Yamaha 2012 TMAX XP500A, Service Manual

Page: 420 / 530

FUEL INJECTION SYSTEM
8-45
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.
Fault code No. 16
Item
Throttle position sensor: stuck throttle position sensor detected.
(signal from throttle position sensor will not change.)
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. d:01
Meter display
Throttle position sensor
• 14–20 (fully closed position)
• 97–107 (fully open position)
Procedure
• Check with throttle valves fully closed.
• Check with throttle valves fully open.
Item/components and
probable cause
Check or maintenance job
Sensor inspection proce-
dure
1 Sensor installation status 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. 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.
2 Throttle position sensor mal-
function 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.
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.
3 ECU malfunction Replace the ECU.