FUEL INJECTION SYSTEM
8-40
TIP
Before troubleshooting, disconnect the starter motor lead from the starter relay.
Fault code No.
44
Item
EEPROM fault code number: an error is detected while read-
ing or writing on EEPROM.
Fail-safe system
Able/Unable to start engine
Able/Unable to drive vehicle
Diagnostic code No.
60
Diagnostic tool display
EEPROM fault code display
• 00: No fault
• 01: CO adjustment value
• 07: Setting tool adjustment values 0–8 for fuel injection amount or
ignition timing
Procedure
—
Item Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service
completion
1
Locate the malfunction
Execute the diagnostic mode
(Code No. 60).
00: Go to item 4.
01: Go to item 2.
07: Go to item 3.
—
2
“01” is indicated in Diagnostic
mode (Code No. 60) EEP-
ROM data error for adjust-
ment of CO concentration
Change the CO concentra-
tion, and rewrite in EEPROM.
After this adjustment, push
the engine stop switch, then
push the start switch.
Memory not recovered
Re-
place the ECU.
Push the start switch.
Fault code number is not dis-
played
Service is finished.
Fault code number is dis-
played
Repeat the proce-
dure in item 1. If the same
number is indicated, perform
the procedure in item 4.
3
“07” is indicated in Diagnostic
mode (Code No. 60) EEP-
ROM data error for setting
tool adjustment values for
fuel injection amount or igni-
tion timing.
Erase the setting map in the
diagnostic mode (diagnostic
code No. 65).
Push the start switch.
Fault code number is not dis-
played
Service is finished.
Fault code number is dis-
played
Repeat the proce-
dure in item 1. If the same
number is indicated, perform
the procedure in item 4.
4
Malfunction in ECU.
Replace the ECU.
Summary of Contents for YZ 2015 Series
Page 6: ...EASB291006 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Page 10: ......
Page 33: ...CONTROL FUNCTIONS 1 21 a 2...
Page 65: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 22 EASB291066...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27...
Page 72: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29...
Page 74: ...CABLE ROUTING DIAGRAM 2 31 EASB291068 CABLE ROUTING DIAGRAM...
Page 76: ...CABLE ROUTING DIAGRAM 2 33...
Page 78: ...CABLE ROUTING DIAGRAM 2 35...
Page 80: ...CABLE ROUTING DIAGRAM 2 37...
Page 82: ...CABLE ROUTING DIAGRAM 2 39...
Page 84: ...CABLE ROUTING DIAGRAM 2 41...
Page 86: ...CABLE ROUTING DIAGRAM 2 43...
Page 88: ...CABLE ROUTING DIAGRAM 2 45...
Page 128: ...ELECTRICAL SYSTEM 3 38...
Page 200: ...CHAIN DRIVE 4 70...
Page 244: ...ELECTRIC STARTER 5 41...
Page 266: ...OIL PUMP AND BALANCER GEAR 5 63 c d 6 6 7 8 8 b...
Page 286: ...TRANSMISSION 5 83...
Page 306: ...CHECKING THE INTAKE AIR TEMPERATURE SENSOR 8 67 CHECKING THE FUEL INJECTOR 8 68...
Page 321: ...CHARGING SYSTEM 8 15 EASB291338...
Page 325: ...COOLING SYSTEM For JPN 8 19 EASB291341...
Page 355: ...FUEL PUMP SYSTEM 8 49 EASB291348...
Page 356: ...ELECTRICAL COMPONENTS 8 50 ELECTRICAL COMPONENTS EASB291349 8 9 10 1 3 2 4 5 6 7...
Page 358: ...ELECTRICAL COMPONENTS 8 52 11 10 9 2 3 1 6 7 8 4 5...
Page 360: ...ELECTRICAL COMPONENTS 8 54 EASB291350 CHECKING THE SWITCHES 4 1 3 2 E B S E B E B E E B B...
Page 382: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7...