Yamaha YZF-R15 Service Manual page 295

Fault
code
Symptom
No.
Error is detected while
44 reading or writing on
EEPROM.
Power supply to the fuel in-
46 jection system is not normal.
(over charge or over discharge)
Faulty ECU memory.
(When this malfunction is
detected in the ECU, the
50
fault code number might
not appear on the LCD of
the FI diagnostic tool.)
Diagnostic Code Table
Diag-
nostic
Item
code
No.
01 Throttle angle
• Fully closed position
• Fully opened position
03 Intake air pressure
05 Intake air temperature
06 Coolant temperature
07 Vehicle speed pulse
08 Lean angle sensor
• Upright
• Overturned
09 Fuel system voltage
(battery voltage)
FUEL INJECTION SYSTEM
Probable cause of malfunction
• Malfunction in ECU. (The CO adjustment
value and throttle valve fully closed notifica-
tion valve are not properly written on or
read from the internal memory.)
• Malfunction in the charging system. Refer
to "CHARGING SYSTEM" & check rectifier
& regulator on page 8-11.
• Malfunction in ECU. (The program and data
are not properly written on or read from the
internal memory.)
FI diagnostic tool display
14–20
97–107
Displays the intake air pres-
sure.
Displays the intake air tem-
perature.
Displays the coolant temper-
ature.
0-999
0.4–1.4
3.8–4.2
Approximately 12.0
8-38
Diagnostic
code No.
60
—
—
Checking method
Check for changes in dis-
played values while open-
ing and closing the throttle.
Operate the throttle while
pushing the start switch
" ". (If the display value
changes, the performance
is OK.)
Compare the actually mea-
sured air temperature with
the display value.
Compare the actually mea-
sured coolant temperature
with the meter display val-
ue.
Check that the number
increase when the front
wheel is rotated. The number
is cumulative and does not
reset each. time the wheel is
stopped.
Remove the lean angle
sensor and incline it more
than 65 degrees.
Compare with the actually
measured battery voltage.
(If the battery voltage is
lower, perform recharging.)