Yamaha 2014 MT-07 Service Manual

FUEL INJECTION SYSTEM8-51Fault code No. 333 Defective lean angle sensor. Execute the diagnostic mode.(Code No. 08)Replace if defective.Refer to “CHECKING THELEAN ANGLE SENSOR” onpage 8-135.Turn the main switch to “ON”,then to “OFF”, and then back to“ON”.Fault code number is not dis-played → Service is finished.Fault code number is displayed→ Go to item 4.4 Malfunction in ECU. Replace the ECU.Refer to “REPLACING THEECU (engine control unit)” onpage 8-128.Fault code No. 30Item Latch up detected.Fault code No. 33Item Cylinder-#1 ignition coil: open or short circuit detected in the prima-ry lead of the cylinder-#1 ignition coil.Fail-safe system Able to start engine (depending on the number of faulty cylinders)Able to drive vehicle (depending on the number of faulty cylinders)Diagnostic code No. 30ActuationActuates the cylinder-#1 ignition coil five times at one-second intervals.The “CHECK” indicator and “ ” on the Yamaha diagnostic tool screencomes on each time the ignition coil is actuated.Procedure Check that a spark is generated five times.• Connect an ignition checker.Item Probable cause of malfunc-tion and check Maintenance job Confirmation of service com-pletion1 Connection of cylinder-#1 igni-tion coil coupler.Check the locking condition ofthe coupler.Disconnect the coupler andcheck the pins (bent or brokenterminals and locking conditionof the pins).Improperly connected → Con-nect the coupler securely or re-place the wire harness.Start the engine and let it idle forapproximately 5 seconds.Fault code number is not dis-played → Service is finished.Fault code number is displayed→ Go to item 2.2 Connection of ECU coupler.Check the locking condition ofthe coupler.Disconnect the coupler andcheck the pins (bent or brokenterminals and locking conditionof the pins).Improperly connected → Con-nect the coupler securely or re-place the wire harness.Start the engine and let it idle forapproximately 5 seconds.Fault code number is not dis-played → Service is finished.Fault code number is displayed→ Go to item 3.3 Wire harness continuity. Open or short circuit → Replacethe wire harness.Between cylinder-#1 ignition coilcoupler and ECU coupler.orange–orangeBetween cylinder-#1 ignition coilcoupler and right handlebarswitch coupler.red/black–red/blackStart the engine and let it idle forapproximately 5 seconds.Fault code number is not dis-played → Service is finished.Fault code number is displayed→ Go to item 4.