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V.A.G 1551 printer Possible causes of fault Fault remedy
00604
Potentiometer -G113 in positioning
motor -V71 (for air flow flap) 1)
* Short to earth/SP
* Open circuit/short to
positive /SP
* Adaptation limit exceeded 2)
- Short circuit, open circuit in wiring
or fault in pin assignment of con‐
nectors between -G113 and -E87.
Air flow flap or fresh/recirculated air
flap stiff.
Potentiometer -G113 in -V71 defec‐
tive.
- Use current flow diagram to locate
and eliminate short circuit, open cir‐
cuit in wiring or fault in pin assign‐
ment.
Check air flow valve and fresh/recir‐
culated air flap3) for ease of move‐
ment.
Replace positioning motor -V71.
1) This positioning motor actuates the fresh/recirculated air flap in addition to the air flow flap.
2) This fault is only detected during basic setting.
3) Both end stops must be reached.
V.A.G 1551 printer Possible causes of fault Fault remedy
00606
Two-way valve for refrigerant shut-
off valve -N147 1)
▪ In the event of an-E87 with two
displays
Fault not intended
*Short to earth/SP
*Open circuit/short to
positive /SP
▪ In vehicles without map-controlled
engine cooling and one -E87 with
one display
Wrongly coded operating and dis‐
play unit -E87
Check and correct coding of -E87
(=> Page 27 ).
▪ In vehicles with map-controlled en‐
gine cooling and one -E87 with one
display
Wrongly coded operating and dis‐
play unit -E87
Short circuit or open circuit between
-N147 and -E87.
Two-way valve -N147 defective.
Checking and correcting coding of -
E87 (=> Page 46 ).
1) The two-way valve -N147 is only installed in vehicles with map-controlled engine cooling and one operating
and display unit -E87 with one display.
V.A.G 1551 printer Possible causes of fault Fault remedy
00625
Vehicle speed signal
* Implausible signal /SP
- Loose contact in the wiring be‐
tween road speed sender -G68,
dash panel insert or another com‐
ponent also connected to this signal
(e.g. radio or cruise control unit) and
-E87.
Invalid signal from speedometer -
G21/dash panel insert, or another
connected component destroys the
signal.
- Use current flow diagram to locate
and eliminate loose contact:
Check road speed signal from sender
-G21 or from the dash panel insert
(note all the components connected
to this signal wire).
=> Electrical System; Repair group
90
00779 3133
Ambient temperature sensor -G17
*Short to earth/SP
*Open circuit/short to
positive /SP
- Short circuit or open circuit be‐
tween -G17 and -E87.
Temperature sensor -G17 defec‐
tive.
- Use current flow diagram to locate
and eliminate short circuit or open cir‐
cuit
Check temperature sensor -G17
(=>Electrical check, Page 46 ).
Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
4.1 - Fault table 11