2000 AUDI A4 lock

01-188
Test table display group 009 Display fields
Display on VAG 1551 scan tool
Malfunction cause
Malfunction repair
1 -
- Display group 007, display field 1
2 -
- Display group 008, display field 13 -
- Note4 -
- Display group 003, display field 3
Notes on display field 3:

The evaporative emissions valve (EVAP canister valve) is closed during the learning process.
The effect of the EVAP canister can be evaluated by comparing the display value during "Basic setting" (EVAP canister
completely closed: 99%) and during "Read Measuring Value Block" (EVAP canister valve completely open: 0%).
You can switch back and forth between "Basic Setting" function 04 and "Read Measuring Value Block" function 08 by
pressing buttons -1- and -3- on VAG 1551 scan tool.
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Notes on display field 3:

Digital idle speed control (ISC) is only active with the Closed Throttle Position (CTP) switch closed.
Ignition timing point access to digital ISC with open CTP switch: 0.0 crankshaft. During "Basic Setting" function 04, digital ISC is blocked, display shows 0.0 crankshaft. Ignition timing point access to DLS during "Read Measuring Value Block" function 08 at idle without electrical consumers:
0.0 3.0 crankshaft.
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If there is engine damage (oil burning because of faulty piston)
If a knock sensor malfunction is recognized in DTC memory, ignition map switching is blocked.
Notes on display field 4:
Knock control is active starting at an engine load greater than 40% Display groups 013 and/or 014. The ignition timing point retarding values are only used when knock control is "active."
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01-199
Display group 017
Note:
If in display group 029, display field 1, the value of the EGR system throughput diagnosis is not set to "0" during the
regeneration of the "readiness code," and/or a malfunction relating to the exhaust system is stored in the DTC memory,
display group 017 is used to carry out a selective diagnosis.
During cold start at idle, -10 C to 30 C (14 to 86 F), and during "Basic Setting" function 04, no exhaust gas recirculation
takes place. Since exhaust gas recirculation is switched off automatically during "Basic Setting" function 04, diagnosis of EGR
throughput is evaluated only in "Read Measuring Value Block." function 08. If diagnostic conditions are fulfilled, the Engine Control Module (ECM) checks the flow through the EGR system after each
start. The diagnostic conditions are only reached during a trip at 80-100 km/h (50-63 mph) in 4th or 5 gear and/or with selector
lever in the "D"position, preferably in 4th gear position. If the diagnostic conditions are fulfilled, the diagnosis is active. In order
to get a diagnostic result, the vehicle must be driven approx. 1-1/2 to 5 minutes under the diagnostic conditions. However, the
diagnosis is only considered OK when the EGR temperature (display field 4) is greater than 50 C (122 F) during the reading
time (display field 2). Diagnosis of the EGR flow (exhaust gas recirculation quantity) is active as soon as the following diagnostic conditions are
fulfilled:

Coolant temperature: greater than 8 C (46 F) ( display group 001) Vehicle speed: constant drive
Engine speed: 2000-3000 RPM ( display group 003) Engine load: 30-60%
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01-216
Display group 030 (EVAP system diagnosis)
Notes:

Display group 030 is only considered on vehicles with sensor for EVAP canister -G172-.
If the value of the EVAP throughput diagnosis is not set to "0" in display group 029, display field 1 during regeneration of
the readiness code, and/or there is a malfunction in DTC memory that relates to the EVAP system, display group 030 is
used to carry out a selective diagnosis.
Since the EVAP system is automatically shut off during "Basic Setting" function 04, display group 030 can only be
evaluated using "Read Measuring Value Block" function 08.
When diagnostic conditions are fulfilled, the Engine Control Module (ECM) checks the EVAP system at each start with the
help of the sensor for EVAP canister -G172-. The pressure between the EVAP canister and EVAP canister purge
regulator valve is measured with the sensor for EVAP canister -G172-.
The diagnostic conditions are only fulfilled during a drive of approx. 1-1/2 to 5 minutes at 80-100 km/h (50-63 mph) with
manual transmission in 4th or 5th gear, or automatic transmission selector lever in "D" position, preferably in 4th gear. If
the diagnostic conditions are fulfilled, the diagnosis is active. To get the diagnosis results, you have to drive approx. 1-1/2
to 5 minutes under the diagnostic conditions, while the pressure has to be measured with closed EVAP canister purge
regulator valve. First, the pressure must be measured with the valve closed. You can get the valve to close most easily by
having a preceding deceleration fuel shut-off. If there are problems in shutting the EVAP canister purge regulator valve by
deceleration fuel shut-off, it can also be shut by running display group 030 in "Basic Setting" function 04. Then the
pressure has to be measured again in "Read Measuring Value Block" function 08 with valve fully open.
The diagnosis is recognized as OK if the EVAP system low pressure measured in display field 1 is greater than the actual
calculated EVAP system minimum low pressure in display field 2.
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01-238
Display group 044 (Diagnostic conditions for three way catalytic converter diagnosis, bank 1 and bank 2)
Notes:

