01-4
Continuously lit:
There is a malfunction that causes increased
emissions. Check DTC memory for Motronic
ECM and automatic transmission (if installed).
Check DTC memory if there is a driveability
problem or a customer complaint, but the
Malfunction Indicator Lamp (MIL) is not lit. There
may be DTCs stored that do not cause the
exhaust MIL to light up immediately, but only
after engine is started again and malfunction is
recognized again.
Blinking:
There is a malfunction that causes damage to
the catalytic converter in this driving condition
(e.g. combustion misfire). In this case, vehicle
must only be driven at reduced power!
Note:
Catalytic converter must be checked after
malfunction is repaired.
Pa
ge 4 of 19 On Board Dia
gnostic
(OBD
)
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.1
01-10
VAS5051 tester or VAG1551 scan tool,
connecting and selecting functions
Test requirements:
Fuses for engine electronics OK
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Fuel Pump (FP) relay OK; checking Page 24
-53
.
Battery voltage at least 12.7 V
Ground (GND) connections at engine and
transmission OK
Procedure
Note:
Data Link Connector (DLC) is located in front left knee bolster. - Connect VAS5051 tester to vehicle with VAS5051/1 diagnostic wire.
Alternately, VAG1551 Scan Tool (ST) can also be attached using
VAG1551/3A adapter.
Pa
ge 12 of 19 On Board Dia
gnostic
(OBD
)
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.1
