Yamaha YZF-R1(B) 2012 Service Manual page 492

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
5 Supply voltage of accelera-
tor position sensor lead
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
Check the supply voltage.
Accelerator position sensor
signal 1
Black/Blue–White
Accelerator position sensor
signal 2
Black/Blue–Black
Refer to "CHECKING THE
ACCELERATOR POSITION
SENSOR" on page 8-143.
Line disconnec-
tion points
Disconnection of
ground lead
Disconnection of
output line
Disconnection of
power supply line
FUEL INJECTION SYSTEM
Output
voltage
5 V
0 V
0 V
8-95
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.