battery AUDI A4 1999 B5 / 1.G AFC Engine Cooling System Components
Page 3 of 12
19-5
Coolant fan control thermal switch,
checking
The coolant fan control thermal switch -F54- is
located in the lower left part of the radiator.
Terminal assignment
3-pin connector Switching temperature
On
Off
1 = 1st stage
92 - 97 C
(198 - 207 F)
approx. 84 C (183 F)
2 = 2nd stage
99 - 105 C
(210 - 221 F)
approx. 91 C (196 F)
3 = Battery positive voltage (B+)
Pa
ge 3 of 12 Coolin
g system, com
ponents
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE01.19.2