Electrical System | Kawasaki STX-15F guide

ELECTRICAL SYSTEM 14-13

Wiring Diagram

JT1500-A1

Image 339

Kawasaki STX-15F service manual Electrical System

Contents

JET SKI Watercraft Page Quick Reference Guide Page JET SKI Watercraft List of Abbreviations Fuel Information Emission Control InformationExhaust Emission Control System Foreword Page Page General Information Smart Learning Operation mode SLO JT1500-A2 model ∼ Auxiliary Cooling Kawasaki Diagnostic System KDS SoftwareAdjustments Before Servicing General Information Battery Ground Edges of PartsSolvent Storage of Removed Parts Cleaning Watercraft before DisassemblyArrangement and Cleaning of Removed Parts Replacement Parts Gasket, O-ring Assembly Order Tightening SequenceTightening Torque Force Oil Seal, Grease Seal Liquid Gasket, Locking AgentPress Ball Bearing Direction of Engine Rotation Circlips, Cotter PinsElectrical Wires Lubrication Model Identification General Specifications Items JT1500-A1 ∼ A2 Engine OilElectrical Equipment Units of Mass Units of Volume Units of PressureUnits of Force Units of Power Unit Conversion Table Prefixes for Units Units of LengthPage Periodic Maintenance Periodic Maintenance Chart Torque and Locking Agent Fastener Torque Remarks Kgf·m Ft·lb Fuel SystemEngine Lubrication System Fastener Torque Remarks Kgf·m Exhaust SystemEngine Top End Pump and Impeller Engine Removal/InstallationEngine Bottom End Cooling and Bilge Systems Electrical System Fastener Torque Remarks Kgf·m Ft·lbSteering Hull/Engine Hood Threads dia. mm Torque Kgf·m Ft·lb General Fasteners stainless bolt and nut Standard Service Limit Fuel System Specifications Special Tools and Sealant Periodic Maintenance Procedures Fuel System Air Filter Drain Caps Inspection and CleaningThrottle Control System Inspection Periodic Maintenance Procedures Air Filter Inspection and CleaningFuel Vent Check Valve Inspection Engine Oil Change Fuel Pump Screen CleaningEngine Lubrication System Throttle Shaft Spring Inspection Dry Oil Filter Replace Periodic Maintenance Procedures Engine Top End Air Suction Valve InspectionValve Clearance Inspection Periodic Maintenance Inlet Valve Clearance Adjustment Chart Exhaust Valve Clearance Adjustment Chart Coupling Damper Inspection Engine Bottom EndCooling and Bilge Systems Engine Mounting Bolts Inspection and Tightness Periodic Maintenance Bilge System Flushing Steering Cable/Shift Cable Inspection Periodic Maintenance Procedures Pump and ImpellerSteering Impeller Inspection Electrical System Battery Charging Condition InspectionBattery Terminals Inspection Hull/Engine Hood Lubrication Spark Plug Cleaning and Inspection Steering Cable Ball Joint a at Steering Shaft Lubricate the following with a penetrating rust inhibitor B Nuts, Bolts, and Fasteners Tightness Inspection Hose and Hose Connect InspectionNut, Bolt and Fastener to be checked JT1500-A2 ∼ Rubber Strap Inspection Page Fuel System DFI Fuel System DFI Fuel System Diagram Exploded View Fastener Torque Remarks Kgf·m Ft·lb Fuel System DFI Fastener Torque Remarks Kgf·m Fuel System DFI Fastener Torque Remarks Kgf·m Ft·lb Digital Fuel Injection System Standard Fuel System DFI Special Tools and Sealant DFI Parts Location Fuel System DFI Dummy DFI System Part Name Terminal Names Terminal Numbers of ECU Connectors DFI Servicing Precautions For JT1500-A2 ∼ Silicone Sealant Kawasaki Bond 56019-120 -Seals Connector User Mode Dealer ModeSelf-Diagnosis Self-diagnosis Outline JT1500-A1 Self-Diagnosis Service Code Character TablePossible