Yamaha 2012 TMAX XP500A Service Manual page 420

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Item/components and
probable cause
1 Sensor installation status
2 Throttle position sensor mal-
function
3 ECU malfunction
TIP
• If fault codes 15 and 16 are indicated simultaneously, take the actions specified for fault code 15
first.
• If fault codes 16 and 37 are indicated simultaneously, take the actions specified for fault code 16
first.
16
Throttle position sensor: stuck throttle position sensor detected.
(signal from throttle position sensor will not change.)
Able to start engine
Able to drive vehicle
d:01
Throttle position sensor
• 14–20 (fully closed position)
• 97–107 (fully open position)
• Check with throttle valves fully closed.
• Check with throttle valves fully open.
Check or maintenance job
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 7-9.
Check in the diagnostic mode
(Code No. d:01).
When throttle is fully closed:
A value of 14–20 is indicated.
When throttle is fully open: A
value of 97–107 is indicated.
If the indication is outside of
range → Replace the throttle
position sensor.
Replace the ECU.
FUEL INJECTION SYSTEM
8-45
Sensor inspection proce-
dure
Place the main switch to the
ON position, and then open
and close the throttle.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Place the main switch to the
ON position, and then open
and close the throttle.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.