SI007
3C
3NC
3NO
1NO
1NC
1C
LH WING/ENGINE
SWITCH
OFF
WING/ENG
ENG ON
2NO
2NC
2C
4C
4NC
4NO
TAIL DE-ICE
SWITCH
MANUAL
(MOM)
AUTO
OFF
2C
2NO
2NC
1NO
1NC
1C
3C
4C
3NC
3NO
4NC
4NO
SI032
OFF
ON
SI062
A2
A3
ALCOHOL
PUMP SW
SI008
3C
3NC
3NO
1NO
1NC
1C
RH WING/ENGINE
SWITCH
OFF
WING/ENG
ENG ON
2NO
2NC
2C
4C
4NC
4NO
SI088
A2
A3
WING XFLOW
SW
WING XFLOW
OFF
1NO
1NC
1C
5C
6C
5NC
5NO
6NC
6NO
3NO
3NC
3C
2NO
2NC
2C
4C
4NC
4NO
SI063
W/S ANTI-ICE
BLEED AIR
CONTROL SW
HIGH
OFF
LOW
A3
A2
A1
AC
SI046
FUEL TRANSFER
R TANK
L TANK
OFF
(REF PRESSURIZATION SYSTEM)
(REF RH FUEL CONTROL)
(REF ENGINE INLET & WING
ANTI-ICE)
(REF LH FUEL CONTROL)
22
2
3
1
6
7
15
20
17
18
19
16
5
4
8
9
10
11
12
13
28
29
25
26
23
24
36
37
38
39
PI111
JI111
2
3
1
14
15
8
9
10
11
12
13
4
5
6
7
20
21
22
18
23
24
25
19
PI113
JI113
LH TILT PANEL
(REF CABIN ENVIRONMENTAL)
(REF PRESSURIZATION)
SI059
A3
A4
A5
A6
A1
A2
AC
B3
B4
B5
B6
B1
B2
BC
C3
C4
C5
C6
C1
C2
CC
BLEED AIR
SELECT SWITCH
C
OFF
LH
EMER
RH
BOTH
FRESH
AIR
D3
D4
D5
D6
D1
D2
DC
SI069
A3
A1
A2
B2
B3
B1
PRESS
DUMP
SWITCH
PRESSURE
DUMP
SI121
A3
A1
A2
B2
B3
B1
PRESS
STANDBY
SWITCH
NORM
STANDBY
FI115
LH TILT
LED PANEL
A
B
PI115
JI115
RED(VEND)
BLK(VEND)
(REF W/S ANTI-ICE BLEED
& ALCOHOL)
(REF TAIL DE-ICE)
(REF TAIL DE-ICE)
(REF PRESSURIZATION SYSTEM)
(REF CABIN ENVIROMENTAL)
(REF ENGINE INLET & WING
ANTI-ICE)
CABIN
LH TILT PNL
LH TILT PNL
CABIN
2
1
RI007
(REF INTERIOR LIGHTS)
SI045
1NO
1NC
2NC
2NO
1C
2C
ON
OFF
NORM
RH BOOST
PUMP
SI047
1NO
1NC
2NC
2NO
1C
2C
ON
OFF
NORM
LH BOOST
PUMP
(WHT)
(BLU)
DI054
BLK
WHT
SI028
A2
A3
A1
TEMP SELECT
MANUAL
SWITCH
A2
A1
A3
SI027
TEMP SELECT
SWITCH
MANUAL
NORM
HOT
MANUAL
COLD
REFER TO 28-20-01
REFER TO 30-40-03
REFER TO 30-10-01
REFER TO 30-20-01
REFER TO 33-10-01
REFER TO 21-30-01
REFER TO 21-60-01
REFER TO 28-20-02
REFER TO 30-20-01
REFER TO 30-10-01
REFER TO 21-30-01
REFER TO 21-30-01
REFER TO 21-60-01
6308633M5
SWITCH PANELS
Figure 03. (Sheet 3)
CESSNA
®
MODEL 525B (SERIALS -0057 AND -0135 AND ON)
WIRING DIAGRAM MANUAL
©TEXTRON AVIATION INC.
31-10-01
Figure 03
Page 6
ICA-525B-34-00004
Feb/23/2022