Problems Fail-Safe Function Displayed on Self-Diagnosis Memory of Service Code Character Watercraft conditions when problem occurred Troubleshooting the DFI System Sample Diagnosis Sheet Troubleshooting the DFI System Throttle Sensor Removal/Adjustment Throttle Sensor Service Code/Character-11/tPS Input Voltage Inspection Be sure the battery is fully charged Input Voltage at ECU Standard 4.75 ∼ 5.25 V DC Output Voltage Inspection Resistance Inspection ECU Joint Connector E Throttle Sensor Inlet Air Pressure Sensor Service Code/Character-12/bOSt Inlet Air Pressure Sensor InstallationInlet Air Pressure Sensor Removal Input Voltage at Sensor Connector Standard 4.75 ∼ 5.25 V DC Joint Connector E Inlet Air Pressure Sensor Inlet Air Temperature Removal/Installation Inlet Air Temperature Sensor Service Code/Character-13/AIrt Sensor Resistance Inspection Fuel System DFI Water Temperature Sensor Removal/Installation Water Temperature Sensor Service Code/Character-14/AqUt Output Voltage at ECU Standard about 3 ∼ 4 V at 20C 68F ECU Joint Connector E Water Temperature Sensor Crankshaft Sensor Service Code/Character-21/CrAg Crankshaft Sensor Removal/InstallationCrankshaft Sensor Inspection Camshaft Position Sensor Service Code/Character-23/CAAg Camshaft Position Sensor Removal/InstallationCamshaft Position Sensor Inspection Vehicle-down Sensor Service Code/Character-31/dOS Vehicle-down Sensor InstallationVehicle-down Sensor Removal Vehicle-down Sensor Inspection Fuel System DFI Fuel Injector Removal Fuel Injector Installation Audible Inspection Injector Signal Test Injector Unit Test Injector Resistance Inspection Injector Voltage Inspection Injector Fuel Line Inspection ECU Ignition Coil Removal/Installation Ignition Coils Service Code/Character-51, 52/COL1, COL2 Fuel System DFI Possible Causes Action Chapter Engine Overheating Service Code/Character-71/HEAt Low Engine Oil Pressure Service Code/Character-72/OILP Oil Temperature Sensor Removal/Installation Sensor Resistance Inspection JT1500-A2 model ∼ Engine Oil Overheating Service Code/Character-76/OILH ECU Installation ECU Power Supply InspectionECU Removal ECU connector B in this chapter figure ECU Power Source Circuit Main Fuse Inspection DFI Power SourceRelay Assembly Removal Relay Assembly Inspection Fuel Pump Relay Relay Coil Terminals 6 Relay Switch Terminals 5 Free Play Inspection Throttle Cable AdjustmentThrottle Case Removal/Disassembly Throttle Lever, Cable and Case Throttle Case Assembly/Installation Throttle Cable Removal Throttle Cable Installation Throttle Cable Inspection Throttle Case and Cable Lubrication Air Filter Installation Air FilterAir Filter Removal Air Filter Assembly Air Filter Disassembly Throttle Body Assy ISC Idle Speed Controller Inspection ISC Idle Speed Controller Removal/Installation ISC a ISC Resistance Inspection Inlet Manifold Removal Inlet Manifold Inlet Manifold Installation Fuel System DFI Fuel Pressure Inspection Fuel Line Fuel Flow Rate Inspection Amount of Fuel Flow Standard 67 mL or more for 3 seconds Fuel Vent Check Valve Mounting Fuel Vent Check Valve Fuel Filter Removal Fuel Filter Fuel Filter Installation Fuel Pump Fuel Pump RemovalJT1500-A2 ∼ model Power Source Voltage Inspection Fuel Pump Installation Operating Voltage Inspection Fuel Pump Relay Inspection Fuel Pump Relay Removal Fuel Tank Removal Fuel Tank Fuel Tank Cleaning Fuel Tank Installation Fuel Filler and Tube Removal Fuel Filler and Tube Installation Engine Lubrication System Exploded View Fastener Torque Remarks