Yamaha 2009 YZF-R1 (Y) Service Manual page 434

Diag-
nostic
code
No.
D:40 Secondary injector #1
D:41 Secondary injector #2
D:42 Secondary injector #3
D:43 Secondary injector #4
D:47 Steering damper solenoid
D:48 Air induction system sole-
noid
D:50 Fuel pump relay
Item
Actuates the secondary injec-
tor #1 five times at one-sec-
ond intervals.
Illuminates the engine trou-
ble warning light.
Actuates the secondary injec-
tor #2 five times at one-sec-
ond intervals.
Illuminates the engine trou-
ble warning light.
Actuates the secondary injec-
tor #3 five times at one-sec-
ond intervals.
Illuminates the engine trou-
ble warning light.
Actuates the secondary injec-
tor #4 five times at one-sec-
ond intervals.
Illuminates the engine trou-
ble warning light.
Set the engine stop switch to
ON: Steering damper sole-
noid is ON.
Set the engine stop switch to
OFF: Steering damper sole-
noid is OFF.
Illuminates the engine trou-
ble warning light when the
engine stop switch is ON.
Actuates the air induction
system solenoid five times at
one-second intervals.
Illuminates the engine trou-
ble warning light.
Actuates the fuel pump 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).
FUEL INJECTION SYSTEM
Actuation
8-43
Checking method
Check the operating sound
of the secondary injector #1
five times.
Check the operating sound
of the secondary injector #2
five times.
Check the operating sound
of the secondary injector #3
five times.
Check the operating sound
of the secondary injector #4
five times.
Check the operating of the
steering damper.
Check the operating sound
of the air induction system
solenoid five times.
Check the operating sound
of the fuel pump relay five
times.