861 page 01
-
45

- See also display group
number 002, display field 2

4
2)
Transmission input
torque While
driving
1) Nm Should be like display field 1.
1) While driving, a second mechanic is required to read specifications. 2) This display field is not displayed until model year 2000 (May 1999)
Pa
ge 37 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14

01-258

Display
group
number Display
field Description
Test
requirements Spec. value on
V.A.G1551
display Corrective actions
010
1 Torque increase in
torque converter While driving
1)
0...3.2
Calculated by the Transmission
Control Module (TCM) from the
torque converter slip speed

2 Engine speed
(RPM) With engine
running approx. 0...8200
RPM - See DTC table, DTC 17968 /
P1560 page 01
-45


3 Gear selected See display group number 1, display field 4

4
2)
Vehicle acceleration
(actual) While
driving
1) Min. -10 m/s2
1) While driving, a second mechanic is required to read specifications. 2) This display field is not displayed until model year 2000 (May 1999)
Pa
ge 38 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14

01-261

Display
group
number Display
field Description
Test requirements
Spec. value on
V.A.G1551
display Corrective actions
013
1)
1 CAN-bus
normalizing torque While standing with
ignition switched on Nm
2 CAN-bus engine
code
0 ... 63
- See DTC table, DTC
18157/P1749 and 18249 /
P1841 page 01
-45

3 CAN-bus
Transmission
code
1
- Check coding of Engine
Control Module (ECM)
4 CAN-bus software
version code
0 ... 63
- See DTC table, DTC 18263 /
P1855 page 01
-45

1) This display group number is not displayed until model year 2000 (May 1999)
Notes for display group number 013;
Display field 2 and 4: When replacing the ECM, the same indication that appeared for the old control module should
appear after installation. If this is not the case, the wrong ECM was installed, or it is wrongly coded.
Pa
ge 41 of 42 Read Measurin
g Value Block
(scan tool function 08
) for transmissions with h
ydraulic control -E18/2-
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.14