Kgf·m Ft·lb Engine Oil Flow Chart Passage Oil Pressure Measurement Special Tool and Sealant Engine Oil and Oil Filter Oil Level InspectionPreliminary Check Ordinary standard Check Oil Filter Replacement Oil Cooler Installation Oil CoolerOil Cooler Removal Oil Cooler Assembly Oil Cooler Disassembly Oil Cooler Inspection Oil Separator Tank Removal Breather Case InstallationBreather Case and Oil Separator Tank Breather Case Removal Blowby Gas System Inspection Oil Separator Tank Installation Oil Pan Installation Oil PanOil Pan Removal Oil Pump Sprocket Installation Oil Pump Sprocket, Oil Pump and Oil Pressure Relief ValveOil Pump Sprocket Removal Oil Pump Removal Oil Pump Installation Oil Screen Installation Oil Pump InspectionOil Screen Removal Oil Pump Sprocket Chain Removal Oil Pressure Relief Valve Inspection Oil Pressure Measurement Oil Pressure Measurement Engine Lubrication System Oil Pressure Switch Oil Pressure Switch RemovalOil Pressure Switch Installation Page Exhaust System Exploded View Fastener Torque Remarks Kgf·m Exhaust Manifold Removal Exhaust Manifold Exhaust Manifold Installation Exhaust Manifold Cleaning and Inspection Exhaust Pipe Installation Exhaust PipeExhaust Pipe Removal Exhaust Pipe Cleaning and Inspection Water Box Muffler Installation Water Box MufflerWater Box Muffler Removal Water Box Muffler Inspection Engine Top End Exploded View Fastener Engine TOP END Engine TOP END Fastener Torque Remarks Kgf·m Standard Service Limit Camshafts Cylinder HeadValves Cylinder, Piston Standard Service Limit Special Tools and Sealant Engine TOP END Engine TOP END Air Suction Valve Removal Clean Air SystemAir Suction Valve Installation Clean Air System Hose Inspection Cylinder Head Cover Installation Cylinder Head CoverCylinder Head Cover Removal Camshaft Chain Tensioner Installation Camshaft Chain TensionerCamshaft Chain Tensioner Removal Camshaft Removal Camshaft, Camshaft Chain Camshaft Installation Piston TDC Finding Special Tool TDC Measurement Tool Camshaft Runout Camshaft, Camshaft Cap Wear Camshaft Chain Removal Cylinder Compression Measurement Cylinder Head Cylinder Head Removal Cylinder Head Installation Cylinder Head Warp Valve Removal Valve InstallationValves Valve Clearance Check Valve-to-Guide Clearance Measurement Wobble Method Valve Guide Installation Valve Seat Repair Valve Seat Inspection Operating Procedures Seat Cutter Operation CareMarks Stamped on the Cutter Engine TOP END Engine TOP END Engine TOP END Cylinder, Pistons Cylinder RemovalPiston Removal Oil ring rails have no top or bottom Piston/Cylinder Installation With the Special Tools With the Hand Piston Ring Groove Width Cylinder WearPiston Wear Piston Ring, Piston Ring Groove Wear Piston Ring End Gap Piston Ring ThicknessPage Engine Removal/Installation Exploded View Fastener Torque Remarks Kgf·m Engine Removal Engine Removal/Installation Engine Damper Removal Engine Installation Engine Damper Installation Engine Bottom End Exploded View Fastener Torque Remarks Kgf·m Connecting Rod Big End Bearing Insert Selection Standard Service Limit Crankshaft, Connecting Rods Crankshaft Main Journal Diameter 40.984 ∼ 41.000 mm 40.96 mm Special Tools and Sealant Kawasaki Bond Liquid Gasket Black Coupling/Output Shaft Removal Coupling Coupling/Output Shaft Installation Output Cover Oil Seal Replacement Ball Bearing Inspection Magneto Cover Bearing ReplacementOil Seal Inspection Ball Bearing Lubrication Magneto Flywheel Installation Magneto FlywheelMagneto Flywheel Removal InstallMagneto Cover