ABS AUDI A4 2000 B5 / 1.G Brakes Read Mesure Value Block User Guide
[x] Cancel search | Manufacturer: AUDI, Model Year: 2000, Model line: A4, Model: AUDI A4 2000 B5 / 1.GPages: 79, PDF Size: 0.24 MB
Page 18 of 79
36
Left front ABS wheel speed sensor -G47-
for vehicles with Front Wheel Drive (FWD) and ABS
Pa
ge 18 of 79 Read Measurin
g Value Block
(function 08
)
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Page 19 of 79
01-74
Terminal
Wire connection to component ...
37
Hydraulic unit; activation of ABS solenoid valve relay -J106- 38
Right rear ABS wheel speed sensor -G44- 42
Right front ABS wheel speed sensor -G45-
for vehicles with Front Wheel Drive (FWD) and ABS/EDL/ASR for vehicles with All Wheel Drive (AWD) and ABS/EDL (throttle valve regulation)
44
Traction control (ASR) button
for vehicles with Front Wheel Drive (FWD) and ABS/EDL/ASR
45
TI (Transmission Influence)
for vehicles with Front Wheel Drive (FWD) and ABS/EDL/ASR
46
K-wire 47
Engine Control Module (ECM); AET (Actual Engine Torque)
for vehicles with Front Wheel Drive (FWD) and ABS/EDL/ASR
47
Brake light switch -F-
for vehicles with All Wheel Drive (AWD) and ABS/EDL
48
Brake light switch -F- 50
Battery + (terminal 30) 53
Hydraulic unit; left rear ABS inlet valve -N134-
Pa
ge 19 of 79 Read Measurin
g Value Block
(function 08
)
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Page 20 of 79
54
Hydraulic unit; right front ABS inlet valve -N99- 55
Hydraulic unit; right front traction control switch-over valve -N166- (primary piston circuit)
Pa
ge 20 of 79 Read Measurin
g Value Block
(function 08
)
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Page 21 of 79
01-75
Notes:
For test table:
The socket designations of the VAG1598 test box are identical to the terminal designations of the ABS control module
(w/EDL) -J104- in the wiring diagram. Incorrect test procedures can cause damage to the system. Do not bridge any
terminals other than those listed in the table.
Electrical Wiring Diagrams, Troubleshooting & Component Locations Specified values refer to readings on the VAG1526 and are not necessarily applicable for other test units.
If the measured values do not match specifications, carry out the corrective actions listed on the right side of the table.
Electrical Wiring Diagrams, Troubleshooting & Component Locations If values are obtained, also check wiring for intermittent loose terminals and short circuit to B+ and Ground (GND). This
applies especially to sporadic malfunctions.
Use the VAG1594 connector test kit for checking continuity (bridges).
If the measured values only differ slightly from the specifications, clean the sockets and harness connectors of the testers
and adapter leads (using contact spray G 000 700 04) and repeat the test. Before replacing actual components, check
wiring and connections once more. This is especially important if the specification for a resistance test is under 10 .
Pa
ge 21 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8
Page 22 of 79
01-76
Resistance measurement: Select measurement range on VAG1526 (200 ) Test
step VAG
1598/20
sockets Test of
Test requirements
- Additional work stepsSpecified
value Corrective action
1 5 + 33 Left front ABS inlet
valve -N101-, left
front ABS outlet
valve -N102-
2 54 + 26 Right front ABS inlet
valve -N99-, right
front ABS outlet
valve -N100- Electrical wiring
between control module
and hydraulic unit OK 9 22
- Check electrical wiring between
control module and hydraulic unit for
short circuit to Ground (GND) or B+
3 53 + 25 Inlet valve -N134-,
outlet valve -N136-
left-rear Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
4 6 + 34 Inlet valve -N133-,
outlet valve -N135-
right-rear
- If the electrical wiring is OK,
replace the hydraulic unit.
Pa
ge 22 of 79 Read Measurin
g Value Block
(function 08
)
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8
Page 23 of 79
01-77
Resistance measurement: Select measurement range on VAG1526 (200 )
Test step
VAG
1598/20
sockets Test of
Test requirements
- Additional work steps Specified
value Corrective action
5
Note:
Only for
vehicles with
ABS/EDL or
ASR 3 + 55 Left front traction
control switch-over
valve -N168-
(secondary piston
circuit)
Right front traction
control switch-over
valve -N166- (primary
piston circuit) Electrical wiring
between control
module and hydraulic
unit OK 12
28
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations - Check electrical wiring
between control module and
hydraulic unit for short circuit
to Ground (GND) or B+. - If the electrical wiring is OK,
replace the hydraulic unit.
6
Note:
Only for
vehicles with
ABS/EDL or
ASR 4 + 27 Left front traction
control outlet valve -
N169- (secondary
piston circuit)
Right front traction
control outlet valve -
N167- (primary piston
circuit)
Electrical wiring
between control
module and hydraulic
unit OK 12
28
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations - Check electrical wiring
between control module and
hydraulic unit for short circuit
to Ground (GND) or B+. - If the electrical wiring is OK,
replace the hydraulic unit.
Pa
ge 23 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8
Page 24 of 79
01-78
Resistance measurement: Select measurement range on VAG1526 (2k or 20 k ) Test
step VAG
1598/20
sockets Test of
Test requirements
- Additional work stepsSpecified
value Corrective action
7
9 + 10
1)
2)
35 + 10
3)
5)
36 + 10
4) Left front ABS
wheel speed
sensor -G47-
- Check electrical wiring between
control module and wheel speed
sensor for short circuit to Ground
(GND) or B+
8
15 + 14 1)
3) 4)
42 + 14 2)
5) Right front
ABS wheel
speed sensor
-G45-
Electrical wiring between
control module and
wheel speed sensor OK 400 2300
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
9 13 + 12 Left rear ABS
wheel speed
sensor -G46-
- If the electrical wiring is OK,
replace the relevant ABS wheel
speed sensor.
10 11 + 38 Right rear
ABS wheel
speed sensor
-G44- Outlets on ABS control module -J104- differ depending on installed equipment
Pa
ge 24 of 79 Read Measurin
g Value Block
(function 08
)
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Page 25 of 79
1) Only for vehicles with Front Wheel Drive (FWD) and ABS/EDL Bosch 5 2) Only for vehicles with Front Wheel Drive (FWD) and ABS/ASR Bosch 5 3) Only for vehicles with All Wheel Drive (AWD) and ABS/EDL Bosch 5, (ABS) pressure regulation 4) Only for vehicles with Front Wheel Drive (FWD) and ABS Bosch 5 5) Only for vehicles with All Wheel Drive (AWD) and ABS/EDL Bosch 5, throttle valve regulation
Pa
ge 25 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8
Page 26 of 79
01-79
Resistance measurement: Select measurement range on VAG1526 (200 ) Test
step VAG
1598/20
sockets Test of
Test requirements
- Additional work stepsSpecified
value Corrective action
11 2 + 37 ABS solenoid
valve relay -
J106- Electrical wiring between
control module and
hydraulic unit OK 30
80
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations - Check electrical wiring between
control module and hydraulic unit for
short circuit to Ground (GND) or B+. - If electrical wiring is OK, replace the
relay.
12 2 + 7 ABS return
flow pump
relay -J105-
Electrical wiring between
control module and
hydraulic unit OK 30
80
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations - Check electrical wiring between
control module and hydraulic unit for
short circuit to Ground (GND) or B+. - If electrical wiring is OK, replace the
relay.
Pa
ge 26 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8
Page 35 of 79
01-84
Function test and check for proper seal
Test
step VAG
1598/20
sockets Test of
Test requirements
- Additional work stepsSpecified value
Corrective action
17 Bridge
1 + 2,
7 + 37,
37 + 28
ABS return
flow pump -
V39-
Left front
traction
control
switch-over
valve -N168-
Left front
traction
control outlet
valve -N169- Repair Manual,
Brake System, Repair Group 47
- Connect VAG1310A
pressure gauge to front
left brake caliper and
bleed.
- Bridge terminals 3 +
28
Repair Manual, Brake System,
Repair Group 45
- ABS return flow pump
malfunctioning, replace ABS
hydraulic unit -N55-
Pressure
relief valve in
ABS hydraulic
unit -N55-
Left front ABS
outlet valve -
N102- - Switch on ignition for
max. 10 seconds and
switch off again.
Left front
traction control
switch-over
valve -N168-
switched ABS return
flow pump -
V39- runs Pressure on
pressure - Check left front traction control
switch-over valve -N168- and left
front traction control outlet valve -
N169- via resistance test test steps
5 + 6. Replace ABS hydraulic unit -
N55- if malfunctioning.
Pa
ge 35 of 79 Read Measurin
g Value Block
(function 08
)
11/20/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8