Yamaha WR450F Owner's Service Manual page 421

LIST OF SELF-DIAGNOSTIC AND FAIL-SAFE ACTIONS
ACTUATOR OPERATION TABLE
Diag-
nostic
code
No.
30 Ignition coil
36 Injector
51 Radiator fan motor relay
52 Headlight relay
Item
Actuates the ignition coil five
times at one-second inter-
vals.
"WARNING" on the Yamaha
diagnostic tool blinks five
times when the ignition coil is
actuated.
Actuates the injector five
times at one-second inter-
vals.
"WARNING" on the Yamaha
diagnostic tool blinks five
times when the radiator fan
motor relay is actuated.
Actuates the radiator fan mo-
tor relay five times at five-sec-
ond intervals.
"WARNING" on the Yamaha
diagnostic tool blinks five
times when the radiator fan
motor relay is actuated.
Actuates the headlight relay
five times at five-second in-
tervals.
"WARNING" on the Yamaha
diagnostic tool blinks five
times when the headlight re-
lay is actuated.
Actuation
10-8
Procedure
Check that a spark is gener-
ated five times.
• Connect an ignition
checker.
TIP: Before performing
this operation, be sure to
disconnect the fuel pump
coupler.
Check that injector is actu-
ated five times by listening
for the operating sound.
Check that the radiator fan
motor relay is actuated five
times by listening for the op-
erating sound.
Check that the headlight re-
lay is actuated five times by
listening for the operating
sound.