Yamaha YZ250FX 2021, Owner'S Service Manual

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SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
9-13
06 Coolant temperature Displays the coolant tempera-
ture.
Compare the actually mea-
sured coolant temperature
with the Yamaha diagnostic
tool display value.
08 Lean angle sensor Displays the output voltage. Remove the ECU, and incline
it 45

or more.
• Upright • 0.4–1.4 (V)
• Overturn • 3.7–4.4 (V)
09 Monitor voltage Displays the fuel system volt-
age.
• Approximately 12.0 (V)
—
21 Neutral switch Operate the shift pedal.
• Gear in neutral • ON
• Gear not in neutral • OFF
25 Gear position switch Operate the shift pedal.
• Gear in 1st or 2nd • ON
• Gear in other than 1st or 2nd • OFF
60 EEPROM fault code display —
• No fault • 00
• CO adjustment valve • 01
• Power Tuner injection cor-
rection setting 0–8, or Power
Tuner ignition timing correc-
tion setting 0–8
• 07
61 Malfunction history (  ) code
display *1
—
• There is no history. • 00
• There is some history. • Other: Displays the fault code
of (  ).
62 Malfunction history (  ) code
erasure *1
Replace all (  ) with (

) by
the operation start process-
ing.
• There is no history. • 00
• There is some history. • Other: Displays the total num-
ber of (

) and (  ).
64 Setting history display Displays the presence or
absence of the setting history by
Power Tuner.
—
• There is no history. • 00
• There is some history. • 01
• History is unknown (History
data is damaged).
• 02
Diag-
nostic
code
No.
Item Display Procedure