Yamaha FJR1300AS(X) Service Manual page 557

Fault code No. 15
Diagnostic code No.
Order Item/components and probable
cause
1 Installed condition of throttle position
sensor.
2 Connections
• Throttle position sensor coupler
• Wire harness ECU coupler
• Sub-wire harness coupler
3 Open or short circuit in wire harness
and/or sub-wire harness.
4 Throttle position sensor lead wire
open circuit output voltage check.
5 Defective throttle position sensor.
Symptom Throttle position sensor: open or short circuit detected.
d:01 Throttle position sensor
FUEL INJECTION SYSTEM
Check or maintenance job
Check for looseness or pinching. Turning the
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
• Repair or replace if there is an
open or short circuit.
• Between throttle position sen-
sor coupler and ECU coupler.
(black/blue–black/blue)
(yellow–yellow)
(blue–blue)
• Check for open circuit and re-
place the throttle position sen-
sor.
(black/blue–yellow)
Open circuit Output voltage
item
Ground wire 5 V
open circuit
Output wire 0 V
open circuit
Power supply 0 V
wire open cir-
cuit
• Execute the diagnostic mode.
(Code No.d:01)
• Replace if defective.
Refer to "CHECKING THE
THROTTLE POSITION SEN-
SOR" on page 8-253.
8-80
Reinstatement
method
main switch to
"ON".