Electrical System - Yamaha SR400 2014 Service Manual

ELECTRICAL SYSTEM

IGNITION SYSTEM ..........................................................................................7-1
CIRCUIT DIAGRAM ...................................................................................7-1
ENGINE STOPPING DUE TO SIDESTAND OPERATION........................7-3
TROUBLESHOOTING ...............................................................................7-5
CHARGING SYSTEM.......................................................................................7-7
CIRCUIT DIAGRAM ...................................................................................7-7
TROUBLESHOOTING ...............................................................................7-9
LIGHTING SYSTEM .......................................................................................7-11
CIRCUIT DIAGRAM .................................................................................7-11
TROUBLESHOOTING .............................................................................7-13
SIGNALING SYSTEM ....................................................................................7-15
CIRCUIT DIAGRAM .................................................................................7-15
TROUBLESHOOTING .............................................................................7-17
FUEL INJECTION SYSTEM...........................................................................7-21
CIRCUIT DIAGRAM .................................................................................7-21
ECU SELF-DIAGNOSTIC FUNCTION.....................................................7-23
TROUBLESHOOTING METHOD.............................................................7-25
DIAGNOSTIC MODE ...............................................................................7-25
TROUBLESHOOTING DETAILS .............................................................7-28
DIAGNOSTIC CODE TABLE ...................................................................7-42
FUEL PUMP SYSTEM....................................................................................7-47
CIRCUIT DIAGRAM .................................................................................7-47
TROUBLESHOOTING .............................................................................7-49
ELECTRICAL COMPONENTS.......................................................................7-51
CHECKING THE SWITCHES ..................................................................7-55
CHECKING THE BULBS AND BULB SOCKETS ....................................7-58
CHECKING THE FUSES .........................................................................7-59
CHECKING AND CHARGING THE BATTERY........................................7-60
CHECKING THE RELAYS .......................................................................7-63
CHECKING THE TURN SIGNAL/HAZARD RELAY.................................7-63
CHECKING THE DIODE ..........................................................................7-64
CHECKING THE SPARK PLUG CAP ......................................................7-65
CHECKING THE IGNITION COIL ............................................................7-65
CHECKING THE IGNITION SPARK GAP................................................7-66
CHECKING THE CRANKSHAFT POSITION SENSOR...........................7-67
CHECKING THE LEAN ANGLE SENSOR...............................................7-67
CHECKING THE STATOR COIL .............................................................7-68
CHECKING THE RECTIFIER/REGULATOR ...........................................7-68
CHECKING THE HORN...........................................................................7-68
CHECKING THE ENGINE TEMPERATURE SENSOR ...........................7-69
CHECKING THE FUEL SENDER ............................................................7-69
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