Yamaha MBK X-MAX 300 2017 Service Manual page 368

Fault code No.
Item
2 Connection of wire harness
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).
3 Wire harness continuity.
4 Faulty ISC unit operation.
5 Malfunction in ECU
6 Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P0560
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
P0511
ISC (Idle Speed Control) unit: ISC unit does not operate.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Open or short circuit → Replace
the wire harness.
Between ISC unit coupler and
ECU coupler.
pink–pink
green/yellow–green/yellow
gray–gray
sky blue–sky blue
Execute the diagnostic mode.
(Code No. D54)
ISC unit operation sound is not
heard. → Replace the ISC unit.
Refer to "CLEANING THE ISC
(IDLE SPEED CONTROL)
UNIT AND THROTTLE BODY"
on page 7-15.
Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-128.
Confirm that the fault code has
a condition of "Recover" using
the Yamaha diagnostic tool, and
then delete the fault code.
P0560
Charging voltage is abnormal.
Able to start engine
Able to drive vehicle
—
—
—
Maintenance job
8-63
FUEL INJECTION SYSTEM
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha
diagnostic tool.
Condition is "Recover" → Go to
item 6 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
diagnostic tool.
Condition is "Recover" → Go to
item 6 and finish the service.
Condition is "Malfunction" → Go
to item 4.
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha
diagnostic tool.
Condition is "Recover" → Go to
item 6 and finish the service.
Condition is "Malfunction" → Go
to item 5.
Service is finished.
Confirmation of service com-
pletion