Trouble Shooting Chart - Yamaha 2009 Diversion XJ6S Service Manual

EAS20S1002

TROUBLE SHOOTING CHART

Engine operation is not normal or the engine trouble warning light is on.
Engine trouble warning light may not come on even if the engine operation is not normal.
The engine trouble warning light comes on.
Check and repair the probable case of malfunc-
tion.
Fault code No. displayed
Check and repair.
(Refer to "TROUBLESHOOTING DE-
TAILS".)
Perform ECU reinstatement action. (Refer to "Re-
instatement method" in "TROUBLESHOOTING
DETAILS".)
Turn the main switch to "OFF", turn the main switch
back to "ON", and then check if the fault code num-
ber is still displayed.
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 code
table (Diagnostic code No.62)")
Fault code number not displayed
Repairs completed
* Operated when the engine trouble warning light is on.
8-47
FUEL INJECTION SYSTEM
The engine trouble warning light does not come
on.
Check the operation of following sensors and ac-
tuators in the diagnostic mode (Refer to "Diagnos-
tic code table")
01: Throttle position sensor (throttle angle)
30: Ignition coil #1, #4
31: Ignition coil #2, #3
36: Fuel injector #1, #4
37: Fuel injector #2, #3
48: Air induction system solenoid
OK
Malfunction of en-
gine
Check and repair
the inner parts of
engine. (Refer to
Chapter 5)
OK
Check the engine condition.
Fault code
number displayed
NG
Defective sensor
or actuator
Check and repair
the corresponding
sensor or actua-
tor.
NG OK
OK