Yamaha WR250F 2022 Owner's Service Manual page 386

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
Diag-
nostic
Item
code
No.
06 Coolant temperature
07 Vehicle speed pulses
08 Lean angle sensor
• Upright
• Overturn
09 Monitor voltage
21 Neutral switch
• Gear in neutral
• Gear not in neutral
25 Gear position switch
• Gear in 1st or 2nd
• Gear in other than 1st or 2nd • OFF
60 EEPROM fault code display
• No fault
• CO adjustment valve
• Power Tuner injection cor-
rection setting 0–8, or Power
Tuner ignition timing correc-
tion setting 0–8
61 Malfunction history () code
display *1
• There is no history.
• There is some history.
62 Malfunction history () code
erasure *1
• There is no history.
• There is some history.
Display
Displays the coolant tempera-
ture.
Vehicle speed pulse
0–999
Displays the output voltage.
• 0.4–1.4 (V)
• 3.7–4.4 (V)
Displays the fuel system volt-
age.
• Approximately 12.0 (V)
• ON
• OFF
• ON
• 00
• 01
• 07
• 00
• Other: Displays the fault code
of ().
• 00
• Other: Displays the total num-
ber of () and ().
9-13
Procedure
Compare the actually mea-
sured coolant temperature
with the Yamaha diagnostic
tool display value.
Check that the number
increases when the front
wheel is rotated. The number
is cumulative and does not
reset each time the wheel is
stopped.
Remove the ECU, and incline
it 45 or more.
—
Operate the shift pedal.
Operate the shift pedal.
—
—
Replace all () with () by
the operation start process-
ing.