Page 101 of 339
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System in basic setting 11
De
press pedal and hold...
Indicated on display
- Operate pedal with substantial foot
pressure and hold.
Pedal moves down
Hydraulic pump runs
Pedal comes back
System in basic setting 11
Rel. pedal; FR/FL bleed screw OPEN <3> Indicated on display
- Press key 3 on V.A.G 1551 or arrow up
key on VAS 5051.
System in basic setting 12
Please wait...
(10 secs.)
Indicated on display
Hydraulic pump runs
System in basic setting 12
Depr. pedal 10X; bleed screw CLOSED <3> Indicated on display
- Press key 3 on V.A.G 1551 or arrow up
key on VAS 5051.
Стр. 78из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program
Page 102 of 339
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System in basic setting 13
De
press pedal and hold...
Indicated on display
- Operate pedal with substantial foot
pressure and hold.
Pedal moves down
Hydraulic pump runs
System in basic setting 13
Rel. pedal; FR/FL bleed screw OPEN <3> Indicated on display
- Press key 3 on V.A.G 1551 or arrow up
key on VAS 5051.
System in basic setting 14
Please wait...
(10 secs.)
Indicated on display
Hydraulic pump runs
System in basic setting 14
Depr. pedal 10X; bleed screw CLOSED <3> Indicated on display
- Press key 3 on V.A.G 1551 or arrow up
key on VAS 5051.
Стр. 79из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program
Page 103 of 339
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System in basic setting 15
De
press pedal and hold...
Indicated on display
- Operate pedal with substantial foot
pressure and hold.
Pedal moves down
Hydraulic pump runs
Pedal comes back
System in basic setting 15
Rel. pedal; FR/FL bleed screw OPEN <3> Indicated on display
- Press key 3 on V.A.G 1551 or arrow up
key on VAS 5051.
System in basic setting 16
Please wait...
(10 secs.)
Indicated on display
Hydraulic pump runs
System in basic setting 16
Depr. pedal 10X; bleed screw CLOSED <3> Indicated on display
- Press key 3 on V.A.G 1551 or arrow up
key on VAS 5051.
Стр. 80из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program
Page 104 of 339
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System in basic setting 17
Partial bleedin
g ended
Indicated on display
-
Press key.
Rapid data transfer HELP
Select function XX Indicated on display
- Press keys -0- and -6- to end output.
Rapid data transfer Q
06 - End output Indicated on display
- Confirm entry with Q key.
Rapid data transfer Help
Enter address word XX Indicated on display
The basic setting is used to bleed the
hydraulic unit only. The brake system
must be bleed separately.
Repair Manual, Brake System, Repair
Group 47; Bleeding brake system, vehicles
with and without ABS - Press C key.
- Switch ignition off.
- Disconnect connections to V.A.G 1551
Scan Tool.
- Bleed brake system.
Стр. 81из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program
Page 116 of 339
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Switch to measuring range:
Voltage measurement (20 V =)
Test
step V.A.G
1598
sockets Item tested
Test
conditions
- Additional
operations Specification
Measures for
deviations from
specification
3 8 + 4 Voltage supply
(terminal X) to
ABS Control
Module
(w/EDL) -
J104-
Ignition
switched on10.0 to 14.5 V
Electrical Wiring
Diagrams,
Troubleshooting &
Component Locations
binder - Check wire using
wiring diagram
4 8 + 18 Function of
brake light
switch -F- Ignition
switched off
Brake pedal
not
depressed
0.0 to 0.5 V
Electrical Wiring
Diagrams,
Troubleshooting &
Component Locations
binder - Check brake light
switch -F- and Read
measured value
block, display group
003
- Check wiring using
wiring diagram
- Press brake
pedal approx. battery
voltage - Checking brake light
switch -F- Page 01
-
131
Стр. 12из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check
Page 121 of 339

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Switch to measuring range:
Voltage measurement (2 V )
Test
step V.A.G
1598
sockets Item
tested Test
conditions
- Additional
operations Specification
Measures for deviations
from specification
9 19 + 20 Right front
ABS wheel
speed
sensor -
G45-
voltage
signal
Vehicle
raised
- Check installation of
right front ABS wheel
speed sensor -G45- and
rotor.
Ignition
switched off
- Rotate front
right wheel at
approx. 1
rev./sec. min. 65 mV
alternating
voltage - Check whether right
front ABS wheel speed
sensor -G45- has been
interchanged and Read
measured value block
Page 01
-61 , display
group number 001
10 1 + 2 Left front
ABS wheel
speed
sensor -
G47-
voltage
signal Vehicle
raised
- Check installation of left
front ABS wheel speed
sensor -G47- and rotor.
Ignition
switched off
- Rotate front
left wheel at
approx. 1
rev./sec. min. 65 mV
alternating
voltage - Check whether left front
ABS wheel speed sensor
-G47- has been
interchanged and Read
measured value block
Page 01
-61 , display
group number 001
Стр. 17из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check
Page 122 of 339

Downloaded from www.Manualslib.com manuals search engine 01-119
Switch to measuring range:
Voltage measurement (2 V )
Test
step V.A.G
1598
sockets Item
tested Test
conditions
- Additional
operations Specification
Measures for deviations
from specification
11 22 + 23 Right rear
ABS wheel
speed
sensor -
G44-
voltage
signal
Vehicle
raised
- Check installation of
right rear ABS wheel
speed sensor -G44- and
rotor.
Ignition
switched off
- Rotate rear
right wheel at
approx. 1
rev./sec. min. 190 mV
alternating
voltage - Check whether right
rear ABS wheel speed
sensor -G44- has been
interchanged and Read
measured value block
Page 01
-61 , display
group number 001
12 6 + 5 Left rear
ABS wheel
speed
sensor -
G46-
voltage
signal Vehicle
raised
- Check installation of left
rear ABS wheel speed
sensor -G46- and rotor.
Ignition
switched off
- Rotate rear
left wheel at
approx. 1
rev./sec. min. 190 mV
alternating
voltage - Check whether left rear
ABS wheel speed sensor
-G46- has been
interchanged and Read
measured value block
Page 01
-61 , display
group number 001
Стр. 18из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check
Page 139 of 339

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Features of 4MOTION
In order to utilize the engine's maximum
performance for a test, e.g. on a rolling road
test bed, the longitudinal acceleration sensor -
G251- must be switched off Page 01
-264 ,
Initiating basic setting, Display group number
040.
Switch ignition off and on again to reactivate
the longitudinal acceleration sensor -G251-.
All-wheel drive vehicles with a Haldex coupling
are equipped with EDL (Electronic Differential
Lock).
Special detail for bleeding brake systems
with ABS/EDL
If a chamber in the brake fluid reservoir has run
empty, basic setting must be performed for
bleeding the brakes Page 01
-264 .
V.A.G 1551 scan tool or tester VAS 5051
The On Board Diagnostic must be initiated at
the commencement of troubleshooting.
Electrical malfunctions which influence the
braking characteristics will be stored.
They can be checked with the V.A.G 1551
Scan Tool, Vehicles system tester V.A.G 1552
or Vehicle Diagnosis, Testing and Information
System VAS 5051.
The program card in the V.A.G 1551 must be at
least version 9.0 and in vehicle system tester
V.A.G 1552, at least version 6.0.
Стр. 4из 10 ABS Mark 60 On Board Diagnostic (OBD), vehicles from my 10.00