11-1 Wiring Schematics
450 LXi
Owner Manual
~ 11-1-122 ~
Rev. “C”
Wiring Schematic 0089289 - Schematic, Wiring, Hyd, Rftop A/C, Elec. Ht, Ctl. - Page 2 of 5
IGNITOR
+
- SE
PREHEATER
NOZZLE
FAN
MOTOR
COMBUSTION
SOLENOID
VALVE
THERMOSTAT
THERMOSTAT
NOZZLE
TEMP
SENSOR
FLAME
SENSOR
HEATER ASSEMBLY
SPARK
ENABLE
OPERATION
INDICATOR
PREHEAT
CIRCULATION
PUMP
SPARK
POWER
SOLENOID
VALVE
TEMP
FLAME
3
4
2
6
1
5
A
ON/OFF
CIRC
PUMP
RUN IN
GND
CIRC-PUMP-OUT
24V-PWR1
24V-PWR2
WEBASTO
CONTROL
ELECTRONICS
CIRC-PUMP
RUN-CMD
24V
CONTROL
POWER
1
C
HEATER-ON
2
1
Q1
Q2
Q3
Q4
IGNITION
DIAG1
F
DIAG2
2
3
GND
1
4
ECONO
MODE
FLAME
INDICATOR
D
SG-1572D
CONTROL UNIT
WEBASTO THERMO 230 COOLANT HEATER
6
2
1
8
DIAGNOSTIC
CONNECTOR
X4
A3 MODULE
I/O CTL MUX
21
C3
IGN-WEBASTO
5
C600
V
C241
A-ZONE
IGN-24V
IGNITION
BI-DIRECTIONAL
ISOLATOR RELAY
DELAY
BATTERY PDU
C608
12
2
C627
B
X2
A
C
D
BAY BLK6
IGN-WEBASTO
IGN-WEBASTO
(24V)
RED/WHT
BLU
ORG
GND
DIAG2
DIAG1
BRN
RED
BLK
ECONO-MODE
FLAME
IGN-WEBASTO (24V)
SPLICE 3
A-ZONE
FRAME
REAR PDU
BAY2
DC LOAD
2
3
4
F2
80A
24V-H
BATT PDU
F8 10A
F9 10A
F10 10A
J3
HEATER
HEATER BED+
HEATER DASH+
MODULE "F"
BLUE LOOP
HEATER KIT+
HEATER LR+
F3
80A
ST
F9 10A
F10 10A
BLUE LOOP
MODULE "E"
J3
4
3
BAY2 HTR+
F1
80A
F8 10A
F10 10A
BLUE LOOP
MODULE "G"
J2
4
2
J3
BLUE LOOP
1
2
3
J1
3
BLUE LOOP
MODULE "K"
ENG PREH SW REL-
WEBAS HT VAL RL-
4
3
J2
ST
ST
1
2
SIG
COM GND
COM GND
SIG
2
1
1
2
SIG
COM GND
COM GND
SIG
3
2
1
12V
J3
J1
GND
GND
ST4
GND
F1
3A
X1
A
C
B
BAY BLK7
GND-A
WEBAS HT+2
WEBAS HT+1
WEBAS HT-
3
2
1
RED
RED/WHT
BRN
BLK13
F17 25A
F18 25A
A
BLK28
GND
BAY BLK8
12V
12V
12V
D
X3
BAY BLK5
B
A
C
6
5
4
WEB ON/OFF
WEB ON/OFF
CIRC-PUMP RUN
WEBAS-PUMP
HEATER-ON
CIRC-PUMP RUN
WEBAS PUMP
HEATER-ON
BLK
ORG
BLK
BLU
30
87
85
86
F21 10A
K4
ENGINE
BLK31
B
BLK28
87
30
85
BLK33
K3
86
WEBASTO
HEAT
BATT PDU
12V-H
24V
12V
GND
F7 80A
24V
GND
24V
24V
12V
12V
12V
GND
TO
TO
BATT PDU
GND
TO
24V
F19 10A
12V
F10 10A
WEBAS
HT
VAL
REL-
S8
SHOWER
FAN RLY
PRIV FAN
12V
SIG
COM GND
KITCHEN SWITCH PANEL
PMC
LOCIC
WEBASTO
HEATER
J2
SW CH9
4
2K
1
3
2
J3
12V
SIG1
COM GND
PMC
LOCIC
MODULE "D"
YELLOW LOOP
PREHEAT
DASH SWITCH
PMC
SIG2
-
YEL
LOOP
PMC
SIG1
-
BLUE
LOOP
PMC
SIG2
-
YEL
LOOP
PMC
SIG1
-
BLUE
LOOP
4
COM
GND
3
J2
BATT
FUSED
3
4
2
1
COM
GND
J3
BATT
FUSED
2
1
5A
F2
10A
F1
FAN
BED
FAN
