Yamaha TMAX XP530E-A 2017 Service Manual page 486

Fault code No.
Item
4 "11" is indicated in diagnostic
mode. (Code No. 60)
EEPROM data error for ISC
(idle speed control) learning val-
ues.
"12" is indicated in the diagnos-
tic mode. (Code No. 60)
EEPROM data error for O
back learning values.
"13" is indicated in the diagnos-
tic mode. (Code No. 60)
EEPROM data error for OBD
memory values.
5 Malfunction in ECU.
6 Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P0638
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of throttle servo
motor 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 wire harness
ECU coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
P062F
EEPROM fault code number: an error is detected while reading or
writing on EEPROM.
Push the OFF/LOCK switch.
feed-
2
Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-230.
Confirm that the fault code has
a condition of "Recovered"
using the Yamaha diagnostic
tool, and then delete the fault
code.
P0638
YCC-T drive system: malfunction detected.
Able/Unable to start engine
Able/Unable to drive vehicle
—
—
—
Maintenance job
Improperly connected  Con-
nect the coupler securely or
replace the wire harness.
Improperly connected  Con-
nect the coupler securely or
replace the wire harness.
8-95
FUEL INJECTION SYSTEM
Push the ON/start switch, and
then check the condition of the
fault code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered"  Go
to item 6 and finish the service.
Condition is "Detected" 
Repeat item 1.
If the same number is indicated,
go to item 5.
Service is finished.
Confirmation of service com-
Push the ON/start switch, and
then check the condition of the
fault code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered"  Go
to item 8 and finish the service.
Condition is "Detected"  Go to
item 2.
Push the ON/start switch, and
then check the condition of the
fault code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recovered"  Go
to item 8 and finish the service.
Condition is "Detected"  Go to
item 3.
pletion