Yamaha SR400 2014 Service Manual page 300

Diag-
nostic
code
No.
D30 Ignition coil
D36 Injector
D48 Air induction system sole-
noid
D50 Fuel pump relay
D52 Headlight relay
Item
When the engine stop switch
is set from " " to " ", the
ignition coil is actuated five
times at one-second intervals
and the "WARNING" LED on
the FI diagnostic tool comes
on each time the coil is actu-
ated.
When the engine stop switch
is set from " " to " ", the
injector is actuated five times
at one-second intervals and
the "WARNING" LED on the
FI diagnostic tool comes on
each time the injector is actu-
ated.
When the engine stop switch
is set from " " to " ", the air
induction system solenoid is
actuated five times at
one-second intervals and the
"WARNING" LED on the FI
diagnostic tool comes on
each time the solenoid is
actuated.
When the engine stop switch
is set from " " to " ", the
fuel pump relay is actuated
five times at five-second
intervals (2 seconds ON, 3
seconds OFF), and the
"WARNING" LED on the FI
diagnostic tool comes on
each time the relay is actu-
ated.
When the engine stop switch
is set from " " to " ", the
headlight relay is actuated
five times at five-second
intervals (2 seconds on, 3
seconds off), and the FI diag-
nostic tool "WARNING" LED,
high beam indicator light,
and the headlight come on
each time the relay is actu-
ated.
FUEL INJECTION SYSTEM
FI diagnostic tool dis-
play/Actuation
7-43
Procedure
Check that a spark is gen-
erated five times.
• Connect an ignition
checker.
Check that the injector is
actuated five times by lis-
tening for the operating
sound.
Check that the air induction
system solenoid is actu-
ated five times by listening
for the operating sound.
Check that the fuel pump
relay is actuated five times
by listening for the operat-
ing sound.
Check that the headlight
relay is actuated five times
by listening for the operat-
ing sound.