instrument cluster AUDI A4 1995 B5 / 1.G Brakes ESP Electrical Testing Workshop Manual

01-309

Multi-pin connector at ABS control module
(w/EDL) -J104- Terminal
Connected to...

Terminal
25
Hydraulic unit; activation of left rear ABS outlet valve -
N136-
11
26
Hydraulic unit; activation of right front ABS inlet valve -N99-

5
27
Not assigned
-
28
Ground (GND) supply, terminal 31
-
29
Ground (GND) supply, terminal 31
-
30
Not assigned
-
31
Instrument cluster; activation of traction control indicator
light; (control module 4B0 907 389)
15
31
Rear left wheel speed sensor output; (control module 8D0
907 389/A/D/E)
-
32
Instrument cluster; ABS/EDL warning light activation
26
33
Not assigned
-
Electrical Wiring Diagrams, Troubleshooting & Component Locations
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01-314

Multi-pin connector at ABS control
module (w/EDL) -J104- Terminal
Connected to...

Terminal
70
Left-rear wheel speed sensor output; (control module 4B0
907 389)
EWD
70
Instrument cluster; activation of traction control indicator
light (control module 8D0 907 389/A/D/E)
15
71
Speed sensor output rear right
EWD
72
not occupied; (control module 4B0 907 389)
-
72
Front left wheel speed sensor output; (control module 8D0
907 389/A/D/E)
EWD
73
not occupied; (control module 4B0 907 389)
-
73
Front right wheel speed sensor output; (control module 8D0
907 389/A/D/E)
EWD
74
Not assigned
-
75
Sensor for transverse acceleration -G200-; voltage supply;
(control module 4B0 907 389)
3
75
not occupied; (control module 8D0 907 389/A/D/E)
-
76
Parking brake warning light switch -F9-
EWD
Electrical Wiring Diagrams, Troubleshooting & Component Locations
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01-316

Multi-pin connector at ABS control module
(w/EDL) -J104- Terminal
Connected to...

Terminal
81
Not assigned
-
82
Not assigned
-
83
Not assigned
-
84
Not assigned
-
85
Not assigned
-
86
not occupied; (control module 4B0 907 389)
-
86
Instrument cluster; standing time signal; (control module
8D0 907 389/A/D/E)
11
87
Not assigned
-
88
Not assigned
-
Electrical Wiring Diagrams, Troubleshooting & Component Locations
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01-332
Continuation: Function test: ABS warning light -K47-
Test
step VAG
1598/20
sockets Test of
Test
requirements
- Additional work
steps Specified value
Corrective action
17 - Function of
ABS warning
light -K47- - Switch on
ignition ABS warning light -
K47- lights up for two
(2) seconds and then
goes out. - If ABS warning light does not come on,
check voltage of electrical system and test
wiring from terminal 32 of ABS control
module -J104- to instrument cluster for short
circuit to Ground (GND).

See continuation on next page
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01-333
Continuation: Function test: ABS warning light -K47-
Test
step VAG
1598/20
sockets Test of
Test
requirements
- Additional work
steps Specified
value Corrective action
17 - Function of
ABS warning
light -K47-
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Repair Manual, Electrical Equipment, Repair Group
90; Instrument cluster
- The ABS warning lamp does not switch off after 2
seconds. The red "brake system malfunction" symbol
lights up after 2 seconds. Check wire from terminal 32
of ABS control module -J104- to instrument cluster for
short circuit to B+ or open circuit.
- If voltage of electrical system is OK and wiring from
terminal 32 of ABS control module -J104- to instrument
cluster is intact there is a malfunction in instrument
cluster.
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01-335
Continuation: Function test: Red brake warning symbol
Test
step VAG
1598/20
sockets Test of
Test requirements
- Additional work stepsSpecified value
Corrective action
18 - Function of red
"brake system
malfunction"
symbol
- Connect VAG1551 scan tool
and select address word 03
- For vehicles with automatic
transmission and instrument
cluster with DIS, depress the
brake pedal and select a
driving gear. The ABS/EDL indicator lamp
and the red "brake system
malfunction" symbol light up.
If the traction control indicator
light is OK, it lights up as
well. Repair Manual,
Electrical Equipment, Repair Group 90; Instrument cluster
- Malfunction in
instrument cluster
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01-337
Continuation: Function test: Traction control indicator light -K86-
Test step
VAG
1598/20
sockets Test of
Test
requirements
- Additional work
steps Specified value
Corrective action
19

Continuation: - Function of
traction
control
indicator light
-K86- - Switch on
ignition Traction control
indicator light -K86-
comes on for two
(2) seconds and
then goes out.
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations - If traction control indicator light does
not light up, check vehicle voltage and
wire from terminal 31 of ABS control
module -J104- to instrument cluster for
short circuit to B+ and open circuit.
- If traction control indicator lights
continuously, test wiring from terminal
31 of ABS control module -J104- to
instrument cluster for short circuit to
Ground (GND).

See continuation on next page
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01-338
Continuation: Function test: Traction control indicator light -K86-
Test
step VAG
1598/20
sockets Test of
Test
requirements
- Additional work
steps Specified
value Corrective action
19 - Function of
traction control
indicator light -
K86-
Repair Manual, Electrical Equipment, Repair
Group 90; Instrument cluster
- Are voltage of electrical system OK and wiring
from terminal 31 of ABS control module -J104-
to instrument cluster intact? malfunction in
instrument cluster
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