Yamaha YZFR1W 2007 Service Manual page 363

Diag-
nostic
Item
code
No.
50 Fuel injection system relay
51 Radiator fan motor relay
52 Headlight relay
53 EXUP servo motor
EAS27461
TROUBLESHOOTING DETAILS
This section describes the measures per fault code number displayed on the meter. Check and ser-
vice the items or components that are the probable cause of the malfunction following the order
given.
After the check and service of the malfunctioning part has been completed, reset the meter display
according to the reinstatement method.
Fault code No.:
Code number displayed on the meter when the engine failed to work normally. Refer to "Self-Diag-
nostic Function table".
Diagnostic code No.:
Diagnostic code number to be used when the diagnostic mode is operated. Refer to "DIAGNOSTIC
MODE" on page 8-36.
FUEL INJECTION SYSTEM
Actuation
Actuates the fuel injection
system relay five times at
one-second intervals.
Illuminates the engine trou-
ble warning light.
(The engine trouble warning
light is OFF when the relay is
ON, and the engine trouble
warning light is ON when the
relay is OFF).
Actuates the radiator fan
motor relay five times at one
second intervals. (ON 2 sec-
onds, OFF 3 seconds)
Illuminates the engine trou-
ble warning light.
Actuates the headlight relay
five times at one-second
intervals. (ON 2 seconds,
OFF 3 seconds)
Illuminates the engine trou-
ble warning light.
Actuates the servo motor
(turns to open side and to
closed side).
Illuminates the engine trou-
ble warning light.
8-44
Checking method
Check the operating sound
of the fuel injection system
relay five times.
Check the operating sound
of the radiator fan motor
relay five times.
Check the operating sound
of the headlight relay five
times.
Check the operating sound.