Yamaha Yzf R1 2007 Manual

FUEL INJECTION SYSTEM
8-42
Actuator operation table61 Malfunction history code —
 No history 00
 History exists 11-60 (Fault detection code)
 (If more than one code 
number is detected, the dis-
play changes every two 
seconds to show all the 
detected code numbers. 
When all code numbers are 
shown, the display repeats.)
62 Malfunction history code 
erasure
 No history 00 —
 History  exists  Displays the total number of 
malfunctions, including the 
current malfunction, that 
have occurred since...

FUEL INJECTION SYSTEM
8-43
31 Cylinder-#2 ignition coilActuates the cylinder-#2 igni-
tion coil five times at one-sec-
ond intervals.
Illuminates the engine trou-
ble warning light.Check the spark five times.
 Connect an ignition 
checker.
32 Cylinder-#3 ignition coilActuates the cylinder-#3 igni-
tion coil five times at one-sec-
ond intervals.
Illuminates the engine trou-
ble warning light.Check the spark five times.
 Connect an ignition 
checker.
33 Cylinder-#4 ignition coilActuates the cylinder-#4...

FUEL INJECTION SYSTEM
8-44
EAS27461
TROUBLESHOOTING DETAILS
This section describes the measures per fault code number displayed on the meter. Check and ser-
vice 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 
according 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
8-45
Fault code No. 11 SymptomNo normal signals are received from the cylinder identifi-
cation sensor when the engine is started or while the 
vehicle is being driven.
Diagnostic code No. — —
Orde
rItem/components and probable 
causeCheck or maintenance jobReinstatement 
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...

FUEL INJECTION SYSTEM
8-46
Fault code No. 12 SymptomNo normal signals are received from the crankshaft posi-
tion sensor.
Diagnostic code No. — —
Orde
rItem/components and probable 
causeCheck or maintenance jobReinstatement 
method
1 Installed condition of crankshaft posi-
tion sensorCheck for looseness or pinching. Cranking the 
engine.
2 Connections
 Crankshaft position sensor coupler
 Main wire harness ECU coupler Check the coupler for any pins 
that may have pulled out.
 Check the locking...

FUEL INJECTION SYSTEM
8-47
Fault code No. 14 SymptomIntake air pressure sensor: hose system malfunction 
(clogged or detached hose).
Diagnostic code No. 03 Intake air pressure sensor
Orde
rItem/components and probable 
causeCheck or maintenance jobReinstatement 
method
1 Intake air pressure sensor hose  Check the intake air pressure 
sensor hose condition.
 Repair or replace the sensor 
hose.Cranking the 
engine.
2 Defective intake air pressure sensor.  Execute the diagnostic mode.
(Code No. 03)
...

FUEL INJECTION SYSTEM
8-48
Fault code No. 17 Symptom EXUP servo motor circuit: open or short circuit detected.
Diagnostic code No. 53 EXUP servo motor
Orde
rItem/components and probable 
causeCheck or maintenance jobReinstatement 
method
1 Connections
 EXUP servo motor coupler
 Main wire harness ECU coupler Check the coupler for any pins 
that may have pulled out.
 Check the locking condition of 
the coupler.
 If there is a malfunction, repair it 
and connect the coupler 
securely.Reinstated...

FUEL INJECTION SYSTEM
8-49
Fault code No. 19 SymptomOpen circuit is detected in the input line from the side-
stand switch to the ECU.
Diagnostic code No. 20 Sidestand switch
Orde
rItem/components and probable 
causeCheck or maintenance jobReinstatement 
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
8-50
Fault code No. 21 SymptomCoolant temperature sensor: open or short circuit 
detected.
Diagnostic code No. 06 Coolant temperature sensor
Orde
rItem/components and probable 
causeCheck or maintenance jobReinstatement 
method
1 Connections
 Coolant temperature sensor coupler
 Main wire harness ECU coupler Check the coupler for any pins 
that may have pulled out.
 Check the locking condition of 
the couplers.
 If there is a malfunction, repair it 
and connect the coupler...

FUEL INJECTION SYSTEM
8-51
Fault code No. 23 SymptomAtmospheric pressure sensor: open or short circuit 
detected.
Diagnostic code No. 02 Atmospheric pressure sensor
Orde
rItem/components and probable 
causeCheck or maintenance jobReinstatement 
method
1 Connections
 Atmospheric pressure sensor cou-
pler
 Main wire harness ECU coupler Check the coupler for any pins 
that may have pulled out.
 Check the locking condition of 
the coupler.
 If there is a malfunction, repair it 
and connect the coupler...