Engine General Information And Diagnosis; Emission Control Devices; Engine Electrical Devices - Suzuki kq750 Service Manual

Precautions .................................................1-1
Precautions............................................................. 1-1
Precautions for Engine.......................................... 1-1
Engine General Information and
Diagnosis ................................................. 1A-1
General Description .............................................1A-1
Injection Timing Description ................................ 1A-1
Schematic and Routing Diagram........................1A-4
FI System Wiring Diagram .................................. 1A-4
Terminal Alignment of ECM Coupler................... 1A-5
Component Location ...........................................1A-6
FI System Parts Location .................................... 1A-6
Diagnostic Information and Procedures............1A-8
Engine Symptom Diagnosis ................................ 1A-8
Self-Diagnostic Procedures .............................. 1A-11
Use of SDS Diagnosis Reset Procedures......... 1A-13
Show Data When Trouble (Displaying Data at
the Time of DTC) ............................................ 1A-14
SDS Check ....................................................... 1A-15
DTC Table......................................................... 1A-19
Fail-Safe Function Table ................................... 1A-19
FI System Troubleshooting ............................... 1A-20
Malfunction Code and Defective Condition
Table ............................................................... 1A-22
DTC "C12" (P0335): CKP Sensor Circuit
Malfunction...................................................... 1A-24
DTC "C13" (P0105-H/L): IAP Sensor Circuit
Malfunction...................................................... 1A-27
DTC "C14" (P0120-H/L): TP Sensor Circuit
Malfunction...................................................... 1A-34
DTC "C15" (P0115-H/L): ECT Sensor Circuit
Malfunction...................................................... 1A-41
DTC "C20" (P1752): Diff-lock Relay Circuit
Malfunction...................................................... 1A-47
DTC "C21" (P0110-H/L): IAT Sensor Circuit
Malfunction...................................................... 1A-49
DTC "C23" (P1651-H/L): TO Sensor Circuit
Malfunction...................................................... 1A-53
DTC "C24" (P0351): Ignition Coil Circuit
Malfunction...................................................... 1A-59
DTC "C32" (P0201): Fuel Injector Circuit
Malfunction...................................................... 1A-59
Section 1
Engine
CONTENTS
DTC "C40" (P05057): ISC Valve Circuit
Malfunction......................................................1A-62
DTC "C41" (P230-H/L): FP Relay Circuit
Malfunction......................................................1A-67
Specifications .....................................................1A-69
Service Data......................................................1A-69
Special Tools and Equipment ...........................1A-70
Special Tool ......................................................1A-70
Emission Control Devices ...................... 1B-1
Precautions...........................................................1B-1
Precautions for Emission Control Devices ..........1B-1
Repair Instructions ..............................................1B-1
Crankcase Breather (PCV) Hose Inspection.......1B-1
Crankcase Breather (PCV) Hose Removal
and Installation ..................................................1B-1
Engine Electrical Devices ....................... 1C-1
Precautions...........................................................1C-1
Precautions for Engine Electrical Device ............1C-1
Component Location ...........................................1C-1
Engine Electrical Components Location .............1C-1
Diagnostic Information and Procedures ............1C-1
Engine Symptom Diagnosis ................................1C-1
Repair Instructions ..............................................1C-1
ECM Removal and Installation............................1C-1
CKP Sensor Inspection .......................................1C-1
CKP Sensor Removal and Installation ................1C-1
IAP Sensor Inspection.........................................1C-1
IAP Sensor Removal and Installation..................1C-2
TP Sensor Inspection..........................................1C-2
TP Sensor Removal and Installation...................1C-2
TP Sensor Adjustment ........................................1C-3
IAT Sensor Inspection.........................................1C-3
IAT Sensor Removal and Installation..................1C-3
ECT Sensor Removal and Installation ................1C-4
ECT Sensor Inspection .......................................1C-4
TO Sensor Inspection .........................................1C-5
TO Sensor Removal and Installation ..................1C-5
ISC Valve Inspection...........................................1C-5
ISC Valve Removal and Installation....................1C-5
GP Switch Inspection ..........................................1C-6
GP Switch Removal and Installation ...................1C-6
Specifications .......................................................1C-6
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