Yamaha YZFR1Y(C) 2009 Service Manual page 437

Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
D:01
Checking
method
Meter display
D:13
Checking
method
Item/components and
probable cause
1 Connection of throttle posi-
tion sensor coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
2 Connection of main harness
ECU coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
3 Continuity of wire harness
4 Sensor installation status
15
Open or short circuit of throttle position sensor lead
Engine startup: Possible under certain conditions
Riding: Possible under certain conditions
D:01
D:13
Throttle position sensor signal 1
• 12–21 (fully closed position)
• 97–106 (fully opened position)
• Check with throttle valve fully closed.
• Check with throttle valve fully opened.
Throttle position sensor signal 2
• 9–23 (fully closed position)
• 94–108 (fully opened position)
• Check with throttle valve fully closed.
• Check with throttle valve fully opened.
Check or maintenance job
Poor connection → Connect
it securely, or repair/replace
the wire harness.
Poor connection → Connect
it securely, or repair/replace
the wire harness.
Open or short circuit →
Replace the wire harness.
Black/Blue–Black/Blue
White–White
Blue–Blue
Black–Black
Check for loose mounting,
pinched mounting, or hard
mounting.
Make sure that the mounting
position is correct.
Refer to "ADJUSTING THE
THROTTLE POSITION SEN-
SOR" on page 7-19.
8-50
FUEL INJECTION SYSTEM
Sensor inspection proce-
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
dure