Audi A3 1997 Manual page 16

Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
V.A.G 1551 printer
00600
Potentiometer G92 in positioning
motor -V68 (for temperature flap) 1)
* Short to earth/SP
* Open circuit/short to
positive /SP
* Adaptation limit exceeded 2)
00601
Potentiometer -G112 in positioning
motor -V70 (for central flap)
* Short to earth/SP
* Open circuit/short to
positive /SP
* Adaptation limit exceeded 2)
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1) In the event of a fault at potentiometer -G92, positioning motor -V68 can be adjusted manually by actuating
with respect to the correctness of information in this document. Copyright by AUDI AG.
the "+" or "-" key for temperature selection (display range between 0°C and 50 °C).
2) This fault is only detected during basic setting.
3) Both end stops must be reached.
V.A.G 1551 printer
00602
Potentiometer -G114 in positioning
motor -V85 (for footwell/defroster
flap)
* Short to earth/SP
* Open circuit/short to
positive /SP
* Adaptation limit exceeded 1)
00603
Footwell/defroster flap positioning
motor -V85
* Blocked or de-energised /SP
1) This fault is only detected during basic setting.
2) Both end stops must be reached.
10
01 - Self-diagnosis, Electrical check
Possible causes of fault
- Short circuit, open circuit in wiring
or fault in pin assignment of con‐
nectors between -G92 and -E87.
Temperature flap stiff.
Potentiometer -G92 in -V68 defec‐
tive
- Short circuit, open circuit in wiring
or fault in pin assignment of con‐
nectors between -G112 and -E87.
Central flap stiff.
Potentiometer -G112 in -V70 defec‐
tive
Possible causes of fault
- Short circuit, open circuit in wiring
or fault in pin assignment of con‐
nectors between -G114 and -E87.
Footwell/defroster flap stiff.
Potentiometer -G114 in -V85 de‐
fective.
- Short circuit, open circuit in wiring
or fault in pin assignment of con‐
nectors between -V85 and
-E87.
Footwell/defroster flap stiff.
Positioning motor -V85 defective.
Fault remedy
- Use current flow diagram to locate
and eliminate short circuit, open cir‐
cuit in wiring or fault in pin assign‐
ment.
Check freedom of movement of tem‐
perature flap3)
Replace positioning motor -V68.
- Use current flow diagram to locate
and eliminate short circuit, open cir‐
cuit in wiring or fault in pin assign‐
ment.
Check freedom of movement of cen‐
tral flap3).
Replace positioning motor -V70
Fault remedy
- Use current flow diagram to locate
and eliminate short circuit, open cir‐
cuit in wiring or fault in pin assign‐
ment.
Check freedom of movement of
footwell/defroster flap2).
Replace positioning motor -V85.
- Use current flow diagram to locate
and eliminate short circuit, open cir‐
cuit in wiring or fault in pin assign‐
ment.
Check freedom of movement of
footwell/defroster flap.
Check positioning motor -V85 (=>
Final control diagnosis, Page
18 ).