Audi A3 1997 Manual page 70

Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
Ambient temperature-dependent resistance of temperature sensors/senders in kω(kilo-ohms)
At sensor/sender installation location, temperature measured in °C
70
Test step 3
Fresh air blower -V2 and relevant control unit -J216
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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
3.1 16
and
earth
3.2 4
and
earth
Note:
Earth applied e.g. to connector D contact 14.
64
01 - Self-diagnosis, Electrical check
(degrees Celsius)
-30
-20
-10
0
5
10
15
20
25
30
35
40
50
60
Testing of ▪ Test conditions
- Additional opera‐
tions
Control unit -J126 ▪ Ignition on.
Power supply for ▪ Ignition on.
fresh air blower -V2
Sender Temperature sensor
-G192 -G17
-G89
(52.7) 18.1
(28.6) 9.95
16.2 5.59
9.40 3.28
7.27 2.54
5.66 1.99
4.45 1.57
3.50 1.25
2.79 1.00
2.23 0.80
1.80 0.65
1.45 0.53
0.97 0.36
0.67 0.25
0.47 -
Specified value Remedies if speci‐
- Voltage less than 5 - Use current flow di‐
V. agram to locate and
Fresh air blower not eliminate short to
running. positive in the wiring
between -J126 and -
E87.
Replace control unit
-J126.
- approx. battery - Use current flow di‐
voltage agram to repair pow‐
er supply.
Sender
-G191
-
-
(47)
(29)
(23)
18.5
15
12.2
10.0
8.3
6.8
5.7
4.1
2.9
2.2
fied value not at‐
tained