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Pub.No.00EMB0009, APRIL 2014 
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Pub.No.00EMB0009, APRIL 2014 
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Pub.No.00EMB0009, APRIL 2014 
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GROUP INDEX 
FOREWORD 
This Shop Manual is published for the information and 
guidance of personnel responsible for maintenance of 
Mitsubishi Fuso BM series buses, and includes proce- 
dures for adjustment and maintenance services. 
We earnestly look forward to seeing that this manual is 
made full use of in order to perform correct services with 
no wastage. 
For more details, please consult your nearest authorized 
Mitsubishi Fuso dealer or distributors. 
Kindly note that the specifications and maintenance ser- 
vice figures are subject to change without prior notice in 
line with improvement which will be effected from time to 
time in the future. 
APRIL 2014 
Applicable models 
BM 
©2014 Mitsubishi Fuso Truck & Bus Corporation Printed in Japan 
GENERAL ................................................ 
SPECIFICATIONS .................................... 
STRUCTURE AND OPERATION............. 
TROUBLESHOOTING ............................. 
POWER, CHARGE AND GROUND 
CIRCUIT ................................................... 
ENGINE STARTING CIRCUIT ................. 
LIGHTING CIRCUIT ................................. 
METER CIRCUIT...................................... 
INDICATOR AND WARNING 
LAMP CIRCUIT ........................................ 
BODY SIDE ELECTRICAL CIRCUIT....... 
CHASSIS SIDE ELECTRICAL 
CIRCUIT ................................................... 
ELECTRICAL EQUIPMENT 
INSTALLATION POSITIONS ................... 
INSPECTION OF ELECTRICAL 
EQUIPMENT ............................................ 
STARTER AND ALTERNATOR ............... 
ON-VEHICLE INSPECTION AND 
ADJUSTMENT ......................................... 
CONNECTOR CONFIGURATION 
CHART ..................................................... 
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This Shop Manual contains the information classified into the following groups. 
1. ENGINE volume (Pub.No.00EMB0007) 
2. CHASSIS volume (Pub.No.00EMB0008) 
3. ELECTRICAL volume (Pub.No.00EMB0009) 
Group No. 
Group subject 
00 
GENERAL 
11 
ENGINE 
12 
LUBRICATION 
13 
FUEL AND ENGINE CONTROL 
14 
COOLING 
15 
INTAKE AND EXHAUST 
Group No. 
Group subject 
00 
GENERAL 
21 
CLUTCH 
22 
MANUAL TRANSMISSION 
25 
PROPELLER SHAFT 
26 
FRONT AXLE 
27 
REAR AXLE 
31 
WHEEL, TIRE 
33 
FRONT SUSPENSION 
34 
REAR SUSPENSION 
35 
BRAKE 
36 
PARKING BRAKE 
37 
STEERING 
41 
FRAME 
Group No. 
Group subject 
54 
ELECTRICAL 
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CONTENTS 
54-00A GENERAL 
VEHICLE MODEL CODING 
SYSTEM ................................................ 54-00A-2 
EQUIPMENT TYPE CODING 
SYSTEM ................................................ 54-00A-3 
POWER TRAIN TABLE ........................ 54-00A-4 
HOW TO READ THIS MANUAL ........... 54-00A-6 
1. Illustrated Parts Breakdown and Service 
Procedures ...................................... 54-00A-8 
2. How to Read Circuits....................... 54-00A-10 
CHASSIS NUMBER, ENGINE NUMBER AND 
NAME PLATE ..................................... 54-00A-13 
PRECAUTIONS FOR MAINTENANCE 
OPERATION ....................................... 54-00A-14 
1. Handling Precautions for Electric 
Circuits ......................................... 54-00A-18 
2. Service Precautions for Alternators ... 54-00A-20 
3. Intermittent Faults........................... 54-00A-22 
4. Precautions for Arc Welding............. 54-00A-23 
JACKING UP THE VEHICLE.............. 54-00A-24 
TABLE OF STANDARD TIGHTENING 
TORQUES ........................................... 54-00A-26 
1. Tightening Torques ......................... 54-00A-26 
2. Table of Standard Tightening 
Torque .......................................... 54-00A-26 
54-00B SPECIFICATIONS 
SPECIFICATIONS ................................ 54-00B-2 
54-00C STRUCTURE AND 
OPERATION 
