Yamaha FZ09E Service Manual

FUEL INJECTION SYSTEMFault code N o. 42A Speed sensor: no normal signals are received from the speedsensor.Item B Neutral switch: open or short circuit is detected.c Clutch switch: open or short circuit Is detected.Procedure Operate the transmission, clutch lever, and sidestand.Item Probable cause of Maintenance job Confirm ation of serv icemalfunction and check comp let ion1 Locate the malfunction. Execute the diagnostic Value does not increase ~mode. (Code No. 07) Go to item 2 in section A forRotate the rear wheel by the speed sensor.hand and check th at the indi·cated value increases.Execute the diagnostic In correct indication ~ Go tomode. (Code No. 21) item 2 in section B for theWhen the transmission is in neutral switch.neutral: "ON"When the transmission is ingear with the clutch leverrelease d: "OFF"When the transmission is in Incorrect indication ~ Go togear with the clutch lever item 2.squeezed and the sidestandretracted: "ON"2 Clutch lever adjustment. Refer to "ADJUSTING THE Execute the diagnosticCLUTCH LEVER FREE mode. (Code No. 21)PLAY" on page 3· 11. When the clutch lever isre leased: "OFF"When the clutch lever issqueezed: "ON"Correct i nd i cation ~ Go toitem 9.Incorrect indication ~ Go toitem 3.3 Connection of clutch switch Improperly connected ~ Execute the diagnosticcoupler. Connect the coupler securely mode. (Code No. 21)Check the locking condition or replace the wire harness. When the clutch lever isof the coupler. re leased: "OFF''Disconnect the coupler and When the clutch lever ischeck the pins (bent or bro· squeezed: "ON"ken terminals and locking Correct i nd i cat i on~ Go tocondition of the pins). item 9.In correct indication ~ Go toitem 4.8-69