1998 AUDI A4 wiring

24-130


Electrical Wiring Diagrams, Troubleshooting & Component Locations
Electrical Wiring Diagrams, Troubleshooting & Component Locations
If no malfunctions are identified in the wiring: - Check wiring also on 4-pin harness connector for short circuits to each
other.
Connector on wiring harness,
socket
VAG1598/31 test box socket

4 10
Specified value: infinite ohms (open circuit)- Check shielded wire for short circuit to sensor wiring.
Connector on wiring harness,
socket
VAG1598/31 test box socket

4 32
3 32
Specified value: infinite ohms (open circuit)- Replace Motronic Engine Control Module (ECM) -J220 Page 24
-24
.
Pa
ge 58 of 61 Ox
yg
en sensor control, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.2

24-131
If no malfunction can be identified in the wiring:

- Replace Motronic Engine Control Module (ECM)
-J220 Page 24
-24
.

- Display readiness code Page 01
-101
. The
readiness code must be generated if the DTC
memory was erased Page 01
-105
.
Pa
ge 59 of 61 Ox
yg
en sensor control, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.2

24-133
When installing observe the following:

Note:

The wiring from the oxygen sensor must be
fastened at the exact location as previously
installed, to avoid contact with exhaust pipe.
The oxygen sensor threads are coated with a
tread sealing compound that must not come in
contact with the slits in the sensor tip.
Tightening torque: 55 Nm (41 ft lb)
Pa
ge 61 of 61 Ox
yg
en sensor control, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.2