Electrical System - Yamaha YZFR1Y(C) 2009 Service Manual

ELECTRICAL SYSTEM

IGNITION SYSTEM.......................................................................................8-1
CIRCUIT DIAGRAM................................................................................8-1
ENGINE STOPPING DUE TO SIDESTAND OPERATION .....................8-3
TROUBLESHOOTING ............................................................................8-5
ELECTRIC STARTING SYSTEM..................................................................8-7
CIRCUIT DIAGRAM................................................................................8-7
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION.........................8-9
TROUBLESHOOTING ..........................................................................8-11
CHARGING SYSTEM .................................................................................8-13
CIRCUIT DIAGRAM..............................................................................8-13
TROUBLESHOOTING ..........................................................................8-15
LIGHTING SYSTEM ...................................................................................8-17
CIRCUIT DIAGRAM..............................................................................8-17
TROUBLESHOOTING ..........................................................................8-19
SIGNALING SYSTEM.................................................................................8-21
CIRCUIT DIAGRAM..............................................................................8-21
TROUBLESHOOTING ..........................................................................8-23
COOLING SYSTEM....................................................................................8-29
CIRCUIT DIAGRAM..............................................................................8-29
TROUBLESHOOTING ..........................................................................8-31
FUEL INJECTION SYSTEM .......................................................................8-33
CIRCUIT DIAGRAM..............................................................................8-33
ECU SELF-DIAGNOSTIC FUNCTION .................................................8-35
TROUBLESHOOTING METHOD .........................................................8-37
DIAGNOSTIC MODE............................................................................8-38
TROUBLESHOOTING DETAILS ..........................................................8-44
FUEL PUMP SYSTEM................................................................................8-97
CIRCUIT DIAGRAM..............................................................................8-97
TROUBLESHOOTING ..........................................................................8-99
ELECTRICAL COMPONENTS.................................................................8-101
CHECKING THE SWITCHES.............................................................8-105
CHECKING THE BULBS AND BULB SOCKETS...............................8-108
CHECKING THE FUSES....................................................................8-109
CHECKING AND CHARGING THE BATTERY...................................8-109
CHECKING THE RELAYS..................................................................8-113
CHECKING THE TURN SIGNAL RELAY ...........................................8-114
CHECKING THE RELAY UNIT (DIODE) ............................................8-115
CHECKING THE IGNITION COILS ....................................................8-116
8