Suzuki TU250X User Manual

FI SYSTEM DIAGNOSIS 4-1
4
CONTENTS
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

Suzuki TU250X Specifications

General

Displacement	249 cc
Bore x Stroke	72.0 mm x 61.2 mm
Compression Ratio	9.2:1
Ignition	Electronic ignition (transistorized)
Starter	Electric
Transmission	5-speed constant mesh
Final Drive	Chain
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Swingarm type, coil spring, oil damped
Rear Brakes	Drum brake
Front Tire	90/90-18 M/C 51S, tube type
Rear Tire	110/90-18 M/C 61S, tube type
Overall Length	2070 mm (81.5 in.)
Overall Width	750 mm (29.5 in.)
Overall Height	1075 mm (42.3 in.)
Seat Height	770 mm (30.3 in.)
Ground Clearance	165 mm (6.5 in.)
Wheelbase	1375 mm (54.1 in.)
Curb Weight	148 kg (326 lbs.)
Engine Type	4-stroke, single cylinder, SOHC
Front Brakes	Single disc
Fuel Capacity	12 L (3.2 US gal.)