Yamaha YZF-R1(B) 2012 Service Manual

Also see for YZF-R1 2012: Service manual

Contents

FUEL INJECTION SYSTEM8-613 Continuity of wire harness Open or short circuit →Replace the wire harness.Black/Blue–Black/BlueBrown/White–Brown/WhitePlace the main switch to theON position, and check thefault code indication.No fault code indicated. →Recovered.Fault code indicated. →Check the next step.4 Installation status of intakeair temperature sensorCheck the mounting sectionfor a loose or pinched mount-ing.Make sure that the mountingposition is correct.Place the main switch to theON position, and check thefault code indication.No fault code indicated. →Recovered.Fault code indicated. →Check the next step.5 Intake air temperature sensormalfunctionCheck in the diagnostic mode(Code No. 05).Sensor inspection procedureRefer to “CHECKING THEINTAKE AIR TEMPERA-TURE SENSOR” on page 8-146.During cold starting: A tem-perature close to the ambienttemperature is indicated.Indication is incorrect. →Replace the intake air tem-perature sensor.Place the main switch to theON position, and check thefault code indication.No fault code indicated. →Recovered.Fault code indicated. →Check the next step.6 ECU malfunction Replace the ECUFault code No. 22Symptom Open or short circuit of intake air temperature sensor leadFail-safe action Engine startup: PossibleRiding: PossibleDiagnostic monitor-ing code No. D:05Meter display When engine is cold: Displays temperature closer to air temperatureWhen engine is hot: Air temperature + approx. 20 °C (68 °F)Checking method Compare the actually measured intake air temperature with themeter display value.Item/components andprobable cause Check or maintenance job Sensor inspection proce-dure