Yamaha 2007 FZ6-NA Service Manual

Contents

FUEL INJECTION SYSTEM8-44Diagnostic code number to be used when the diagnostic mode is operated. Refer to "DIAGNOSTICMODE" on page 8-37.Fault code No. 12 Symptom No normal signals are received from the crankshaft posi-tion sensor.Diagnostic code No.Order Item/components and probablecause Check or maintenance job Reinstate-ment method1 Installed condition of crankshaft posi-tion sensorCheck the installed area forlooseness or pinching.Cranking theengine.2Connected state of connector• Crankshaft position sensor coupler• Main wire harness ECU coupler• Check the coupler for any pinsthat may have pulled out.• Check the locking condition ofthe coupler.• If there is a malfunction, repair itand connect it securely.3Open or short circuit in wire harnessand/or sub lead.• Repair or replace if there is anopen or short circuit.• Between the crankshaft positionsensor coupler and ECU cou-pler.(Gray–Gray)(Black/Blue–Black/Blue)4Defective crankshaft position sensor. • Replace if defective.Refer to "CHECKING THECRANKSHAFT POSITIONSENSOR" on page 8-122.Fault code No. 13 Symptom Intake air pressure sensor-open or short circuit detected.Diagnostic code No. 03 Intake air pressure sensorOrder Item/components and probablecause Check or maintenance job Reinstate-ment method1Connected state of connector• Intake air pressure sensor coupler• Main wire harness ECU coupler• Sub-wire harness coupler• Check the coupler for any pinsthat may have pulled out.• Check the locking condition ofthe coupler.• If there is a malfunction, repair itand connect it securely.Turning themain switchON.2Open or short circuit in wire harnessand/or sub lead.• Repair or replace if there is anopen or short circuit.• Between intake air pressuresensor coupler and ECU cou-pler(Black/Blue–Black/Blue)(Pink/White–Pink/White)(Blue–Blue)3Defective intake air pressure sensor • Execute the diagnostic monitor-ing mode. (Code No.03)• Replace if defective.Refer to "CHECKING THEINTAKE AIR PRESSURE SEN-SOR" on page 8-129.