Yamaha YZF-R25, Service Manual

Page: 448 / 456

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
9-7
20 Black/red lead of the ECU —
• Normal signal ON
• Abnormal signal OFF
21 Neutral switch and clutch
switch Operate the transmission
and clutch lever.
• Transmission is in neutral ON
• Transmission is in gear or
the clutch lever released
OFF
• Clutch lever is squeezed
with the transmission in
gear
ON
60 EEPROM fault code display
• No history 00
• No malfunctions detected
(If the self-diagnosis fault
code 44 is indicated, the
ECU is defective.)
—
• History exists 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)
61 Malfunction history code dis-
play
• No history 00 —
• History exists 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.)
—
62 Malfunction history code era-
sure
• No history 00 —
• History exists • 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.)
Save the malfunction history
to the computer, and then
delete the fault codes.
Diagnostic
code No.
Item Meter display Procedure