Audi A3 1997 Manual page 74

Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
Voltage tester V.A.G 1527,
Operating and display unit connected to the test box (adapter cable V.A.G 1598/11 and /12)
- Adapter cable V.A.G 1598/11 connected
Test step V.A.G 1598
socket
5.3 4
and
1
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Select measuring range on hand-held multimeter V.A.G 1526:
Current measurement (200 mA =)
Operating and display unit connected to the test box (adapter cable V.A.G 1598/11 and /12)
- Adapter cable V.A,G 1598/11 connected.
Test step V.A.G 1598
socket
5.4 Earth
and
1
Note:
Earth applied e.g. to connector D contact 14.
68
01 - Self-diagnosis, Electrical check
Testing of ▪ Test conditions
- Additional opera‐
tions
"Air conditioner ▪ Engine running
compressor cut-in" ▪ Compressor off
output (lamp in ECON but‐
ton of -E87 lights
up).
Switch on compres‐
sor.
Testing of ▪ Test conditions
- Additional opera‐
tions
"Air conditioner ▪ Engine running
compressor cut-in" ▪ Compressor
output switched off.
Switch on compres‐
sor.
Specified value Remedies if speci‐
- LED in voltage - Use current flow di‐
tester lights up. agram to locate and
LED in voltage test‐ eliminate open cir‐
er lights up a little cuit or short circuit.
less brightly. Rectify AC com‐
pressor shutoff con‐
dition in the engine
control (emergency
operation).
Use the current flow
diagram to locate
and rectify short to
earth.
Specified value Remedies if specified
value not attained
- Less than 5 mA - Use current flow di‐
Less than 50 mA agram to locate and
Compressor is not eliminate short circuit.
switched on. Check actuation of
control unit -J293
(=>Page
Renew operating and
display unit -E87.
fied value not at‐
tained
70 ).