AUDI A4 2000 B5 / 1.G Brakes Basic Setting 04 User Guide

01-252

- Connect VAS5051 tester or VAG1551 scan tool
and select the address word 03 "Brake
Electronics" page 01
-4
Rapid data transfer
HELP
Select function XX

Indicated on display:
- Press buttons -0- and -4- to select function 04 "Basic Setting"
Rapid data transfer
Q
04 - Basic Settin
g

Indicated on display:
- Press -Q- button to confirm input.
Basic Setting
Q
Enter displa
y group number XXX

Indicated on display:
- Press buttons -0-, -0-, and -3-. Press -Q- button to confirm input.
System in basic setting
3
System test activated
OK

Indicated on display:
The ESP driving test is activated.
The ABS warning light -K47- and the traction control indicator light -
K86- go on.
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- Press buttons -0- and -6- to select "End Output"
function 06. Press -Q- button to confirm input. Rapid data transfer
HELP
Select function XX

Indicated on display:
Note:
This completes the adjustment with the engine not running
WARNING!
Always follow the rules of the road and pay attention to traffic
conditions as your first priority. - Disconnect VAG 1551 scan tool.
- Start engine.
- Press the brake pedal hard (brake pressure higher than 35 bar) until
the traction control indicator light -K86- turns off.
- Perform the following road test:
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Make a right or left turn. Then reverse the
direction and continue driving until the
ABS/EDL lamp turns off.

Note:
While driving around the curves, a yaw rate of
around 10 /sec must be obtained. A curve with
a radius of 10 to 12 m and a speed of 15 to 20
km/h for around 4 sec. fulfills this requirement.

The ABS warning light -K47- must go out. This
completes the ESP driving test and the system
is OK.

If the ABS/ESP warning light -K47- remains lit,
the test is not OK (system locked). Check DTC
memory.
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If the ABS warning light -K47- does not go out,
the ESP driving test was not performed properly.

If the ABS warning light -K47- does not go out,
and the traction control indicator light -K86-
lights up again, there are malfunctions in the
system; Check DTC memory page 01
-356


Note:
If the ESP driving test was interrupted, e.g.: by
switching off the ignition, the entire test must be
repeated.
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Read Measuring Value Block (function
08)

The control module can transmit measured
values to the VAS5051 tester and VAG1551
Scan Tool (ST). These measured values provide
information about the operational status of the
system and the sensors connected to it. In many
cases the data supplied can be used to
troubleshoot and repair malfunctions. The
measured values provided by ESP are contained
in six display groups, which can be accessed via
their display group numbers.

- Connect the VAS5051 tester or VAG1551 Scan
Tool (ST) and select the address word 03 "Brake
Electronics".
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Notes:

When the printer is switched on, the contents of
the display will be printed out on the scan tool
log.
When reading the measuring value block, also
check wiring and connectors for loose
terminals.

- Check the control module version page 01
-
231
and press the button.
Rapid data transfer
HELP
Select function XX

Indicated on display:
- Press buttons -0- and -8- to select "Read measuring value block"
function 08.
Rapid data transfer
Q
08 - Read measuring value block

Indicated on display:
- Press -Q- button to confirm input.
Read measurin
g value block
HELP
Input displa
y group number
XXX

Indicated on display:
- Press buttons -0-, -0- and -1-.
- Press -Q- button to confirm input.
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01-258
Test table: display group 1
Notes:

Display fields 1 through 4 show the current wheel circumference speeds in km/h. These are calculated by the ABS control
module -J104- on the basis of the signals received from the wheel speed sensors. If one of the display fields shows no
reading, proceed as for DTCs 00283, 00285, 00287, 00290 "ABS Wheel Speed Sensor" DTC table page 01
-357
.
In order to check whether wheel speed sensors are properly allocated to each wheel, the vehicle must be raised. On
vehicles with manual transmission put the gear shift lever in neutral. On vehicles with automatic transmission move the
selector lever to position "N". Turn appropriate wheel by hand. Remaining drive wheels must be secured against turning.
When a vehicle is accelerated uniformly on a dry surface, the displayed value will increase continuously by whole
numbers; e.g. 6 km/h, 7 km/h, 8 km/h ... . The difference between displayed values 1-4 should not be more than 1 km/h
(error from out-of-round wheels). If the values jump, for instance from ...6km/h, 7 km/h, to 12 km/h...or if the difference
between the displayed values is greater than 1 km/h, then check the installation of the wheel speed sensors and rotors. Repair Manual, Brake System, Repair Group 45

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Test table: display group 1 Read measuring value block
1
Indicated on display
1 to 19
1)
km/h 1 to 19
1)
km/h
1 to 19
1)
km/h 1 to 19
1)
km/h


Rear right wheel circumference speed

Rear left wheel circumference speed

Front right wheel circumference speed
Front left wheel circumference speed 1) OBD is terminated by ABS control module -J104- if road speed exceeds 19 km/h (12 mph). 1 km/h is the minimum speed
that can be displayed (at 0 km/h, for example, the tester displays 1 km/h).
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Note:
The display group numbers can be selected in
sequence by pressing buttons <-1 and 3-> on the
VAG1551 scan tool, or the arrow buttons and
on the VAG1552 mobile scan tool or the arrow
buttons and on the screen of the VAS5051
tester.
- Press -C- button to input display group number
manually. Read measurin
g value block
Enter display group number XXX

Indicated on display:
- Press buttons -0-, -0- and -2-.
- Press -Q- button to confirm input.
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Test table: display group 2 Read measuring value block
2
Indicated on display

0 or
operated 0 or
operated
0 or
operated 0 or
operated


Traction control button
0 Traction control button not operated Traction control switch operated
- Check traction control button if there are deviations. Carry out "Electrical test", step 20.

Parking brake

0 Parking brake not engaged Parking brake engaged
- Check parking brake warning light switch -F9- if
there are deviations. Carry out "Electrical test", step
27.

Brake light switch:
0 Brake pedal not depressedBrake pedal depressed- Check brake light switch if there are deviations. DTC table page
01
-356
; DTC "Brake light switch -F-"; DTC 00526.
Brake test switch:

0 Brake pedal not
depressed Brake pedal depressed
- The brake test signal precedes the brake light signal. Check brake light switch if there
are deviations:DTC table page 01
-356
; DTC "Brake light switch -F-"; DTC 00526.
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