Yamaha TMAX XP500F 2015, Service Manual, Page: 400 / 478

FUEL INJECTION SYSTEM
8-43
Fault code No. 16
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.
6 Supply voltage of throttle posi-
tion sensor lead. Check the supply voltage.
Blue–Black/Blue
Black/Blue–Yellow
Refer to “CHECKING THE
THROTTLE POSITION SEN-
SOR” on page 8-104. Push the ON/start switch
“
”, and check the fault
code indication.
No fault code indicated.
→
Ser-
vice is finished.
Fault code indicated.
→
Go to
item 7.
Line disconnec-
tion points Output volt-
age
Disconnection of
ground lead 5 V
Disconnection of
output line 0 V
Disconnection of
power supply line 0 V
7 Throttle position sensor mal-
function. Check in the diagnostic mode
(Code No. 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.
Push the ON/start switch
“
”, and check the fault
code indication.
No fault code indicated.
→
Ser-
vice is finished.
Fault code indicated.
→
Go to
item 8.
8 ECU malfunction. Replace the ECU.
Fault code No. 15
Item Throttle position sensor: open or short circuit detected.
Fault code No. 16
Item
Throttle position sensor: stuck throttle position sensor is detected.
(Signal from throttle position sensor will not change.)
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 01
Indicated
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
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion