Yamaha Tenere 700 2020, Service Manual

Page: 365 / 472

FUEL INJECTION SYSTEM
8-54
Fault code No. P0351
3 Wire harness continuity. Open or short circuit
→
Replace
the wire harness.
Between crankshaft position
sensor coupler and ECU cou-
pler.
gray–gray
Between crankshaft position
sensor coupler and ECU cou-
pler.
black/blue–black/blue
Crank the engine, and then
check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 4.
4 Installed condition of crankshaft
position sensor.
Check for looseness or pinch-
ing.
Check the gap between the
crankshaft position sensor and
the generator rotor. Improperly installed sensor
→
Reinstall or replace the sensor.
Refer to “GENERATOR AND
STARTER CLUTCH” on page
5-33.
Crank the engine, and then
check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 5.
5 Defective crankshaft position
sensor. Check the crankshaft position
sensor.
Refer to “CHECKING THE
CRANKSHAFT POSITION
SENSOR” on page 8-135.
Replace if defective. Crank the engine, and then
check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 6.
6 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-130. Service is finished.
7 Delete the fault code and check
that the engine trouble warning
light goes off. Confirm that the fault code has
a condition of “Recover” using
the Yamaha diagnostic tool, and
then delete the fault code.
Fault code No. P0351
Item
Cylinder-#1 ignition coil: open or short circuit detected in the prima-
ry lead of the cylinder-#1 ignition coil.
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. 30
Actuation
Actuates the cylinder-#1 ignition coil five times at one-second intervals.
The indicator on the Yamaha diagnostic tool screen comes on each time
the ignition coil is actuated.
Procedure
Check that a spark is generated five times.
• Connect an ignition checker.
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion