Suzuki TU250X Service Manual page 122

FI SYSTEM DIAGNOSIS
PRECAUTIONS IN SERVICING .................................................................. 4- 3
ELECTRICAL PARTS ........................................................................... 4- 3
FUSE...................................................................................................... 4- 4
SWITCH ................................................................................................. 4- 4
ECM/VARIOUS SENSORS ................................................................... 4- 4
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............................................................ 4-13
ECM TERMINAL .......................................................................................... 4-14
SELF-DIAGNOSIS FUNCTION.................................................................... 4-15
USER MODE ......................................................................................... 4-15
DEALER MODE..................................................................................... 4-16
FAIL-SAFE FUNCTION......................................................................... 4-17
FI SYSTEM TROUBLESHOOTING....................................................... 4-18
SELF-DIAGNOSTIC PROCEDURES.................................................... 4-20
USE OF SDS DIAGNOSTIC PROCEDURES ....................................... 4-23
USE OF SDS DIAGNOSIS RESET PROCEDURE ............................... 4-24
SHOW DATA WHEN TROUBLE
(DISPLAING DATA AT THE TIME OF DTC) ........................................ 4-25
MALFUNCTION CODE AND DEFECTIVE CONDITION ...................... 4-26
"12" (P0335) CKP SENSOR CIRCUIT MALFUNCTION ...................... 4-29
"13" (P0105-H/L) IAP SENSOR CIRCUIT MALFUNCTION................. 4-31
"14" (P0120-H/L) TP SENSOR CIRCUIT MALFUNCTION .................. 4-36
"15" (P0115-H/L) ET SENSOR CIRCUIT MALFUNCTION .................. 4-41
"21" (P0110-H/L) IAT SENSOR CIRCUIT MALFUNCTION................. 4-45
"23" (P1651-H/L) TO SENSOR CIRCUIT MALFUNCTION.................. 4-49
"24" (P0351) IGNITION SYSTEM MALFUNCTION.............................. 4-52
"28" (P1655) STV ACTUATOR CIRCUIT MALFUNCTION.................. 4-53
"29" (P1654-H/L) STP SENSOR CIRCUIT MALFUNCTION................ 4-56
"32" (P0201) FUEL INJECTOR CIRCUIT MALFUNCTION ................. 4-60
"41" (P0230-H/L) FP CIRCUIT MALFUNCTION .................................. 4-62
"42" (P01650) IG SWITCH CIRCUIT MALFUNCTION......................... 4-63
"44" (P0130) HO2 SENSOR (HO2S) CIRCUIT MALFUNCTION ......... 4-64
"49" (P1656) PAIR CONTROL SOLENOID VALVE
CIRCUIT MALFUNCTION ..................................................................... 4-66
CONTENTS
FI SYSTEM DIAGNOSIS 4-1
4