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X
X
X
X
X
X
X
X
Notes for display group 086, display field 1
Diagnostic of catalytic converter
Indication 0 = test was performed
Indication 1 = test was not performed (generate readiness code Page 01
-84
)
Indication always 0
EVAP system
Indication 0 = test was performed
Indication 1 = test was not performed (generate readiness code Page 01
-84
)
Secondary air system
Indication 0 = test was performed
Indication 1 = test was not performed (generate readiness code Page 01
-84
)
Indication always 0
Oxygen sensors
Indication 0 = test was performed
Indication 1 = test was not performed (generate readiness code Page 01
-84
)
Oxygen sensor heating
Indication 0 = test was performed
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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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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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Display on VAS5051:
1 - Enter display group Max. input value = 255
- Select function "030" in button field -2- for "display group number 030"
and press Q button to confirm input.
Display on VAS5051:
Note:
A few minutes may pass until a diagnostic result is reached. - Check oxygen sensor status in display fields -1- and -2-.
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Display fields
1 2 3 4
Display group 030: Oxygen sensor status
Display
X X X
X X X
Indicated
Oxygen sensor status, bank 1, sensor 1
Oxygen sensor status, bank 2, sensor 1
Functional range
0 = off
1 = on 0 = off
1 = on
Specified value
1 1 1
1 1 0
Significance of 3 digit indications in display group 030 X
X
X
Display fields 1 and 2
X Oxygen sensor control: 0= not active; 1 = active
X Operational readiness of oxygen sensor: 0= not active; 1 = active
X Condition of oxygen sensor heater: 0= not active; 1 = active
Notes:
The first position of the 3 digit indication (heating) fluctuates between 0 and 1 at certain operation points.
Oxygen sensor control of oxygen sensor behind catalytic converter (bank 1, sensor 2) is not active without engine load,
meaning that the third position of the 3-digit display is 0.
-
Do not start test until indication in display field 1
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Work step 6: Diagnostic of oxygen sensor
aging before catalytic converter
Test requirement:
Engine continues to run at 2600 RPM.
Display on VAS5051:
Note:
A few minutes may pass until a diagnostic result is reached. -
Press button 4 times to change into display group 034.- Check specified value in display field -4-.
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Display fields
1 2 3 4
Display group 034: Oxygen sensor aging diagnostic, oxygen sensor before catalytic converter (bank 1)
Display xxxx/min
xxx C
x.x
---
Indicated Engine speed
(RPM) Exhaust
temperature Dynamic
factor Diagnostic condition
Functional
range Test OFF
Test ON
B1-S2 OK
B1-S2 not OK
Specified
value 2600 RPM larger than 350
C
0.5 to 2.5 B1-S2 OK
Note
If "B1-S1 not OK" is displayed: Check DTC
memory Page 01
-12
.
If specified value "B1-S1 OK" is obtained:
- Perform next work step.
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