When the diagnostic conditions are fulfilled (display fields 3 and 4) by using the heated oxygen sensors in front of and
behind the three way catalytic converter, at each start the Engine Control Module (ECM) carries out a diagnosis of the
three way catalytic converter. During this diagnosis, the deterioration rate of the three way catalytic converter is
determined. The deterioration rate of the three way catalytic converter is displayed when display groups 035 and 036 are
displayed. However, this diagnosis is "cross-blocked." That means that before the three way catalytic converter diagnosis
can be evaluated, a result of the heated oxygen sensor diagnosis must be available to the Engine Control Module (ECM).
If a malfunction is stored in DTC memory that affects the heated oxygen sensors in front of or behind the three way
catalytic converter, the heated oxygen sensor diagnosis can not be carried out and the three way catalytic converter
diagnosis can not be evaluated.
If in display group 029, display field 1 the value of the three way catalytic converter diagnosis is not set to "0" during
regeneration of the readiness code, and/or a malfunction is stored in DTC memory that affects the three way catalytic
converter, display group 044 can be used to selectively call the diagnostic conditions (display fields 3 and 4).
If in display group 029, display field 1 the value of the three way catalytic converter diagnosis and the value of the heated
oxygen sensor diagnosis are not set to "0" during regeneration of the readiness code, display group 044, display field 1
can be used to determine whether the three way catalytic converter diagnosis has been carried out inside the engine
control module, but the value of the three way catalytic converter diagnosis under display group 029, display field 1 can
not be set to "0" because the heated oxygen sensor diagnosis has not been carried out.
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01-244
Display group 099 Display
shows Display/specified
value Designation/diagnosis
Basic
setting 99
1 2 3 4 ... RPM 1 = Momentary engine speed Display group 003, display field 1 ...% 2 = Momentary engine load display group 003, display field 2
... C
3 = Coolant temperature display group 001, display field 1

-Control OFF
and/or
-Control ON
4 = Oxygen sensor control OFF in "Basic Setting" function 04; Oxygen sensor control
ON in "Read Measuring Value Block" function 08
Notes on display field 4:

For defined troubleshooting, the oxygen sensor control is switched off when display group 099 is selected under "Basic
Setting" function 04, and switched on when display group 099 is selected under "Read Measuring Value Block"function
08. When leaving "Basic Setting" function 04, oxygen sensor control is automatically active again.
You can switch back and forth between "Basic Setting" function 04 and "Read Measuring Value Block" function 08 by
pressing buttons -4- and -8- on the VAG 1551 scan tool.
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01-249

Read Measuring Value Block (scan tool
function 08)


Notes:

Display groups 000-045 and 099 are identical to
the display groups 000-045 and 099 described
with "Basic Setting" function 04.
After "Basic Setting" function 04 is called up,
the ECM initiates the operations described
below. These operations are not carried out
after calling up "Read Measuring Value Block"
function 08.
Operations after calling up "Basic Setting"
function 04:
Constant ignition timing point of 12 BTDC will
be output in idle

Digital idle speed control is blocked
Evaporative Emissions (EVAP) canister purge
regulator valve is closed
A/C compressor is shut off

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