AUDI A4 1999 B5 / 1.G AFC Engine On Board Diagnostic Multiport Fuel Injection Workshop Manual

01-154

- Select the desired display group number
according to the following display group
overview and press -Q- button to confirm input.

Note:
Display group 001 is used as an example to
show the sequence.

- Press buttons -0-, -0- and -1- to input display
group no. 001. Initiate basic settin
g
Q
Input display group number
01

Indicated on display
- Press -Q- button to confirm input.
Basic setting 1 1 2 3 4

Indicated on display
To change to a different display group, proceed as follows: Display group
VAG 1551 scan tool
VAG 1552 scan tool
Higher Press button -3-
Press button Lower Press button -1-
Press button Skip Press -C- button Press -C- button
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01-155

Notes:

The values in display fields 1 to 10 are shown in
decimal format in display group 000.
In the "Basic Setting" display, the current 3-digit
display group number is shown without the first
zero. In display groups 000 to 009, the number
is shown without the first two zeroes.
If the printer is switched on, the current display
will be printed out on the paper strip.
Each time the PRINT button is pressed, the
current display will be printed out.
If the specified values are obtained in all display
fields:

-
Press button.
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -6- to select "End Output" function 06.
Rapid data transfer
Q
06 - End Output

Indicated on display
- Press -Q- button to confirm input.
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Rapid data transfer
HELP
Insert address word XX

Indicated on display
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01-156
Display group overview with test table

Note:
Display groups 000 to 010 are used for general troubleshooting.
Display group
Display shows
Designation
000 Basic setting 0
1 2 3 4 5 6 7 8 9 10 Key to displays page 01
-163

001 Basic setting 1
1 2 3 4 1 = Engine coolant temperature
2 = Mass Air Flow (MAF) sensor output voltage
3 = Altitude display (only on vehicles with secondary air system )
4 = Engine Control Module (ECM) voltage supply
002 Basic setting 2
1 2 3 4 1 = Throttle Position (TP) sensor voltage (coarse)
2 = Throttle Position (TP) sensor voltage (fine)
3 = Throttle Position (TP) sensor learning value
4 = Closed Throttle Position (CTP) switch
003 Basic setting 3
1 2 3 4 1 = Engine speed (RPM)
2 = Engine load
3 = Throttle angle
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4 = Vehicle speed
004 Basic setting 4
1 2 3 4 1 = Idle Air Control (IAC) valve
2 = Idle Speed Control (ISC) learning value
3 = Idle Speed Control (ISC) learning value
4 = Additional signals
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01-157

Display
group Display
shows Designation
005 Basic setting 5
1 2 3 4 1 = Oxygen sensor-learning value at idle (bank 1)
2 = Oxygen sensor-learning value at partial throttle 1 (bank 1)
3 = Oxygen sensor-learning value at partial throttle 2 (bank 1)
4 = Oxygen sensor-learning value at partial throttle 3 (bank 1)
006 Basic setting 6
1 2 3 4 1 = Oxygen sensor-learning value at idle (bank 2)
2 = Oxygen sensor-learning value at partial throttle 1 (bank 2)
3 = Oxygen sensor-learning value at partial throttle 2 (bank 2)
4 = Oxygen sensor-learning value at partial throttle 3 (bank 2)
007 Basic setting 7
1 2 3 4 1 = Oxygen sensor control (bank 1)
2 = Learning range display
3 = Oxygen sensor-learning requirement diagnosis
4 = Oxygen sensor-learning requirement display
008 Basic setting 8
1 2 3 4 1 = Oxygen sensor control (bank 2)
2 = Learning range-display
3 = Oxygen sensor learning requirement-diagnose
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4 = Oxygen sensor learning requirement display
009 Basic setting 9
1 2 3 4 1 = Oxygen sensor control (bank 1)
2 = Oxygen sensor control (bank 2)
3 = EVAP canister purge regulator valve duty cycle
4 = Throttle angle
010 Basic setting
10
1 2 3 4 1 = Total of oxygen sensor control (bank 1) and momentary oxygen sensor learning value
(bank 1)
2 = Total of oxygen sensor control (bank 2) and momentary oxygen sensor learning value
(bank 2)
3 = Voltage signal, bank 1 heated oxygen sensor 1
4 = Voltage signal, bank 2 heated oxygen sensor 1
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01-158
Note:
Display groups 11 to 45 are used for troubleshooting when there are driving performance problems, and used to evaluate
components and systems that influence the exhaust. Display group
Display shows
Designation
011 Basic setting 11
1 2 3 4 1 = Ignition timing point w/o knock control, w/o idle speed control
2 = Ignition timing point with knock control and idle speed control
3 = Ignition timing point access to idle speed control
4 = Closed Throttle Position (CTP) switch function
012 Basic setting 12
1 2 3 4 1 = Engine speed
2 = Engine load
3 = Ignition timing point map switching
4 = Ignition timing point retarded by knock control
013 Basic setting 13
1 2 3 4 1 = Ignition timing point map switching
2 = Ignition timing point retarded by knock control (cylinder 1)
3 = Ignition timing point retarded by knock control (cylinder 2)
4 = Ignition timing point retarded by knock control (cylinder 3)
014 Basic setting 14 1 = Ignition timing point map switching
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1 2 3 4 2 = Ignition timing point retarded by knock control (cylinder 4)
3 = Ignition timing point retarded by knock control (cylinder 5)
4 = Ignition timing point retarded by knock control (cylinder 6)
015 Basic setting 15
1 2 3 4 1 = Engine speed (RPM)
2 = Knock sensor signal (cylinder 1)
3 = Knock sensor signal (cylinder 2)
4 = Knock sensor signal (cylinder 3)
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01-159

Display group
Display shows
Designation
016 Basic setting 16
1 2 3 4 1 = Engine speed (RPM)
2 = Knock sensor signal (cylinder 4)
3 = Knock sensor signal (cylinder 5)
4 = Knock sensor signal (cylinder 6)
017
(vehicles with
EGR) Basic setting 17
1 2 3 4 1 = Timer 1
2 = Timer 2
3 = Engine load
4 = Exhaust gas recirculation temperature
018 Basic setting 18
1 2 3 4 1 = Specified internal duty cycle of Idle Air Control (IAC) valve -N71-
2 = Current draw by Idle Air Control (IAC) valve -N71-
3 = Power control from Idle Air Control (IAC) valve -N71-
4 = Engine Control Module (ECM) voltage supply
019 Basic setting 19
1 2 3 4 1 = Engine power
2 = Intake air volume
3 = Vehicle speed
4 = Fuel injection time
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gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1