Yamaha FZ09E 2014 Service Manual page 374

Fault code No.
Item
2 Connection of wire harness
ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
3 Wire harness continuity.
4 Installed condition of crank-
shaft position sensor.
Check for looseness or
pinching.
Check the gap (0.85 mm
(0.0335 in)) between the
crankshaft position sensor
and the generator rotor.
5 Defective crankshaft position
sensor.
6 Malfunction in ECU.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
12
Crankshaft position sensor: no normal signals are received
from the crankshaft position sensor.
Improperly connected 
Connect the coupler securely
or replace the wire harness.
Open or short circuit 
Replace the wire harness.
Between crankshaft position
sensor coupler and ECU
coupler.
gray–gray
Between crankshaft position
sensor coupler and joint con-
nector.
black/blue–black/blue
Between joint connector and
ECU coupler.
black/blue–black/blue
Improperly installed sensor
 Reinstall or replace the
sensor.
Refer to "GENERATOR AND
STARTER CLUTCH" on
page 5-30.
Check the crankshaft posi-
tion sensor.
Refer to "CHECKING THE
CRANKSHAFT POSITION
SENSOR" on page 8-101.
Replace if defective.
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-93.
13
Intake air pressure sensor 1: open or short circuit detected.
Able to start engine
Able to drive vehicle
03
Displays the intake air pressure.
8-39
FUEL INJECTION SYSTEM
Crank the engine.
Fault code number is not dis-
played  Service is finished.
Fault code number is dis-
played  Go to item 3.
Crank the engine.
Fault code number is not dis-
played  Service is finished.
Fault code number is dis-
played  Go to item 4.
Crank the engine.
Fault code number is not dis-
played  Service is finished.
Fault code number is dis-
played  Go to item 5.
Crank the engine.
Fault code number is not dis-
played  Service is finished.
Fault code number is dis-
played  Go to item 6.