BATH
PRIV
FAN
BLUE LOOP
BLUE LOOP
YELLOW LOOP
J1
J1
J1
00-00838-410
00-00838-410
00-00838-410
00-00702-320
00-00850-010
00-00622-110
CPU
FUEL
OVERTEMP
COOLANT
MANUAL
RESET
THERMOSTAT
DIAG1
DIAG2
FLAME
ECONO-MODE
GND
COOLANT
CIRCULATION
PUMP
C920
ENGINE
PREHEAT
3
2B
B
SPLICE
BLK
C930
SPLICE
19
ENG HEAT-
ENG HEAT SIG
AIR COMP-
GEN START-
DRIVER
ELECTRICAL
BAY
FRT BODY
HARN
ENG HEAT SIG
10
11
D
SPLICE
BLK25
HEATER
BATH-
BLK10
SPLICE
23
SPLICE
24
HTR BATH+
HTR BATH-
BAY
BLK5B
WEBAS PUMP+
WEBAS HT-B
WEBAS HT-A
WEBAS HT-
BLK5B
BAY
S33
SPLICE
3
BLK13
BLK28
3
GND
ST4
24V
GND
WEBASTO
PUMP
WEBAS HT VAL+
GND
BLK28
12V
12V
24V
GND
BAY
BLK5A
WEBASTO
HEAT
VALVE
WEBAS HT-
WEBAS HT+2
WEBAS HT+1
SPLICE
RLY
ST2
GND
12V
SPLICE
BLK21
ST1
F
12V
GND
BED-
HEATER
BLK4
6
5
BLK23
5
6
BLK52
6
5
DASH
FAN
BLK21
12V
GND
ST1
SPLICE
HEATER
DASH-
E
BLK4
3
4
BLK26
3
4
BLK23
1
2
LR-BR
RGT HARN
RGT HARN
LR-BR
BAY LOAD
CTR HARN
CTR HARN
BAY LOAD
BAY MUX
HARN
BAY LOAD
CTR HARN
FAN
BLK23
12V
ST2
CTR HARN
BAY LOAD
SPLICE
HEATER
LR-
M
BLK8
9
10
RGT HARN
BLK63
LR-BR
11
12
BLK41
1
2
GND
LIV-RM
KIT
FAN
BAY LOAD
CTR HARN
GND
KIT-
HEATER
SPLICE
BLK25
E
ST2
12V
13
12
BLK10
RGT HARN
BLK67
LR-KIT
15
14
BLK51
2
1
BAY MUX
HARN
FAN
BAY2A
SPLICE
29
BAY2 HTR+
BAY2 HTR-
BLK11
BAY2A HTR-
BAY2A HTR+
SPLICE
30
BAY LOAD
CTR HARN
FAN
BAY1
BAY1 HTR+
BAY1 HTR-
BAY2
HTR-
ST2
BLK25
SPLICE
12V
J
9
8
GND
BLK4A
1
2
2
1
BLK4
BAY
BAY
FAN
BAY4
BAY LOAD
CTR HARN
BAY4
SPLICE
BLK25
K
HTR+
ST2
11
10
2
1
BLK11
BLK10
BAY4 HTR+
GND
12V
BAY MUX
HARN
10K HTR
5K HTR
10K HTR
10K HTR
10K HTR
10K HTR
5K HTR
5K HTR
0086582
BAY LOAD CTR HARN
HARNESS
PART
0070136
LR-BATH HARN
0086585
0070137
LR-BR RGT HARN
LR-KIT HARN
0086587
0102600
0086589
LR-BR LEFT HARN
FRT BODY HARN
BAY MUX HARN
BATH+
BLK54
HARN
LR-KIT
BLK51
12
13
1
2
14
13
BLK30
BLK59
2
1
LR-BATH
HARN
HTR
BATH+B
HTR
BATH-B
HTR
BATH+A
HTR
BATH-A
BAY MUX
HARN
BAY LOAD
CTR HARN
HARN
CTR HARN
HARN
HARN
HARN
FRAME HARN
A-ZONE HARN
BAY2 HARN
REAR PDU HARN
0103144
0086067
0086588
0072153
GND-A
WEBAS HT+1
WEBAS HT+2
(24V)
DRIVER
ELECTRICAL
BAY
IGN-24V
IGN-WABASTO
GND
BUSBAR
BB3-2
BATTERY PDU
GND
PREHEAT
ENG
PREH
SW
REL-
V17
RELAY
P2
(CIRCULATES
COOLANT THRU
CONVECTORS)
BLK27
GND
H
ST3
SW7
(NOT USED)
WEBASTO HEATER
SWITCH MUST BE
"ON" FOR HOT
POTABLE WATER
AND FOR HYDRONIC
HEATING.
