Yamaha Tenere 700 2020, Service Manual, Page: 362 / 472

FUEL INJECTION SYSTEM
8-51
Fault code No. P0201
Fault code No. P0201
Item Fuel injector #1: malfunction in fuel injector #1.
Fail-safe system
Able to start engine (depending on the number of faulty cylinders)
Able to drive vehicle (depending on the number of faulty cylinders)
Diagnostic code No. 36
Actuation
Actuates fuel injector #1 five times at one-second intervals.
The indicator on the Yamaha diagnostic tool screen comes on each time
the fuel injector is actuated.
Procedure
Disconnect the fuel pump coupler. Check that fuel injector #1 is actuated
five times by listening for the operating sound.
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion
1 Connection of fuel injector #1
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). Improperly connected
→
Con-
nect the coupler securely or re-
place the wire harness.
Execute the diagnostic mode.
(Code No. 36)
Operating sound
→
Go to item
7.
No operating sound
→
Go to
item 2.
2 Defective fuel injector #1. Measure the fuel injector resis-
tance.
Replace if out of specification.
Refer to “CHECKING THE
FUEL INJECTORS” on page
8-140. Execute the diagnostic mode.
(Code No. 36)
Operating sound
→
Go to item
7.
No operating sound
→
Go to
item 3.
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). Improperly connected
→
Con-
nect the coupler securely or re-
place the wire harness.
Execute the diagnostic mode.
(Code No. 36)
Operating sound
→
Go to item
7.
No operating sound
→
Go to
item 4.
4 Connection of sub-wire har-
ness 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). Improperly connected
→
Con-
nect the coupler securely or re-
place the sub-wire harness.
Execute the diagnostic mode.
(Code No. 36)
Operating sound
→
Go to item
7.
No operating sound
→
Go to
item 5.
5 Wire harness and/or sub-wire
harness continuity. Open or short circuit
→
Replace
the wire harness and/or sub-
wire harness.
Between fuel injector #1 coupler
and sub-wire harness coupler.
red/black–red/black
red/blue–red/blue
Between sub-wire harness cou-
pler and ECU coupler.
red/black–red/black
red/blue–red/blue
Execute the diagnostic mode.
(Code No. 36)
Operating sound
→
Go to item
7.
No operating sound
→
Go to
item 6.