see Coupling/Output Shaft Installation Stator Installation StatorStator Removal Crankcase Splitting Crankcase Splitting Crankcase Assembly Following the sequence numbers, tighten the M8 bolts Crankshaft and Connecting Rods Crankshaft InstallationCrankshaft Removal Connecting Rod Installation Connecting Rod Removal Engine Bottom END Be careful not to overtighten the nuts Connecting Rod Bend Connecting Rod Twist Connecting Rod Big End Side ClearanceConnecting Rod Big End Bearing Insert/Crankpin Wear 92139-3709 Crankshaft Main Bearing Insert/Journal Wear Marking Position Crankshaft Crankshaft Side ClearanceCrankshaft Runout Measure the crankshaft runout Cooling and Bilge Systems Exploded View Fastener Torque Remarks Kgf·m Breather Removal Breather InstallationBreather Cleaning and Inspection Bilge System Filter Cleaning and Inspection Filter Installation Hose Inspection Hose InstallationCooling and Bilge System Hoses Hose Removal Cooling and Bilge System Flushing Cooling and Bilge System Flow Diagram Cooling and Bilge Systems Water Pipe Installation Water PipeWater Pipe Removal After Submerging Summary Procedures after Submerging Cooling and Bilge Systems Detailed Procedures after Submerging Cooling and Bilge Systems Cooling and Bilge Systems Page Drive System Exploded View Fastener Torque Remarks Kgf·m Standard Service Limit Drive Shaft Specification Drive System Drive Shaft Removal/Installation Drive Shaft Holder Removal/DisassemblyDrive Shaft/Drive Shaft Holder Drive Shaft Holder Assembly/Installation Drive Shaft Runout Pump and Impeller Exploded View Fastener Torque Remarks Kgf·m Standard Service Limit Jet Pump Pump and Impeller Pump Removal Pump Installation Torque Pump Mounting Bolts 36 N·m 3.7 kgf·m, 27 ft·lb Pump Disassembly Special Tool Oil Seal & Bearing Remover 57001-1058 a JT1500-A1,A2 ∼ Pump Assembly Special Tool Bearing Driver Set Pump and Impeller JT1500-A1, A2 ∼ Impeller Clearance Water Filter Cover Removal/InstallationImpeller Outside Diameter Measurement Pump InspectionPage Steering Exploded View 36 ∼ Special Tool and Sealant Steering Cable Adjustment Steering CableSteering Cable Removal Special Tool Box Wrench Steering Cable Installation Steering Cable InspectionSteering Cable Lubrication Handlebar Removal Handlebar Handlebar Installation Steering Steering Removal Steering Steering Steering Installation Torque the steering shaft locknut a Steering Shift Cable Adjustment Reverse SystemShift Cable Removal Steering Shift Cable Installation Shift Cable InspectionShift Cable Lubrication Shift Lever Shaft Removal/Installation Reverse Bucket Removal/Installation Hull/Engine Hood Exploded View Fastener Torque Remarks Kgf·m HULL/ENGINE Hood HULL/ENGINE Hood Front Storage Compartment Cover Removal Seat InstallationFittings Seat Removal Front Storage Compartment Cover Disassembly Front Storage Compartment Cover Assembly Mirror Installation Mirror RemovalMirror Stay Removal Mirror Stay Installation Crossmember Removal Front Storage Pocket InstallationStorage Pocket Disassembly/Assembly Front Storage Pocket Removal Crossmember Installation Exhaust Outlet Installation Handrail InstallationDrain Plug Housing Removal Drain Plug Housing Installation Reboarding Step Removal Stabilizer InstallationReboarding Step Installation Stabilizer Removal Hull Replacement Rubber Parts Location Rubber Parts HULL/ENGINE Hood Rivet Removal Rivet InstallationFront Bumper Installation Rear Bumper Installation Side Bumper Removal Side Bumper InstallationPage Electrical System