SH 4
BLUE
LOOP
CONVECTOR FANS
CONTROLLED BY
HYDRONIC HEATING
THERMOSTAT.
CHASSIS MULTIPLEX
LOCATED IN BAY 3.
CONVECTOR\
HOUSE\PMULTIPLEX
HOUSE\PMULTIPLEX
LOW AMP
OUTPUTS
LD3
LD4
SH 4
LOOP
YELLOW
SH 3
LOOP
BLUE
SH 1
BLUE
LOOP
LAV TST SIG-
LAV TST SIG+
PRIV LAV
HYDRONIC
THERMOSTAT
HEATER
BLK??
SH 5
LOOP
BLUE
SH 4
YELLOW
LOOP
THIS TURNS THE
WEBASTO HYDRONIC
HEATER "ON".
WEBASTO HYDRONIC HEATER
HYDRONIC CONVECTOR FANS
PFANS
B
C
B
CHANGE HARNESS PART NUMBERS
BT
BT
01/11/06
13177S
C
CHANGE HARNESS PART NUMBERS
BT
BT
02/06/06
12997H
D
CHANGE HARNESS PART NUMBERS
BT
BT
02/07/06
13177V
INACTIVATES NOS.
LET.
WAS
REVISIONS
DR.
APP.
CCN
SCALE
BLUE BIRD CORPORATION
FORT VALLEY GEORGIA, U.S.A.
CCN
DR.
APP.
BY
BY
D
PAGE
__OF__
1
2
3
4
5
A
B
C
D
E
F
G
H
6
7
0089289
SCHEMATIC,WRG,HYD,RFTOP A/C,ELEC HT.CTL
03/09/05
04/27/05
RK
RK
13148D
NONE
2
5
M450LXI
CONFIDENTIAL
The information hereon is confidential
business information and may not be copied
or used for any purpose unless permission
is expressly granted in writing by
Blue Bird Corporation.
Copyright 2004
Blue Bird Corporation
All rights reserved
A
CHANGE HARNESS PART NUMBERS
BT
BT
11/11/05
13177D
Summary of Contents for 450 LXi
Page 1: ......
Page 11: ...450 LXi Owner Manual Rev C NOTES...
Page 37: ...450 LXi Owner Manual Rev C NOTES...
Page 51: ...450 LXi Owner Manual Rev C NOTES...
Page 59: ...450 LXi Owner Manual Rev C NOTES...
Page 63: ...450 LXi Owner Manual Rev C NOTES...
Page 103: ...450 LXi Owner Manual Rev C NOTES...
Page 129: ......
Page 165: ...450 LXi Owner Manual Rev C NOTES...
Page 171: ...4 14 Appliances 450 LXi Owner Manual 4 14 6 Rev C 4 14 5 Touch Control Panel...
Page 188: ...450 LXi Owner Manual 4 14 Appliances Rev C 4 14 23 4 14 13 Auto Touch Guide...
Page 207: ...450 LXi Owner Manual Rev C NOTES...
Page 219: ...4 16 Audio Video Components 450 LXi Owner Manual 4 16 12 Rev C...
Page 221: ...4 16 Audio Video Components 450 LXi Owner Manual 4 16 14 Rev C...
Page 244: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 37...
Page 248: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 41...
Page 250: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 43 4 16 3 5 Basic Controls...
Page 253: ...4 16 Audio Video Components 450 LXi Owner Manual 4 16 46 Rev C...
Page 267: ...4 16 Audio Video Components 450 LXi Owner Manual 4 16 60 Rev C 4 16 4 12 Location of Controls...
Page 268: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 61...
Page 314: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 107 Other Audio Visual Equipment...
Page 320: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 113...
Page 369: ...450 LXi Owner Manual Rev C NOTES...
Page 373: ...4 17 Electronic Step 450 LXi Owner Manual 4 17 4 Rev C NOTES...
Page 375: ...450 LXi Owner Manual Rev C NOTES...
Page 411: ...450 LXi Owner Manual Rev C NOTES...
Page 459: ...This Page Was Intentionally Left Blank...
Page 527: ...5 4 Generator Maintenance Service 450 LXi Owner Manual 5 4 24 Rev C NOTES...
Page 531: ...450 LXi Owner Manual Rev C NOTES...
Page 535: ...450 LXi Owner Manual Rev C NOTES...
Page 556: ...450 LXi Owner Manual 10 1 Where to Go for Service Rev C 10 1 9...
Page 557: ...450 LXi Owner Manual Rev C NOTES...