Engine Control System - Suzuki DF 40 Service Manual

ENGINE CONTROL SYSTEM
ENGINE CONTROL SYSTEM STRUCTURE ____________________
SYSTEM STRUCTURE 1 ................................................................................ 3-1
SYSTEM STRUCTURE 2 ................................................................................ 3-2
WIRING DIAGRAM FOR ENGINE CONTROL ............................................... 3-3
COMPONENTS FOR SYSTEM CONTROL ______________________
ENGINE CONTROL MODULE (ECM) ............................................................ 3-4
ECM CONNECTORS / TERMINALS LAYOUT ............................................... 3-5
ECM INTERNAL STRUCTURE ....................................................................... 3-6
SENSOR AND SWITCH .................................................................................. 3-7
IGNITION SYSTEM ________________________________________
IGNITION CONTROL SYSTEM ...................................................................... 3-11
ELECTRONIC FUEL INJECTION SYSTEM _____________________
FUEL INJECTION CONTROL SYSTEM......................................................... 3-13
FUEL DELIVERY SYSTEM COMPONENTS .................................................. 3-15
FUEL PUMP CONTROL SYSTEM.................................................................. 3-18
AIR INTAKE COMPONENTS .......................................................................... 3-19
IDLE AIR CONTROL SYSTEM OUTLINE ...................................................... 3-20
CAUTION SYSTEM ________________________________________
OVER-REVOLUTION CAUTION SYSTEM ..................................................... 3-22
LOW OIL PRESSURE CAUTION SYSTEM .................................................... 3-23
OVERHEAT CAUTION ..................................................................................... 3-24
LOW BATTERY VOLTAGE CAUTION SYSTEM ............................................. 3-25
SELF-DIAGNOSTIC SYSTEM ________________________________
PRIORITY / CODE / PATTERN FOR SELF-DIAGNOSTIC
SYSTEM OPERATION .................................................................................... 3-26
CONDITION FOR SELF-DIAGNOSTIC SYSTEM OPERATION.................... 3-28
FAIL-SAFE SYSTEM _______________________________________
PRE-PROGRAMMED VALUE FOR FAIL-SAFE SYSTEM ............................ 3-29
OPERATING HOUR INDICATION SYSTEM _____________________
START-IN-GEAR PROTECTION SYSTEM ______________________
O FEEDBACK SYSTEM_____________________________________
2
INSPECTION _____________________________________________
PRECAUTION ON SYSTEM INSPECTION .................................................... 3-33
INSPECTION FOR ECM CIRCUIT VOLTAGE ................................................ 3-33
INSPECTION FOR RESISTANCE .................................................................. 3-35
OTHER INSPECTION ...................................................................................... 3-36
TROUBLESHOOTING ______________________________________
REMOVAL / INSTALLATION _________________________________
FLYWHEEL / CKP SENSOR / CMP SENSOR ............................................... 3-47
OIL PRESSURE SWITCH ............................................................................... 3-50
CONTENTS
3-1
3
3-4
3-11
3-13
3-22
3-26
3-29
3-30
3-31
3-32
3-33
3-41
3-47