Audi A3 1997 Manual page 195

Continuation from Page
Read out fault memory (using V.A.G 1551) and locate and rectify all faults displayed =>Page
Erase fault memory, terminate output =>Page
Start engine.
Initiate self-diagnosis (enter address word "08", select function 08 "Read measured value block" and display
group 001) and confirm entry with Q key =>Page
Repeat refrigeration capacity test => Page
The requisite refrigeration capacity is attained (compressor was not switched off).
↓
yes
↓
End
The following code is displayed in display zone 01 as a compressor shutoff criterion:
↓
Code "1"
for vehicles with pressure switch -F129 =>Page
70 (Perform electrical check on control unit -J293
for radiator fan)
Continued from page
Was the radiator fan -V7 switched to speed 2 during the test?
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
yes
with respect to the correctness of information in this document. Copyright by AUDI AG.
↓
Replace air conditioner pressure
switch -F129.
↓
Repeat refrigeration capacity test =>
Page 187
↓
Is the requisite refrigeration capacity
attained (compressor was not switch‐
ed off)?
↓ ↓
yes no
↓ ↓
End Replace pressure switch -F129
and bring vehicle to a VW and Au‐
di air conditioning service centre
(fault in refrigerant circuit).
Detach clamp (VW 3093) from refrigerant hoses.
Check actuation of temperature flap by positioning
motor for temperature flap -V68 (=>Page
control diagnosis).
188 (compressor was deactivated during the refrigeration capacity test).
26
187
As soon as the compressor is switched off (with compressor switched off), read
off the compressor shutoff criterion code from display zone 001.
189 (compressor shut-off criterion code "1" for vehicles with pressure switch -F129).
Detach connector to air conditioner pressure switch -F129 and jumper
Replace pressure switch
Repeat refrigeration capacity test
Heating, Air Conditioner - Edition 06.2000
↓
↓
.
4 .
.
↓
no
↓
↓
↓
No compressor shutoff crite‐
rion was identified
↓
Perform electrical check on
radiator fan control unit -J293
perform =>Page
contacts 3 and 4 at connector
=> Page
Fan -V7 is running at speed 2
↓
yes
↓
-F129.
↓
=> Page 187 .
7.1 - Checking air conditioner refrigeration capacity
Audi A3 1997 ➤
↓
Bring vehicleto a VW and
Audi air-conditioning serv‐
ice centre (fault in the refrig‐
18 , final erant circuit).
7
↓
other code =>Page
70
↓
no
↓
135 .
↓
↓
no
↓
Perform electrical check on radiator
fan control unit -J293
perform =>Page
.
31 .
187 .
189