Suzuki GW250 Service Manual page 142

FI SYSTEM DIAGNOSIS
PRECAUTIONS IN SERVICING .................................................................. 4- 3
ELECTRICAL PARTS ........................................................................... 4- 3
FUSE...................................................................................................... 4- 4
SWITCH ................................................................................................. 4- 4
ECM/VARIOUS SENSORS ................................................................... 4- 5
BATTERY .............................................................................................. 4- 5
ELECTRICAL CIRCUIT INSPECTION PROCEDURE.......................... 4- 6
USING THE MULTI CIRCUIT TESTER................................................. 4- 9
FI SYSTEM TECHNICAL FEATURES......................................................... 4-10
INJECTION TIME (INJECTION VOLUME) ........................................... 4-10
COMPENSATION OF INJECTION TIME (VOLUME) ........................... 4-11
INJECTION STOP CONTROL .............................................................. 4-11
FI SYSTEM PARTS LOCATION ........................................................... 4-12
FI SYSTEM WIRING DIAGRAM............................................................ 4-14
ECM TERMINAL .......................................................................................... 4-15
SELF-DIAGNOSIS FUNCTION.................................................................... 4-16
USER MODE ......................................................................................... 4-16
DEALER MODE..................................................................................... 4-17
TPS ADJUSTMENT............................................................................... 4-19
FAIL-SAFE FUNCTION ............................................................................... 4-20
FI SYSTEM TROUBLESHOOTING ............................................................. 4-21
CUSTOMER COMPLAINT ANALYSIS ................................................. 4-21
VISUAL INSPECTION ........................................................................... 4-22
SELF-DIAGNOSTIC PROCEDURES.................................................... 4-23
SELF-DIAGNOSIS RESET PROCEDURE............................................ 4-23
USE OF SDS DIAGNOSTIC PROCEDURES ....................................... 4-24
USE OF SDS DIAGNOSIS RESET PROCEDURE ............................... 4-25
SHOW FAILURE DATA
(DISPLAYING DATA AT THE TIME OF DTC)...................................... 4-26
MALFUNCTION CODE AND DEFECTIVE CONDITION ...................... 4-27
DTC "C12" (P0335): CKP SENSOR CIRCUIT MALFUNCTION .......... 4-30
DTC "C13" (P1750-H/L) or "C17" (P0105-H/L):
IAP SENSOR CIRCUIT MALFUNCTION .............................................. 4-34
DTC "C14" (P0120-H/L): TP SENSOR CIRCUIT MALFUNCTION ...... 4-38
DTC "C15" (P0115-H/L): ECT SENSOR CIRCUIT MALFUNCTION ... 4-42
DTC "C21" (P0110-H/L): IAT SENSOR CIRCUIT MALFUNCTION..... 4-46
DTC "C23" (P1651-H/L): TO SENSOR CIRCUIT MALFUNCTION ..... 4-50
DTC "C24" (P0351) or "C25" (P0352):
IGNITION SYSTEM MALFUNCTION .................................................... 4-53
DTC "C31" (P0705): GP SWITCH CIRCUIT MALFUNCTION ............. 4-54
DTC "C32" (P0201) or "C33" (P0202):
FUEL INJECTOR CIRCUIT MALFUNCTION........................................ 4-57
DTC "C40" (P0505): ISC VALVE CIRCUIT MALFUNCTION............... 4-60
CONTENTS
FI SYSTEM DIAGNOSIS 4-1
4