Audi A3 1997 Manual page 23

V.A.G 1551 printer
(cont.)
▼
V.A.G 1551 printer
01296
Centre vent temperature sender -
G191
* Short to earth /SP
* Open circuit/short to
positive /SP
V.A.G 1551 printer
01297
Footwell vent temperature sender -
G192
* Short to earth /SP
* Open circuit/short to
positive /SP
01582
Signal for refrigerant temperature1
* Implausible signal /SP
* Open circuit/short to
positive /SP
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Notes:
◆ The refrigerant temperature is calculated by the dash panel insert and transferred to the operating and
display unit -E87. If the refrigerant temperature exceeds 118 °C, the dash panel insert switches the output
to earth and -E87 switches off the air-conditioner magnetic clutch -N25.
◆ The fault "signal for refrigerant temperature" is only detected by the operating and display units with one
display.
V.A.G 1551 printer
65535 - Open circuit, contact resistance or loose
Control unit (-E87) contact in wiring (terminal 15 or 31) to -E87.
* Defective Operating and display unit -E87 defective.
Heating, Air Conditioner - Edition 06.2000
Possible causes of fault
▪ Vehicles with map-controlled
coding
Short circuit or open circuit in wiring
between -G191 and
-E87.
Sender -G191 defective.
Possible causes of fault
Operating and display unit -E87 as of index "H" except index "M" or
"N" (one display)
▪ Vehicles without map-controlled
cooling
Short circuit to earth on connector
B, contact 11 to -E87.
Operating and display unit -E87 in‐
correctly coded (sender -G191 is
not installed in Audi A3 without
map-controlled cooling).
▪ Vehicles with map-controlled
coding
Short circuit or open circuit in wiring
between -G191 and
-E87.
Sender -G191 defective.
Possible causes of fault
- Short circuit or open circuit in wir‐
ing between -G192 and -E87.
Sender -G192 defective.
- Open circuit or short in wiring be‐
tween dash panel insert and -E87.
Dash panel insert defective.
Possible causes of fault
Audi A3 1997 ➤
Fault remedy
Use current flow diagram to locate
and eliminate short circuit or open cir‐
cuit
Checksender -G191 (=>Electrical
check, Page 46
Fault remedy
Use current flow diagram to locate
and eliminate short circuit
Correctly code operating and display
unit -E87 (Checking coding => Page
27 ).
Use current flow diagram to locate
and eliminate short circuit or open cir‐
cuit
Check sender -G191 (=>Electrical
check, Page 46
Fault remedy
- Use current flow diagram to locate
and eliminate short circuit or open cir‐
cuit
Check sender -G192 (=>Electrical
check, Page 46
- Use current flow diagram to locate
and eliminate short circuit, open cir‐
cuit in wiring or fault in pin assign‐
ment.
Checksignal from dash panel insert
(=> Reading measured value block,
Page 31 ).
Fault remedy
- Use current flow diagram to locate and elim‐
inate fault in wiring to -E87.
Renew operating and display unit -E87.
).
).
).
17
4.1 - Fault table