1997 AUDI A4 ATW Engine Readiness Code Workshop Manual

01-74

Work step 1: Check DTC Memory

Test requirement:

Engine not running, ignition switched on.

- Connect VAS5051 tester or VAG1551 scan tool
and select control module for engine electronics
using "address word" 01 Page 01
-10
.
Rapid data transfer
HELP
Select function XX

When indicated on display
- Press buttons -0- and -2- to select "Check DTC memory" and press -Q-
button to confirm input.
X malfunctions reco
gnized!

Number of stored DTCs or "No DTC recognized" will be indicated on
display.
If a DTC is stored:
If no DTCs are stored: - Repair malfunction, erase DTC memory. Road test vehicle and then
check DTC memory as a control measure.
-
Press button.
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01-75

Work step 2: Erase DTC Memory

Test requirement:

Engine not running, ignition switched on.
Rapid data transfer
HELP
Select function XX

When indicated on display
Note:
When DTC memory is erased, readiness code is reset and must therefore
be re-generated. - Press buttons -0- and -5- to select "Erase DTC memory" and press -Q-
button to confirm input.
Rapid data transfer DTC Memor
y is erased!

When indicated on display
-
Press button.
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01-76

Work step 3: Adapt throttle valve control
module to Engine Control Module (ECM)

Test requirement:

Engine not running, ignition switched on.
Rapid data transfer
HELP
Select function XX

When indicated on display
- Press buttons -0- and -4- to select "Initiate basic setting" and press -Q-
button to confirm input.
Basic Setting
Q
Enter display group number XXX

When indicated on display
- Press buttons -0-, -6- and -0- to select "display group number 060" and
press -Q- button to confirm input.
System in basic setting 60
1
2
3
4

When indicated on display
- Check specified values in display fields 3 and 4
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01-77


Display fields

1 2 3 4
Display group 060: Adaptation of throttle valve control module
Display xx % xx %
x
---
Indicated Throttle
valve angle
(angle
sensor 1) Throttle
valve angle
(angle
sensor 2) Adaptation step counter
Adaptation condition
Functional
range
0 to 8
ADP in progress
ADP OK
ERROR
Specified
value 3 to 93 % 97 to 3 %
8
ADP OK
Note


After adaptation, the adaptation step
counter reaches the number 8 (it is OK for
numbers to be skipped). If "ERROR." is displayed:
Check DTC memory Page
01
-16
.
If specified value is not
obtained: Note, Page 24
-
126

Note for display field 3:
Different numbers are shown in display field 3 during adaptation that represent the current adaptation condition. It is not
particularly important how the adaptation step counter (display field 3) behaves during adaptation, but rather that display field
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4 indicates the specification "ADP OK" after adaptation.
If specified value "ADP OK" is obtained:

- Press -C- button.
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01-78

Work step 4: Kick down function, adapting
1)

1) Only vehicles with automatic transmission

Test requirement:

Engine not running, ignition switched on.
Basic Setting
Q
Enter displa
y group number XXX

When indicated on display
- Press buttons -0-, -6- and -3- to select "display group number 063" and
press -Q- button to confirm input.
System in basic setting 63
1
2
3
4

When indicated on display
Note:
There will be a prompt: "Operate kickdown".
Note:
During adaptation of the kick down point, the VAG1551 will display "Kick
down ADP in progress". After successful adaptation of the kick down
point, the VAG1551 will display "Kick down ADP OK". - Depress accelerator pedal completely, past kick down point, and hold
down.
- Check specified value in display field 4:
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01-79


Display fields

1 2 3 4
Display group 063: Kick down function, adapting
Display xx % xx %
Kick
down ---
Indicated Sensor 1 for
Pedal
position Sensor 2 for
Pedal
position Kick
down Adaptation condition
Functional
range
Kick
down operate
ADP in progress
ADP OK
ERROR
Specified value 12 to 97 % 4 to 49 %
Kick
down ADP OK
Note



If "ERROR." is displayed: Check DTC memory Page
01
-16
.
Note for display field 4:
"ERROR" can be indicated, for example, if the accelerator pedal is not immediately pressed in response to a request by the
tester or if the accelerator pedal is released while adaptation is running despite the fact that adaptation is not yet complete. In
both cases, "Basic Setting" must be exited and the adaptation must be performed again.
If specified value "ADP OK" is obtained:
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- Press -C- button.
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