Yamaha YZF-R25 Service Manual page 448

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
Diagnostic
code No.
20 Black/red lead of the ECU
• Normal signal
• Abnormal signal
21 Neutral switch and clutch
switch
• Transmission is in neutral
• Transmission is in gear or
the clutch lever released
• Clutch lever is squeezed
with the transmission in
gear
60 EEPROM fault code display
• No history
• History exists
61 Malfunction history code dis-
play
• No history
• History exists
62 Malfunction history code era-
sure
• No history
• History exists
Item
ON
OFF
ON
OFF
ON
00
• No malfunctions detected
(If the self-diagnosis fault
code 44 is indicated, the
ECU is defective.)
01–02 (Cylinder fault code)
• (If more than one cylinder
is defective, the display al-
ternates every two seconds
to show all the detected
cylinder numbers.
When all cylinder numbers
are shown, the display re-
peats the same process.)
11 (Data error for ISC (idle
speed control) learning val-
ues)
00
Fault codes 12–70
• (If more than one code
number is detected, the
display alternates every
two seconds to show all the
detected code numbers.
When all code numbers are
shown, the display repeats
the same process.)
00
• Displays the total number
of malfunctions, including
the current malfunction,
that have occurred since
the history was last erased.
(For example, if there have
been three malfunctions,
"03" is displayed.)
Meter display
9-7
Procedure
—
Operate the transmission
and clutch lever.
—
—
—
—
—
Save the malfunction history
to the computer, and then
delete the fault codes.