Yamaha MBK X-MAX 300 2017, Service Manual

Page: 369 / 462

FUEL INJECTION SYSTEM
8-64
Fault code No. P0601
Fault code No. P062F
1 Malfunction in charging system. Check the charging system.
Refer to “CHARGING SYSTEM”
on page 8-11.
Defective rectifier/regulator or
stator coil assembly
→
Replace.
Defective connection in the
charging system circuit
→
Prop-
erly connect or replace the wire
harness.
Start the engine and let it idle for
approximately 5 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recover”
→
Go to
item 2 and finish the service.
Condition is “Malfunction”
→
Repeat item 1.
2 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. P0560
Item Charging voltage is abnormal.
Fault code No. P0601
Item Faulty ECU memory.
Fail-safe system
Unable to start engine
Unable to drive vehicle
Diagnostic code No. —
Tool display —
Procedure —
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion
1 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (Engine Control Unit)” on
page 8-128. Turn the main switch to “ON”.
Check that the engine trouble
warning light does not come on.
Fault code No. P062F
Item
EEPROM fault code number: an error is detected while reading or
writing on EEPROM.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 60
Tool display
00
• No malfunctions detected (If the self-diagnosis fault code P062F is indi-
cated, the ECU is defective.)
01 (CO adjustment value)
11 (Data error for ISC (Idle Speed Control) learning values)
12 (O
2
feedback learning value)
14 Tire diameter learning value
Procedure —
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion