Yamaha RX10RTL, Supplemental Service Manual

Page: 144 / 355

FI
TROUBLESHOOTING CHART
Engine operation is not normal or the engine trouble warning light flash.
*Engine trouble warning light may not come on even if the engine operation is not normal.
The engine trouble warning light flash.
Check the fault code number displayed on the
meter.
Identify the probable cause of malfunction. (Refer
to the “Diagnostic fault code table”.)
Check and repair the probable case of malfunc-
tion.
Perform ECU reinstatement action. (Refer to
“Reinstatement method” in “TROUBLESHOOT-
ING DETAILS”.)
Turn the main switch to “OFF”, turn the main
switch back to “ON”, and then check if the fault
code number is still displayed.
Fault code No.
appear
Fault code No.
disappear
Check and repair.
(Refer to “TROU-
BLESHOOTING
DETAILS”.)
Monitor the operation
of the sensors and
actuators in the diag-
nostic mode. (Refer
to “Diagnostic mode
table” in chapter 7) Check and repair.
(Refer to “FAIL-SAFE
ACTIONS TABLE”.)
The engine trouble warning light does not come
on.
Check the operation of following sensors and
actuators in the diagnostic mode (Refer to “Diag-
nostic mode table” in chapter 7.)
01: Throttle position
sensor (throttle
angle)
03: Intake air pressure
07: Vehicle speed
pulse
09: Fuel system volt-
age (battery bolt)
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
Malfunction of
engine Defective sensor
or actuator
Check and repair
the inner parts of
engine. (Refer to
Chapter 5)
Check and repair
the corresponding
sensor or actuator.
Check the engine condition.
Repairs completed
Erasing the malfunction history:*
The malfunction history is stored even if the main
switch is turned OFF.
The malfunction history must be erased in the
diagnostic mode. (Refer to the “Diagnostic mode
table (Diagnostic code No.62)”)
OK NG
OK OK NG
OK
Fault code
number displayed
Fault code number not displayed
* Operated when the engine trouble warning light flash.
FUEL INJECTION SYSTEM
63