Yamaha YZFR1Y(C) 2009 Service Manual page 424

EAS14B1115
TROUBLESHOOTING METHOD
The engine operation is not normal and the
engine trouble warning light comes on.
1. Check:
• Fault code number
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Check the fault code number displayed on
the meter.
b. Identify the faulty system with the fault
code.
c. Identify the probable cause of the malfunc-
tion.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
2. Check and repair the probable cause of
malfunction.
Fault code No.
Check and repair.
Refer to "TROUBLE-
SHOOTING
DETAILS" on page 8-
44.
Monitor the operation
of the sensors and
actuators in the diag-
nostic mode. Refer to
"Sensor operation
table" and "Actuator
operation table".
3. Perform fuel injection system reinstatement
action.
Refer to "Reinstatement method" of table in
"TROUBLESHOOTING DETAILS" on page
8-44.
4. Turn the main switch to "OFF" and back to
"ON", then check that no fault code number
is displayed.
TIP
If fault codes are displayed, repeat steps (1) to
(4) until no fault code number is displayed.
5. Erase the malfunction history in the diag-
nostic mode. Refer to "Sensor operation
table (Diagnostic code No. D:62)".
TIP
Turning the main switch to "OFF" will not erase
the malfunction history.
No fault code No.
Check and repair.
8-37
FUEL INJECTION SYSTEM
The engine operation is not normal but the
engine trouble warning light does not come
on.
1. Check the operation of following sensors
and actuators in the Diagnostic mode.
Refer to "Sensor operation table" and
"Actuator operation table".
D:01: Throttle position sensor signal 1 (throt-
tle angle)
D:13: Throttle position sensor signal 2 (throt-
tle angle)
D:14: Accelerator position sensor signal 1
(throttle angle)
D:15: Accelerator position sensor signal 2
(throttle angle)
D:30: Cylinder-#1 ignition coil
D:31: Cylinder-#2 ignition coil
D:32: Cylinder-#3 ignition coil
D:33: Cylinder-#4 ignition coil
D:36: Primary injector #1
D:37: Primary injector #2
D:38: Primary injector #3
D:39: Primary injector #4
D:40: Secondary injector #1
D:41: Secondary injector #2
D:42: Secondary injector #3
D:43: Secondary injector #4
D:48: Air induction system solenoid
If a malfunction is detected in the sensors or
actuators, repair or replace all faulty parts.
If no malfunction is detected in the sensors
and actuators, check and repair inner parts of
the engine.