1. Starter ............................................. 54-00C-2 
2. Alternator ........................................ 54-00C-4 
3. Lighting........................................... 54-00C-5 
54-00D TROUBLESHOOTING 
TROUBLESHOOTING .......................... 54-00D-2 
54-01 POWER, CHARGE AND 
GROUND CIRCUIT 
HIGH-CURRENT FUSE BOX .................. 54-01-2 
RELAY AND FUSE BOX ......................... 54-01-3 
POWER CIRCUIT........................... 54-01-4 
RESERVE POWER CIRCUIT ........ 54-01-9 
BATTERY CHARGING 
CIRCUIT........................................ 54-01-10 
GROUND ...................................... 54-01-11 
54-02 ENGINE STARTING 
CIRCUIT 
ENGINE STARTING CIRCUIT ....... 54-02-2 
54-03 LIGHTING CIRCUIT 
HEADLAMP CIRCUIT .................... 54-03-2 
FOG LAMP CIRCUIT ..................... 54-03-3 
TAIL LAMP, CLEARANCE LAMP 
AND LICENSE PLATE LAMP 
CIRCUIT.......................................... 54-03-4 
STOP LAMP CIRCUIT ................... 54-03-5 
TURN-SIGNAL AND HAZARD 
LAMP CIRCUIT .............................. 54-03-6 
BACKUP LAMP CIRCUIT.............. 54-03-7 
ILLUMINATION LAMP CIRCUIT ... 54-03-8 
110 
115 
125 
130 
210 
310 
315 
320 
325 
330 
340 
348 
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54-04 METER CIRCUIT 
METER CLUSTER INTERNAL 
CIRCUIT.......................................... 54-04-2 
SPEEDOMETER CIRCUIT ............. 54-04-3 
FUEL GAUGE CIRCUIT ................. 54-04-4 
WATER TEMPERATURE 
CIRCUIT.......................................... 54-04-5 
OIL PRESSURE GAUGE 
CIRCUIT.......................................... 54-04-6 
VOLTMETER CIRCUIT .................. 54-04-7 
54-05 INDICATOR AND 
WARNING LAMP 
CIRCUIT 
PARKING BRAKE CIRCUIT .......... 54-05-2 
BRAKE WARNING CIRCUIT ......... 54-05-3 
WATER LEVEL AND OVERHEATING 
WARNING CIRCUIT ....................... 54-05-4 
ENGINE OIL PRESSURE WARNING 
CIRCUIT.......................................... 54-05-5 
ENGINE OIL FILTER WARNING 
CIRCUIT.......................................... 54-05-6 
54-06 BODY SIDE 
ELECTRICAL CIRCUIT 
WIPER AND WASHER CIRCUIT ... 54-06-2 
HORN CIRCUIT.............................. 54-06-3 
54-07 CHASSIS SIDE 
ELECTRICAL CIRCUIT 
EXHAUST BRAKE CIRCUIT ......... 54-07-2 
54-10 ELECTRICAL 
EQUIPMENT 
INSTALLATION 
POSITIONS 
Body side 
SWITCH.............................................. 54-10-2 
RELAY AND FUSE ............................ 54-10-3 
METER AND BUZZER....................... 54-10-4 
JOINTS OF MAIN HARNESS 
CONNECTORS .................................. 54-10-5 
OTHERS............................................. 54-10-6 
Engine and Transmission 
ENGINE .............................................. 54-10-7 
TRANSMISSION ................................ 54-10-8 
Chassis side 
SWITCH AND SENSOR..................... 54-10-9 
BATTERY AND FUSE ..................... 54-10-10 
MAGNETIC VALVE.......................... 54-10-11 
BUZZER AND LAMP ....................... 54-10-12 
54-11 INSPECTION OF 
ELECTRICAL 
EQUIPMENT 
#001 to #179 SWITCH ............................. 54-11-2 
#180 to #249 RELAY ............................... 54-11-5 
#250 to #349 SENSOR ............................ 54-11-6 
#350 to #409 CONTROL UNIT ................ 54-11-8 
#410 to #509 MOTOR.............................. 54-11-8 
#560 to #609 MAGNETIC VALVE ........... 54-11-9 
#610 to #649 BUZZER, HORN ................ 54-11-9 
#860 BATTERY ..................................... 54-11-11 
#890 METER .......................................... 54-11-14 
401 
412 
420 
425 
430 
435 
510 
515 
530 
536 
538 
614 
616 
710 
A 
B 
C 
J 
P 
R 
S 
T 
U 
V 
W 
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54-12 STARTER AND 
ALTERNATOR 
#930 STARTER........................................ 54-12-2 
#940 ALTERNATOR .............................. 54-12-16 
54-13 ON-VEHICLE 
INSPECTION AND 
ADJUSTMENT 
#950 INSPECTION OF ALTERNATOR ... 54-13-2 
#951 INSPECTION OF REGULATOR..... 54-13-3 
54-14 CONNECTOR 
CONFIGURATION 
CHART 
CONNECTOR CONFIGURATION 
CHART ..................................................... 54-14-2 
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