Yamaha FZ6-SS 2004 Service Manual

Contents

7-15FUEL INJECTION SYSTEM FIFault code No. 14 Symptom Intake air pressure sensor - hose system malfunction (clogged or detachedhose).Used diagnostic code No. 03 (intake air pressure sensor)Order Inspection operation item and probablecauseOperation item and countermeasure Reinstatementmethod1 Intake air pressure sensor hose de-tached, clogged, kinked, or pinched.Intake air pressure sensor malfunctionat intermediate electrical potential.Repair or replace the sensor hose.Inspect and repair the connection.Reinstated bystarting the en-gine and oper-ating it at idle.2 Connected state of connectorIntake air pressure sensor couplerMain wiring harness ECU couplerCheck the coupler for any pins that may havepulled out.Check the looking condition of the coupler.If there is a malfunction, repair it and connect itsecurely.3 Defective intake air pressure sensor. Execute the diagnostic mode (code No. 03)Replace if defective.Refer to “Fault code No. 13”.Fault code No. 15 Symptom Throttle position sensor - open or short circuit detected.Used diagnostic code No. 01 (throttle position sensor)Order Inspection operation item and probablecauseOperation item and countermeasure Reinstatementmethod1 Installed condition of throttle positionsensor.Check the installed area for looseness orpinching.Check that it is installed in the specifiedposition.Refer to “THROTTLE BODIES” section.Reinstated byturning themain switchON.2 Connected condition of connectorInspect the coupler for any pins thatmay have pulled out.Check the locking condition of thecoupler.If there is a malfunction, repair it and connect itsecurely.Throttle position sensor couplerMain wiring harness ECU couplerSub-wire harness coupler3 Open or short circuit in wiring harnessand / or sub lead.Repair or replace if there is an open or shortcircuit.Between sensor coupler and ECU couplerblack / blue - black / blueyellow - yellowblue - blue4 Throttle position sensor lead wire opencircuit output voltage check.Check for open circuit and replace the throttleposition sensor.Black / Blue - YellowOpen circuit item Output voltageGround wire open 5 VcircuitOutput wire open 0VcircuitPower supply wire 0Vopen circuit5 Defective throttle position sensor. Execute the diagnostic mode (code No. 01)Replace if defective.Refer to “THROTTLE BODIES” section.