Yamaha YZF-R1(P) 2002, Руководство по обслуживанию, Страница: 346 / 439

7 - 5
FI
FUEL INJECTION SYSTEM
TROUBLESHOORING CHART
“Engine runs irregularly.” or “Engine trouble warning light is illuminated.”
* Engine trouble warning light may not be illuminated even if the engine runs irregularly.
When the engine trouble warning light is illumi-
nated
Checking the self-diagnostic fault code number:
Check the self-diagnostic fault code number dis-
played on the meter.
Specifying the malfunctioned system:
Specify the malfunctioned system by referring to
the Fail-safe actions table.
Presuming the cause:
Presume the malfunction cause by referring to the
Diagnostic monitoring code table.
Checking and repaining the presumed place of mal-
function.
Diagnostic
Monitoring code No.
YES
Diagnostic
Monitoring code No.
NONE
Check and repair in
accordance with the
“Troubleshooting
details”, monitoring the
operation of sensor and
actuator in the Diagnostic
monitoring mode (Refer
to
“Diagnostic mode
table” in chapter 7.).
Check and repair in
accordance with the
trouble shooting
details.
ECU reinstatement action:
Perform ECU reinstatement action referring to the
reinstatement method in the troubleshooting details.
Repair Completion
Checking the meter display:
Check whether the self-diagnostic fault code num-
ber is shown after turning the main switch OFF
once, and then turning it back ON.
Not displayed
Erasing the malfunction history:*
Malfunction history will be stored even if the main
switch is turned OFF. To erase the malfunction his-
tory, it is required to operate to erase the malfunction
history in the Diagnostic monitoring mode. (Refer to
Diagnostic mode table (Diagnostic code No.62))
When the engine trouble warning light is not illumi-
nated
Inspecting the sensor actuator: Check the operation of
following sensors and actuators in the Diagnostic moni-
toring mode (Refer to “Diagnostic mode table” in chapter
7.)
01: Throttle position sensor (throttle angle)
30: Ignition coil #1
31: Ignition coil #2
32: Ignition coil #3
33: Ignition coil #4
36: Injector #1
37: Injector #2
38: Injector #3
39: Injector #4
48: Al system solenoid
OK
OK
OK
Malfunction of
engine unit
OK NG
NG
Check and repair
the inner parts of
engine referring to
the engine edition
of chapter 5.
Checking the engine condition.
Displayed
again.
* Operation when the engine trouble warning light is illumi-
nated.
Defective sensor
or actuator
Check and repair
the corresponding
sensor or actuator.