Yamaha 2009 YZF-R1 (Y) Service Manual page 435

Diag-
nostic
code
No.
D:51 Radiator fan motor relay
D:52 Headlight relay
Item
Actuates the radiator fan
motor relay for five cycles of
five seconds. (ON 2 sec-
onds, OFF 3 seconds)
Illuminates the engine trou-
ble warning light.
Actuates the headlight relay
for five cycles of five seconds.
(ON 2 seconds, OFF 3 sec-
onds)
Illuminates the engine trou-
ble warning light.
FUEL INJECTION SYSTEM
Actuation
8-44
Checking method
Check the operating sound
of the radiator fan motor
relay five times.
Check the operating sound
of the headlight relay five
times.