Yamaha TMAX XP500F 2015 Service Manual page 414

Fault code No.
Item
1 Charging system malfunction.
Fault code No. 50
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
Procedure
Probable cause of malfunc-
Item
tion and check
1 ECU malfunction.
Fault code No. Er-1 (fault code display)
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of meter coupler.
Check the locking condition of
the coupler.
Disconnect the coupler, and
check each pin (for bending,
wear, or locking).
46
Charging voltage is abnormal.
Check the charging system.
Refer to "CHARGING SYSTEM"
on page 8-11.
Check the rectifier/regulator, AC
magneto and wire harness. →
Replace if defective.
50
Faulty ECU memory. (When this malfunction is detected in the ECU,
the fault code number might not appear.)
Unable to start engine
Unable to drive vehicle
—
—
—
Maintenance job
Replace the ECU.
Er-1 (fault code display)
ECU (engine control unit) internal malfunction (output signal error):
signals cannot be transmitted between the ECU and the multi-func-
tion meter.
Able to start engine (Unable if ECU Failure)
Able to drive vehicle (Unable if ECU Failure)
—
—
—
Maintenance job
Poor connection → Connect it
securely, or replace the wire
harness.
8-57
FUEL INJECTION SYSTEM
Start and idle the engine for ap-
proximately 5 seconds.
Then, check the fault code indi-
cation.
No fault code indicated. → Ser-
vice is finished.
Fault code indicated. → Re-
check.
Confirmation of service com-
pletion
Push the ON/start switch
" ".
Then, check that no fault code
indicated.
Confirmation of service com-
pletion
Push the ON/start switch
" ", and check the fault
code indication.
No fault code indicated. → Ser-
vice is finished.
Fault code indicated. → Go to
item 2.