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Work step 1: Check DTC Memory
Test requirement:
Engine not running, ignition switched on.
- Connect VAS5051 tester Page 01
-7 and
select vehicle system "01 - Engine electronics".
Ignition must remain switched on for this.
Display on VAS5051:
- In selection -1-, click on the diagnostic function "02 - Check DTC
memory".
Display on VAS5051:
1 - DTC memory content:
0 malfunctions recognized
or
X malfunctions recognized
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Work step 2: Erase DTC Memory
Test requirement:
Engine not running, ignition switched on.
Display on VAS5051:
Note:
When DTC memory is erased, readiness code is reset and must therefore
be re-generated. - In selection -1-, click on the diagnostic function "05 - Check DTC
memory".
Display on VAS5051:
1 - no indication (before erasing)
or
DTC memory erased
2 - Note:Perform the function?Note: Data is being erased !
- Press on "OK" button in display -2-.
-
Click on - button
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Work step 3: Adapt throttle valve control
module to Engine Control Module (ECM)
Test requirement:
Engine not running, ignition switched on.
Display on VAS5051:
- In selection -1-, click on the diagnostic function "04 - Basic setting".
Display on VAS5051:
1 - Enter display group Max. input value = 255
- Select function "060" in button field -2- for "display group number 060"
and press Q button to confirm input.
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Display on VAS5051:
- Check specified values in display fields -3- and -4-.
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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
-12
.
If specified value is not
obtained: Note, Page 24
-
130
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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Work step 4: Kick down function, adapting
1)
1) Only vehicles with automatic transmission
Test requirement:
Engine not running, ignition switched on.
Display on VAS5051:
Note:
There will be a prompt: "Operate kick down".
Note:
During adaptation of the kick down point, "Kick down ADP in progress" will
be indicated in display. After successful adaptation of the kick down point,
"Kick down ADP OK" will be indicated on display. -
Press button 3 times to change into display group 063.- Depress accelerator pedal completely, past kick down point, and hold
down.
- Check specified value in display field -4-.
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Display fields
1 2 3 4
Display group 063: Kick down function, adapting
Display xx % xx %
Kick
down ---
Indicated Sensor 1
for
Pedal
position learned kick down value for Throttle
Position (TP) sensor Kick
down Adaptation condition
Functional
range
Kick
down operate
ADP in progress
ADP OK
ERROR
Specified
value 79 to 94 % 79 to 94 %
Kick
down ADP OK
Note
If "ERROR." is displayed: Check DTC
memory Page 01
-12
.
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.
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Work step 5: Check operating condition of
oxygen sensor control
- Start engine (for a vehicle with manual
transmission: engage clutch).
Note:
If necessary, vehicle system "01 - engine
electronics" and diagnostic function "04 -basic
setting" must be selected again after engine
start.
- Install VAG1788/10 RPM adjuster on the
accelerator pedal and raise the engine speed to
2600 RPM.
Test requirement:
Engine running at 2600 RPM.
Display on VAS5051:
-
Click on - button
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