Performing zero compensation of brake pressure sender 1 G201 and brake pressure sender 2 G214 — AUDI

Performing zero compensation of
brake pressure sender 1
G201
and
brake pressure sender 2
G214
Zero compensation must be performed if the
ABS with EDL control unit
J104
,
brake pressure sender 1
G201
or
brake pressure sender 2
G214
were renewed, or if required by the fault tables.
Procedure
Brake pedal not depressed.
Connect
vehicle diagnostic, testing and information system
VAS 5051 A
Chapter
and select vehicle system
“03 - Brake electronics”
. When doing this the ignition must be switched on.
Indicated on
VAS 5051 A
:
From list
1
select diagnostic function
“11 - Login procedure”
or
“11 - Coding II”
.
Indicated on
VAS 5051 A
:
1
Enter code word
Use keypad
2
to enter code
“40168”
and confirm entry by touching
Q
key.
Note
If display on
VAS 5051 A
reads
“function unknown or function can not be performed at present”
the login procedure or coding II were not successful. Repeat login procedure or coding II.
Terminate function
“11 - Login procedure”
or
“11 - Coding II”
by touching
←
key.
Indicated on
VAS 5051 A
:
From list
1
, select function
“04 - Basic setting”
.
Indicated on
VAS 5051 A
:
1
Enter display group
Use keypad
2
to enter
“066”
for
“display group number 066”
and confirm by pressing the
Q
key.
The
ABS warning lamp
K47
flashes.
Indicated on
VAS 5051 A
:
A
Basic setting
B
Display group 66
1
Zero compensation OK
3
0.85 bar
4
2.12 bar
Zero compensation of
brake pressure sender 1
G201
and
brake pressure sender 2
G214
is now completed.
Note
The display does not return to 0.00 bar after performing zero compensation successfully.
Terminate function
“04 - Basic setting”
by pressing the
←
key.
Note
After you press function
“06 - End output”
, the
ABS warning lamp
K47
and the
traction control system warning lamp
K86
light up for approx. two seconds.
Possible fault messages:
Indicated on
VAS 5051 A
:
1
Zero compensation is not possible
3
10.85 bar
4
12.12 bar
The determined value is outside the tolerance range for zero compensation.
Proceed as follows to rectify the fault:
Check zero position of
brake pressure sender 1
G201
and
brake pressure sender 2
G214
in measured value block 005
Anchor
.
Interrogate fault memory
Chapter
.
Erase fault memory
Chapter
.
Conclude the transfer of data with the function
“06 - End output”
.
Switch off ignition.
Switch ignition on again.
Perform zero compensation again.