Yamaha 2009 YZF-R1 (Y) Service Manual page 444

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
6 Throttle position sensor mal-
function
7 ECU malfunction
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
Check the throttle position
sensor signal 1 diagnostic
mode (Code No. 01).
When throttle is fully closed:
A value of 12–21 is indicated.
When throttle is fully opened:
A value of 97–106 is indi-
cated.
Check the throttle position
sensor signal 2 diagnostic
mode (Code No. 13).
When throttle is fully closed:
A value of 9–23 is indicated.
When throttle is fully opened:
A value of 94–108 is indi-
cated.
If the indication is outside of
range: Replace the throttle
position sensor.
Replace the ECU.
FUEL INJECTION SYSTEM
8-53
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.