Yamaha Tenere 700 2020 Service Manual page 378

B-8 Malfunction in ECU.
B-9 Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P0511
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of ISC unit 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).
2 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).
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).
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-130.
Start the engine and let it idle for
approximately 10 seconds.
Confirm that the fault code has
a condition of "Recover" using
the malfunction mode of the
Yamaha diagnostic tool, and
then delete the fault code.
P0511
ISC unit: malfunction in ISC unit.
Able to start engine
Able to drive vehicle
—
—
—
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the sub-wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the sub-wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
8-67
FUEL INJECTION SYSTEM
Service is finished.
Confirmation of service com-
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 2.
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 3.
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 4.
pletion