Yamaha 2007 R6 Service

FUEL INJECTION SYSTEM
8-48
EAS27460
TROUBLESHOOTING DETAILS
This section describes the measures per fault code number displayed on the meter. Check and service 
the items or components that are the probable cause of the malfunction following the order given.
After the check and service of the malfunctioning part has been completed, reset the meter display ac-
cording to the reinstatement method.
Fault code No.:
Code number displayed on the meter when the engine failed to work normally. Refer to...

FUEL INJECTION SYSTEM
8-49
Fault code No. 11 Symptom No normal signals are received from the cylinder identifi-
cation sensor when the engine is started or while the ve-
hicle is being driven.
Diagnostic code No.——
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Installed condition of cylinder identifi-
cation sensor.Check for looseness or pinching. Cranking the 
engine.
2 Connections
•Cylinder identification sensor cou-
pler
•Main wire harness ECU coupler•Check...

FUEL INJECTION SYSTEM
8-50
Fault code No. 12 Symptom No normal signals are received from the crankshaft posi-
tion sensor.
Diagnostic code No.——
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Installed condition of crankshaft posi-
tion sensor.Check for looseness or pinching. Cranking the 
engine.
2 Connections
•Crankshaft position sensor coupler
•Main wire harness ECU coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition...

FUEL INJECTION SYSTEM
8-51
Fault code No. 13 Symptom Intake air pressure sensor: open or short circuit detected.
Diagnostic code No. 03 Intake air pressure sensor
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Intake air pressure sensor coupler
•Main wire harness ECU coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition of 
the couplers.
•If there is a malfunction, repair it 
and connect the coupler se-...

FUEL INJECTION SYSTEM
8-52
Fault code No. 15 Symptom Throttle position sensor (for throttle valves): open or 
short circuit detected.
Diagnostic code No. 01
13Throttle position sensor (for throttle valves) signal 1
Throttle position sensor (for throttle valves) signal 2
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Installed condition of throttle position 
sensor (for throttle valves).•Check for looseness or pinch-
ing.
•Check that the sensor is in-
stalled in...

FUEL INJECTION SYSTEM
8-53
Fault code No. 17 Symptom EXUP servo motor circuit: open or short circuit detected.
Diagnostic code No. 53 EXUP servo motor
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•EXUP servo motor coupler
•Main wire harness ECU coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition of 
the couplers.
•If there is a malfunction, repair it 
and connect the coupler se-
curely.Reinstated au-...

FUEL INJECTION SYSTEM
8-54
Fault code No. 19 Symptom Open circuit is detected in the input lead from the side-
stand switch to the ECU.
Diagnostic code No. 20 Sidestand switch
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Main wire harness ECU coupler•Execute the diagnostic mode. 
(Code No. 20)
•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...

FUEL INJECTION SYSTEM
8-55
Fault code No. 21 Symptom Coolant temperature sensor: open or short circuit detect-
ed.
Diagnostic code No. 06 Coolant temperature sensor
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Coolant temperature sensor coupler
•Main wire harness ECU coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition of 
the couplers.
•If there is a malfunction, repair it 
and connect the coupler se-...

FUEL INJECTION SYSTEM
8-56
Fault code No. 23 Symptom Atmospheric pressure sensor: open or short circuit de-
tected.
Diagnostic code No. 02 Atmospheric pressure sensor
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Connections
•Atmospheric pressure sensor cou-
pler
•Main wire harness ECU coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking condition of 
the couplers.
•If there is a malfunction, repair it 
and connect the coupler...

FUEL INJECTION SYSTEM
8-57
Fault code No. 24 Symptom No normal signal is received from the O2 sensor.
Diagnostic code No.——
Order Item/components and probable 
causeCheck or maintenance job Reinstatement 
method
1 Installed state of O
2 sensor. Check for looseness or pinching. Execute the di-
agnostic mode 
(Code No. 63).
(Set the engine 
stop switch to 
“”.) 2 Connections
•O
2 sensor coupler
•Main wire harness ECU coupler•Check the couplers for any pins 
that may be pulled out.
•Check the locking...