Yamaha 2009 YZF-R1 (Y) Service Manual page 484

Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
D:14
Checking
method
Meter display
D:15
Checking
method
Item/components and
probable cause
3 Continuity of wire harness
4 Sensor installation status
59
Open or short circuit of accelerator position sensor lead
Engine startup: Possible under certain conditions
Riding: Possible under certain conditions
D:14
D:15
Accelerator position sensor signal 1
• 12–22 (fully closed position)
• 97–107 (fully opened position)
• Check with throttle grip fully closed.
• Check with throttle grip fully open.
Accelerator position sensor signal 2
• 10–24 (fully closed position)
• 95–109 (fully opened position)
• Check with throttle grip fully closed.
• Check with throttle grip fully open.
Check or maintenance job
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
ACCELERATOR POSITION
SENSOR" on page 7-19.
FUEL INJECTION SYSTEM
8-93
Sensor inspection proce-
dure
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.