Yamaha Vmax VMX17C 2009 Service Manual page 475

Diag-
nostic
Item
code
No.
D:39 Injector #4
Air induction system sole-
D:48
noid
D:50 Fuel pump relay
D:51 Radiator fan motor relay
D:52 Headlight relay
D:53 EXUP servo motor
FUEL INJECTION SYSTEM
Actuation
Actuates the injector #4 five
times at one-second inter-
vals.
Illuminates the engine trou-
ble warning light.
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 in-
tervals.
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 mo-
tor relay for five cycles of five
seconds. (ON 2 seconds,
OFF 3 seconds)
Illuminates the engine trou-
ble warning light.
Actuates the headlight relay
for five cycles of five sec-
onds. (ON 2 seconds, OFF 3
seconds)
Illuminates the engine trou-
ble warning light.
Actuates the EXUP servo
motor (turns to open side and
to closed side).
Illuminates the engine trou-
ble warning light.
8-42
Checking method
Check the operating sound
of the injector #4 five times.
Check the operating sound
of the air induction system
solenoid five times.
Check the operating sound
of the fuel pump relay five
times.
Check the operating sound
of the radiator fan motor re-
lay five times.
Check the operating sound
of the headlight relay five
times.
Check the operating sound.