1998 AUDI A4 buttons

01-97

Read Measuring Value Block


Test requirements

Coolant temperature at least 80 C

Electrical consumers switched off (radiator
fan must not run during the check)
A/C switched off

- Connect vehicle diagnostic, testing and
information system VAS 5051 or VAG1551 scan
tool and select engine electronics control
module by entering address word "01" Page 01
-9 . When doing this the engine must be
idling.
Rapid data transfer
HELP
Select function XX

Indicated on display:
- Press buttons -0- and -8- to select function "Read Measuring Value
Block" and confirm entry with -Q- button.
Read Measuring Value Block Input displa
y group number XXX

Indicated on display
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01-101

Readiness code, checking


Test sequence

- Connect vehicle diagnostic, testing and
information system VAS5051 or VAG1551 scan
tool to vehicle and select Control module for
engine electronics "Address Word" 01 Page
01
-9 . The ignition must be switched on.
Rapid data transfer
HELP
Select function XX

When indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block" and
press -Q- button to confirm input.
Read Measurin
g Value Block
Q
Input displa
y group number XXX

When indicated on display
- Press buttons "086" for "display group number 086" and press -Q-
button to confirm input.
Read Measuring Value Block 86
1
2
3
4

When indicated on display
- Check readiness code in display field 1

Specified value: 0 0 0 0 0 0 0 0
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01-106

Work step 1: Check DTC memory

- Connect Vehicle Diagnostic, Test and
Information system VAS5051 or VAG1551 scan
tool to vehicle and select control module for
engine electronics using "address word" 01
Page 01
-9 . The ignition is switched on.
Rapid data transfer
HELP
Select function XX

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

Number of stored DTCs or "No DTC recognized" will be indicated on
display.
If a DTC is stored:
If no DTC is stored: - Repair malfunction, erase DTC memory. Road test vehicle and then re-
check DTC memory as a control measure.
-
Press button.
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01-108

Work step 3: Adaptation Throttle Valve
Control Module to Engine Control Module
(ECM)

Test requirements

Ignition switched on.
Rapid data transfer
HELP
Select function XX

When indicated on display
- Press buttons "04" for the function "Basic Setting" and press Q button
to confirm input.
System in Basic Settin
g
Q
Input displa
y group number XXX

When indicated on display
- Input "060" for "display group number 60" and press Q button to
confirm input.
System in Basic Setting 60
1
2
3
4

When indicated on display
- Check readiness code in display field 3 and 4:
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01-112
If the specified value "EVAP OK" is reached:

- Press -C- button

Work step 5: Diagnosis of tank leak test

Note:
This diagnostic is locked the first 230 seconds
after engine is started.

Test requirements

Engine at idle
Coolant temperature greater 85 C (Display
group 4, display field 3)

Intake air temperature less 95 C (Display
group 4, display field 4)
System in Basic System
Q
Input displa
y group number XXX

When indicated on display
- Press buttons -0-, -7- and -1- to select display group number "071" and
press -Q- button to confirm input.
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01-115
If specified value in display field "System OK" is
reached:

- Press -C- button.

Work step 6: Diagnosis of fuel supply system

Test requirements

Engine at idle
Oxygen sensor control active
System in Basic S
ystem
Q
Input display group number XXX

When indicated on display
- Press buttons -1-, -0- and -7- to select display group number 107 and
confirm with -Q- button.
System in Basic Setting 107
1
2
3
4

When indicated on display
Note:
If display "Test ON" does not appear in the display field, switch the engine
off and restart afterward and repeat work step 6. (Diagnostic of fuel supply
system)
After the engine has been started it might be necessary to select "Address
word 01" and initiate the function "04 Basic Setting" again. - Check specified values in display field 4.
Pa
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01-117
If specified value in display "System OK" is
reached:

- Press -C- button.

Work step 7: Diagnosis of oxygen sensor
heater System in Basic Setting
Q
Input displa
y group number XXX

When indicated on display
- Press buttons -0-, -4- and -1- to select display group number 041 and
confirm with -Q- button.
System in Basic Setting 41
1
2
3
4

When indicated on display
Note:
Increasing engine speed accelerates the obtaining of specified values. - Check specified value in display field 1 and 3:
Pa
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- Press -C- button.

- Press buttons -0-, -4- and -2- to select "display
group number 042" and confirm input with -Q-
button.
Pa
ge 143 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
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yp
e=re
pair&id=AUDI.B5.FU04.01.1