Yamaha YZF-R1(B) 2012 Service Manual

Also see for YZF-R1 2012: Service manual

Contents

FUEL INJECTION SYSTEM8-955 Supply voltage of accelera-tor position sensor leadCheck the supply voltage.Accelerator position sensorsignal 1Black/Blue–WhiteAccelerator position sensorsignal 2Black/Blue–BlackRefer to “CHECKING THEACCELERATOR POSITIONSENSOR” on page 8-143.Place the main switch to theON position, and check thefault code indication.No fault code indicated. →Recovered.Fault code indicated. →Check the next step.Line disconnec-tion pointsOutputvoltageDisconnection ofground lead5 VDisconnection ofoutput line0 VDisconnection ofpower supply line0 VFault code No. 59Symptom Open or short circuit of accelerator position sensor leadFail-safe action Engine startup: Possible under certain conditionsRiding: Possible under certain conditionsDiagnostic monitor-ing code No.D:14D:15D:14Meter displayAccelerator position sensor signal 1• 12–22 (fully closed position)• 97–107 (fully opened position)Checkingmethod• Check with throttle grip fully closed.• Check with throttle grip fully open.D:15Meter displayAccelerator position sensor signal 2• 10–24 (fully closed position)• 95–109 (fully opened position)Checkingmethod• Check with throttle grip fully closed.• Check with throttle grip fully open.Item/components andprobable cause Check or maintenance job Sensor inspection proce-dure