Audi A3 1997 - Page 14

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B - No fault detected:
- Select diagnosis function "06 - End of output" in list => Page 15 .
2.5 - Fault table
Notes:
◆ Faults occurring in monitored sensors or components are stored in fault memory together with an indication
of the type of fault.
◆ The fault table is arranged according to the 5-digit fault codes on the left.
◆ All static and sporadic faults are stored in the fault memory:
A fault is recognised as being static if it is present for at least 2 seconds (ambient temperature sender at
least 60 seconds, coolant temperature sender only after engine has been running for at least 30 minutes).
If a fault is then no longer present, it is stored as being sporadic and "sporadic" also appears on display.
◆ After switching on ignition, all faults present are set to sporadic and only stored as being static if they are
still present after checking.
◆ Sporadic faults are erased if they do not re-occur in the course of 50 driving cycles (ignition on for at least
5 minutes, vehicle speed greater than 30 km/h).
◆ Do not immediately replace components indicated as being defective by VAS 5051, but rather: Start by
checking wiring and connectors to these components in line with current flow diagram. Also use current flow
diagram to check earth connections. This is particularly important if faults are output as being "sporadic".
◆ When eliminating an open circuit in the event of a data bus fault, always remember to twist the two data
wires of the corresponding bus system together to prevent electromagnetic interference.
◆ On completion of repair work, fault memory is to be interrogated again and erased.
Display on VAS 5051 Possible cause of trouble Fault remedy
00667
Ambient temperature signal
- Open circuit/short to positive
- Short to earth
- Open circuit in wiring or short circuit - Use current flow diagram to perform
fault-finding
- Ambient temperature sensor -G17
defective
- Replace -G17
- Vehicles with air conditioner: Fault
stored in fault memory
- Interrogate air conditioner fault mem‐
ory
=> Heating, Air Conditioner; Repair
Group 01
Display on VAS 5051 Possible cause of trouble Fault remedy
00771
Fuel gauge sender -G
- Open circuit/short to positive
- Short to earth
- Open circuit in wiring or short circuit
between dash panel insert and fuel
gauge sender -G or (4WD vehicles)
fuel gauge sender -2- -G169
- Use current flow diagram to perform
fault-finding
- Fuel gauge sender -G or (4WD vehi‐
cles) fuel gauge sender -2- -G169 de‐
fective
- Replace -G or -G169
=> Fuel Supply System - Petrol En‐
gines; Repair Group 20
Display on VAS 5051 Possible cause of trouble Fault remedy
00779
Ambient temperature sensor
-G17
- Open circuit/short to positive
- Short to earth
- Open circuit in wiring or short
circuit
- Use current flow diagram to per‐
form fault-finding
Audi A3 1997 ➤
Electrical system Self-diagnosis - Edition 02.2002
8 01 - Self-diagnosis