Yamaha R15 2022 Service Manual page 401

FUEL INJECTION SYSTEM TROUBLESHOOTING
Fault code No.
Item
7 Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P0201
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of fuel injector cou-
pler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
2 Defective fuel injector.
3 Connection of ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
P0132
O sensor: short to power circuit is detected.
2
Normal signal is not received from the O
Confirm that the fault code has
a condition of "Recover" using
the YDT, and then delete the
fault code.
P0201
Fuel injector: malfunction in fuel injector.
Unable to start engine
Unable to drive vehicle
36
Actuates fuel injector five times at one-second intervals.
The "check" indicator on the YDT screen comes on each time the fuel in-
jector is actuated.
Disconnect the fuel pump coupler. The fuel injector is actuated five times
by listening for the operating sound.
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Measure the fuel injector re-
sistance. (Approx.12 Ω).
Replace the fuel injector, if
out of specification.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
8-68
ELEC
sensor.
2
Confirmation of service com-
pletion
Execute the diagnostic mode.
(Code No. 36)
Operating sound → Go to item
6.
No operating sound → Go to
item 2.
Execute the diagnostic mode.
(Code No. 36)
Operating sound → Go to item
6.
No operating sound → Go to
item 3.
Execute the diagnostic mode.
(Code No. 36)
Operating sound → Go to item
6.
No operating sound → Go to
item 4.
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