FUEL INJECTION SYSTEM
8-47
Fault code No.
12
Symptom
No normal signals are received from the crankshaft posi-
tion sensor.
Diagnostic code No.
—
—
Orde
r
Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1
Installed condition of crankshaft posi-
tion sensor
Check for looseness or pinching.
Cranking the
engine.
2
Connections
• Crankshaft position sensor coupler
• Main wire harness ECU coupler
• Check the coupler for any pins
that may have pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler
securely.
3
Open or short circuit in wire harness.
• Repair or replace if there is an
open or short circuit.
• Between the crankshaft position
sensor coupler and ECU cou-
pler.
(Gray–Gray)
(Black/Blue–Black/Blue)
4
Defective crankshaft position sensor.
• Replace if defective.
Refer to "CHECKING THE
CRANKSHAFT POSITION
SENSOR" on page 8-96.
Fault code No.
13
Symptom Intake air pressure sensor: open or short circuit detected.
Diagnostic code No.
03
Intake air pressure sensor
Orde
r
Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1
Connections
• Intake air pressure sensor coupler
• Main wire harness ECU coupler
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler
securely.
Reinstated
automatically if
a normal signal
is received.
2
Open or short circuit in wire harness
and/or sub-wire-harness 2.
• Repair or replace if there is an
open or short circuit.
• Between intake air pressure
sensor coupler and ECU cou-
pler
(Black/Blue–Black/Blue)
(Pink/White–Pink/White)
(Blue–Blue)
3
Defective intake air pressure sensor.
• Execute the diagnostic mode.
(Code No.03)
• Replace if defective.
Refer to "CHECKING THE
INTAKE AIR PRESSURE SEN-
SOR" on page 8-103.
Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
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