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with respect to the correctness of information in this document. Copyright by AUDI AG.
Notes:
◆ Earth applied e.g. to connector D contact 15.
◆ The voltage at terminal 58s is governed by the setting of the illumination control.
Select measuring range on hand-held multimeter V.A.G 1526:
Voltage measurement (20V =)
- Adapter cable V.A.G 1598/11 connected
Test step V.A.G 1598
socket
Testing of ▪ Test conditions
- Additional opera‐
tions
Specified value Remedies if specified
value not attained
1.10 45 and
earth
Terminal 58d on -
E87
▪ Ignition on
▪ Side lights on
- 0 to 12 V - Use current flow di‐
agram to locate and
eliminate open circuit
or short circuit
1.11 45 and
earth
Terminal 58d on -
E87
▪ Ignition on
▪ Side lights off
- 0 to 12 V - Use current flow di‐
agram to locate and
eliminate open circuit
or short circuit
Notes:
◆ Earth applied e.g. to connector D contact 15.
◆ The voltage at terminal 58d is generated as a square-wave signal by the dash panel insert. The brightness
of -E87 displays is determined by the actuation time. The measuring instrument displays the average value.
◆ The actuation time at terminal 58d is governed by the illumination control setting and the brightness level
determined by the photosensor in the dash panel insert.
Test step 2
Temperature sensor/sender
Select measuring range on hand-held multimeter V.A.G 1526:
Resistance measurement (20 kω)
- Adapter cable V.A.G 1598/11 connected
Test step V.A.G 1598
socket
Testing of ▪ Test conditions
- Additional opera‐
tions
Specified value Remedies if speci‐
fied value not at‐
tained
2.1 48
and
49
Ambient tempera‐
ture sensor -G17
- Measure tempera‐
ture at the sensor fit‐
ting location.
- Governed by the
temperature at the
sensor/pickup fitting
location
- Use current flow di‐
agram to locate and
eliminate short cir‐
cuit, open circuit or
contact resistance.
2.2 50
and
49
Dash panel temper‐
ature sensor -G56
- Measure tempera‐
ture at the sensor fit‐
ting location.
=> Table,
Page 52 .
- Replace tempera‐
ture sensor/sender.
2.3 47
and
49
Temperature sen‐
sor for fresh air in‐
take duct -G89
- Measure tempera‐
ture at the sensor fit‐
ting location.
2.4 25
and
49
Footwell vent tem‐
perature sender -
G192
- Measure tempera‐
ture at sender fitting
location.
Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
10.3 - Test in vehicles with an operating and display unit with two displays 51
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