buttons AUDI A4 2000 B5 / 1.G Climate Control Components In Passenger Compartment Workshop Manual

If 22 C (71 F) is always displayed after
switching on the ignition regardless of the last
setting, check voltage supply to E87 (terminal
30) using wiring diagram.

E87 readout can be switched over from C to
F and vice versa by pressing the "temperature
+" and "recirculating air" buttons
simultaneously.

If E87 remains in operation after switching off
the ignition, test cable connection to E87
connector -D- contact -1- for short circuit to
positive (connection for auxiliary heater
operation) using wiring diagram.
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87-122

Notes:

If both display fields of A/C control head -E87-
(Part No. 8L0 820 043 beginning with Part No.
index letter "D") are not illuminated when the
ignition is switched on, check the voltage supply
from terminal 58d (dimmer) to A/C control head
-E87- page 01
-115
(Electrical test).

If the buttons for A/C control head -E87- (Part
No. 8L0 820 043 beginning at Part No. index
letter "D") do not light up when the light is
switched on, check the voltage supply from
terminal 58s (illumination) to A/C control head -
E87- page 01
-115
(Electrical test).

If an A/C control head -E87- with the Part No.
8L0 820 043 beginning with Part No. index
letter "D"is installed in a 1997 m.y. vehicle, the
brightness in the switch cannot be changed
page 01
-115
(Electrical test).

If an A/C control head -E87- with Part No. 8L0
820 043 including Part No. index letter "C" is
installed in a 1998 m.y. vehicle, the brightness
in the switch cannot be changed page 01
-
115
(Electrical test).
Pa
ge 5 of 34 Climate control com
ponents in
passen
ger com
partment, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.HA01.87.21