VOLKSWAGEN JETTA 1998 Service Manual

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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

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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

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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

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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

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ABS,
ABS/EDL and
ABS/EDL/ASR
ITT Mark 20
IE, electrical
check
Special tools and
equipment

V.A.G 1598/21
Adapter

V.A.G 1594 A
Adapter set

V.A.G 1526 A
Multimeter

V.A.G 1921 Pliers
Стр. 1из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

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The test steps from Page 01-111 are valid
for:
For vehicles on which the On Board Diagnostic
(OBD) does not give any indication of the
source of the malfunction, work through the
complete electrical check.

For vehicles on which the OBD provides a
direct indication of the source of the
malfunction, only carry out the test steps
recommended in the Diagnostic Trouble Code
(DTC) table (directed entry).
An overview of all the test steps in the electrical
check can be found on Page 01
-109 .
Стр. 2из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

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Test requirements

Switch ignition and electrical
consumers off before beginning the
check (headlights, lighting, fan ...).

Fuses S9, S13, S178 and S179 must
be OK (remove fuses from fuse holder
to check).

Removing air cleaner
- Pull connector -2- off mass air flow
sensor.
- Release spring-type clip -1- on air duct
hose with pliers V.A.G 1921 and pull
hose off air cleaner.
- Remove air cleaner bolts -3- and take
out air cleaner -4-.
Стр. 3из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

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- Release ABS control module (w/EDL) -
J104- connector -arrow 1- and pull off -
arrow 2-.

The specified values are matched to the
V.A.G 1526 and are not necessarily
applicable for other test units. - Connect test box V.A.G 1598/21 -1- to
multi-pin connector of ABS control
module (w/EDL) -J104- (-2-).
Стр. 4из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

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Multi-pin connector with contact
assignment


Note:
All contacts not listed are currently not
assigned and must never be connected to
other components!
Contact assignment of connectors for
voltage supply and On Board Diagnostic
(OBD) with V.A.G 1551 Scan Tool
Contact
4 = Ground (terminal 31)
Contact
16 = Positive (terminal 30) to S12
Contact
7 = K wire to contact 7 of multi-
pin connector T25 of ABS
control module (w/EDL) -
J104-
Contact assignment of connector T25
wiring harness/ABS control module
(w/EDL) -J104-
Стр. 5из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

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01-107


Contact
Wiring connection to component ...
1
Left front ABS wheel s peed sensor -G47-
2
Left front ABS wheel s peed sensor -G47-
3
Coding bridge to contact 14
4
Voltage supply to ignition switch
5
Left rear ABS wheel speed sensor -G46-
6
Left rear ABS wheel speed sensor -G46-
7
Connector T16/7, K wire
8
Ground point left in engi ne compartment and Ground connection in engine
compartment wiring harness
9
Voltage supply fr om battery +
10
Data bus wire Wiring diagrams
11 Data bus wire Wiring diagrams
12 Vehicles with navi gation system only
Стр. 6из 31
ABS, ABS/EDL and ABS/EDL/ASR I TT Mark 20 IE, electrical check
Volkswagen Technical Site: http://v olkswagen.msk.ru http://vwts.info http://vwts.ru
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