Yamaha YZF-R15 Service Manual page 290

Self-Diagnostic Function table
Fault
Item
code No.
Crankshaft position
12
sensor
Intake air pressure
13 sensor
(open or short circuit)
Intake air pressure
sensor
14
(clogged pressure de-
tect hole)
Throttle position sen-
15 sor
(open or short circuit)
Throttle position sen-
16 sor
(stuck)
Coolant temperature
21
sensor
Intake air tempera-
22 ture sensor
(open or short circuit)
Lean angle sensor
30
(latch up detected)
Ignition coil
33
(open circuit)
39 Fuel injector
Lean angle sensor
41
(open or short circuit)
42
Speed Sensor
(open or short circuit)
Error in reading from
44 or writing on
EEPROM
Vehicle system power
46 supply
(Monitoring voltage)
ECU internal malfunc-
50 tion
(memory check error)
Start unable warning
Symptom
No normal signals are received
from the crankshaft position sen-
sor.
Intake air pressure sensor: open
or short circuit detected.
Intake air pressure sensor:
clogged pressure detect hole.
Throttle position sensor: open or
short circuit detected.
Throttle position sensor is stuck
Coolant temperature sensor: open
or short circuit detected.
Intake air temperature sensor:
open or short circuit detected.
No normal signal is received from
the lean angle sensor.
Primary lead of the ignition coil:
open circuit detected.
Fuel injector: open or short circuit
detected.
Lean angle sensor: open or short
circuit detected.
No Normal Signals are received
from the speed sensor
Error is detected while reading
from or writing on EEPROM (CO
adjustment value, code re-regis-
tering key code, and throttle valve
fully closed notification value).
Power supply to the fuel injection
system is not normal.
Faulty ECU memory. (When this
malfunction is detected in the
ECU, the fault code number might
not appear on the meter.)
Engine trouble warning light flash-
es when the start switch is turned
ON.
8-33
FUEL INJECTION SYSTEM
Able / un-
able to start
Unable
Able
Able
Able
Able
Able
Able
Unable
Unable
Unable
Unable
Able
Able
Able
Unable
Unable
Able / un-
able to
drive
Unable
Able
Able
Able
Able
Able
Able
Unable
Unable
Unable
Unable
Able
Able
Able
Unable
Unable