Electrical System Parts Location Electrical System Electrical System Exploded View 30 ∼ 40 in·lb Starter Cable Mounting Nuts Electrical System Fastener Torque Remarks Kgf·m Electrical System Electrical System Wiring Diagram Electrical System JT1500-A2 ∼ Electrical System Ignition System Standard Service Limit BatteryElectric Starter System Charging System Electrical System Precautions Electrical Connectors Female Connectors a Male Connectors B Wiring Inspection Electrical Wiring Electrolyte Filling BatteryInstallation Removal Electrical System Initial Charge Precautions Interchange Charging Condition InspectionRefreshing Charge Electrical System Starter Relay Inspection Starter Relay InstallationElectric Starter System Starter Relay Removal Starter Motor Removal Starter Motor Installation Starter Motor Assembly Starter Motor Disassembly Brush Inspection Commutator Cleaning and Inspection Armature Inspection Brush Lead InspectionBrush Plate and Terminal Bolt Inspection Reduction Gear Inspection Reduction Gear Removal/Installation Electrical System Regulator/Rectifier Removal/Installation Charging SystemMagneto Output Voltage Regulator Inspection Regulator/Rectifier Inspection Charging System Circuit Electrical System Crankshaft Sensor Installation Ignition SystemCrankshaft Sensor Removal Timing Rotor Removal Timing Rotor Installation Ignition Coil Removal Ignition Coil Installation Ignition Coil Inspection Measuring arcing distanceMeasuring coil resistance Camshaft Position Sensor Installation Camshaft Position Sensor RemovalMeasuring spark plug lead resistance Igniter Inspection Igniter Removal/Installation Ignition Coil Primary Peak Voltage Standard 250 V or more Camshaft Position Sensor Peak Voltage Inspection Crankshaft Sensor Peak Voltage Check Spark Plug Removal Spark Plug InstallationSpark Plug Adjustment Spark Plug Cleaning Ignition System Circuit Electrical System Steering Position Sensor and Magnet Installation Kawasaki Smart Steering SystemSteering Position Sensor and Magnet Removal Steering Position Sensor Clearance Inspection of Kawasaki Smart Steering System Steering Position Sensor Input Voltage Inspection Steering Position Sensor Output Voltage Inspection Steering Position Sensor Circuit Speed Sensor Removal/Installation SensorsSpeed Sensor Inspection Fuel Level Sensor Inspection Throttle Sensor Removal/Installation Throttle Sensor Inspection Water Temperature Sensor InspectionInlet Air Temperature Sensor Inspection Oil Temperature Sensor Inspection Display Function Inspection Multifunction Meter MODE/SET Button Inspection Speedometer Inspection Speed Sensor Electric Source Inspection Tachometer Inspection Battery Symbol/bAt Characters/LED Inspection Buzzer Inspection Electrical System Circuit Inspection Relay Assembly Relay Assembly Circuit Inspection with the battery connected Switch Inspection Switches Fuse Page Storage Engine Oil Preparation for StorageCooling System Bilge System Engine Engine Mounting Bolts BatteryDo not allow any soda solution to enter the battery Air Filter General General Inspection Removal from Storage Test Run Page Appendix Cable, Wire and Hose Routing Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Appendix Troubleshooting Guide Engine Doesn’t Start, Starting DifficultyPoor Running at Low Speed Poor Running or No Power at High Speed Oil Pressure Warning Light Goes On OverheatingOver Cooling Abnormal Engine Noise Runs Properly Engine Activates Slow Down ModeBattery Trouble Poor Performance through Engine Model Application