Yamaha WR450FB 2012 Owner's Service Manual page 336

Diag-
nostic
Item
code
No.
d:30 Ignition coil
d:36 Fuel injector (#1)
d:52 Headlight relay
Headlight
d:60 EEPROM fault
code number dis-
play
d:61 Malfunction history
( ) code number
*
display 1
d:62 Malfunction history
( ) code number
*
erasure 1
Details
Check that power is sup-
plied to the ignition coil.
• Check that a spark is gen-
erated.
Check that power is sup-
plied to the fuel injector.
Check the fuel injector op-
eration by listening for the
operating sound or by con-
firming the operation visual-
ly.
Check the headlight relay
operation by listening for
the operating sound.
Displays the location of the
abnormal portion of the EE-
PROM data that has been
detected as fault code num-
ber 44.
If there is more than one lo-
cation, the display alter-
nates every 2 seconds.
Displays the fault code
numbers that were previ-
ously recorded in the mal-
function history ( ).
If more than one code num-
ber is detected, the display
alternates every 2 seconds
to show all the detected
code numbers.
Displays the total number of
malfunctions that have
been recorded in the mal-
function history ( and ).
In addition, erases the mal-
function history ( ).
9-32
FUEL INJECTION SYSTEM
Standard values of the meter dis-
play or description of operation
Actuates the ignition coil five times at
1-second intervals.
The "WARNING" LED on the FI diag-
nostic tool comes on each time the ig-
nition coil is actuated.
TIP: Before performing this opera-
tion, be sure to disconnect the fuel
pump coupler.
Actuates the fuel injector five times at
1-second intervals.
The "WARNING" LED on the FI diag-
nostic tool comes on each time the fuel
injector is actuated.
Actuates the headlight relay five times
at 5-second intervals.
The "WARNING" LED on the FI diag-
nostic tool comes on each time the
headlight relay is actuated.
00: No fault (If fault code number 44 is
displayed, the ECU is malfunctioning.)
01: CO adjustment value
00: No malfunction history ( )
Other number displayed: Displays the
code numbers recorded in the mal-
function history . Refer to the fault
codes.
00: No malfunction history ( and )
Other number displayed: Displays the
total number of malfunctions that have
been recorded in the malfunction his-
tory ( and ).
When this operation starts, all of the
malfunctions ( ) are overwritten to the
normal condition ( ).
(TIP: The malfunctions [ ] are not
overwritten to the normal condition
[ ].)