Yamaha YZF-R1 2007 Service Manual page 375

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Fault code No. 14
Diagnostic code No.
Orde Item/components and probable
r cause
1 Intake air pressure sensor hose
2 Defective intake air pressure sensor.
Fault code No. 15
Diagnostic code No.
Orde Item/components and probable
r cause
1 Installed condition of throttle position
sensor (for throttle valves).
2 Connections
• Throttle position sensor (for throttle
valves) coupler
• Main wire harness ECU coupler
3 Open or short circuit in wire harness.
4 Defective throttle position sensor (for
throttle valves).
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Intake air pressure sensor: hose system malfunction
Symptom
(clogged or detached hose).
03 Intake air pressure sensor
Throttle position sensor (for throttle valves): open or
Symptom
short circuit detected.
01 Throttle position sensor (for throttle valves) signal 1
13 Throttle position sensor (for throttle valves) signal 2
8-48
FUEL INJECTION SYSTEM
Check or maintenance job
• Check the intake air pressure
sensor hose condition.
• Repair or replace the sensor
hose.
• Execute the diagnostic mode.
(Code No. 03)
• Replace if defective.
Refer to "CHECKING THE
INTAKE AIR PRESSURE SEN-
SOR" on page 8-103.
Check or maintenance job
• Check for looseness or pinch-
ing.
• Check that the sensor is
installed in the specified posi-
tion.
• 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.
• Repair or replace if there is an
open or short circuit.
• Between throttle position sensor
(for throttle valves) coupler and
ECU coupler.
(Black/Blue–Black/Blue)
(White–White)
(Black–Black)
(Blue–Blue)
• Execute the diagnostic mode.
(Code Nos. 01, 13)
• Replace if defective.
Refer to "CHECKING THE
THROTTLE POSITION SEN-
SOR (FOR THROTTLE
VALVES)" on page 8-101.
Reinstatement
method
Cranking the
engine.
Reinstatement
method
Turning the
main switch to
"ON".