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Mercedes Benz C-Class S204, W204, C204 / GLK-Class X204
Ident. No.: 1315959G_EN
Status: 31.01.2013
© Webasto Thermo & Comfort SE
9
Fan Control
Wiring dia-
gram
Webasto components
Vehicle components
Colours and symbols
Legend
HG
TT-Evo heater
GE
Fan unit
rt
red
X1
6-pin heater connector
KB
A/C control panel
ws
white
X2
2-pin heater connector
A
Socket outlet/lighter
sw
black
X10
4-pin connector
Heater control
B
Flap positioning module bl
blue
F
fuse
ge
yellow
K1
Fan relay
ST 4
Connector, 4-pin, KB
br
brown
K2
Additional relay
gn
green
F1
Fuse, 20A
F2
30A fuse replaced with
1A.
IPCU
Pulse width modulator
IPCU adjustment values:
Duty cycle: 56-62%
Frequency: 400Hz
Voltage:
3.0V
X
Cutting point
Function:
High-side
Wiring colours may vary.
Webasto
31
30
15
Mercedes
HG
X2
1
2
X1
5
2
F2
F1
gn/ws
0,75²
ge
0,5²
rt/sw
0,5²
rt
4²
br
0,5²
X10
86
85
30
87a
87
K1
br
4
bl
4²
A
IPCU
85
86
br
86
85
30
87a
87
K2
2
bl
4²
sw
rt
rt
0,5²
1
sw
0,5²
3
6
rt/ge
F
A
br
0,5²
br
rt/ge
KB
St 4
4
1
St 4
3
2
2
1
GE
M
4
rt
rt
LIN-Bus
Kl.31
ws
ws
M
M
M
M
B
5
7
8
9