Yamaha YZF-R1(B) 2012 Service Manual

Also see for YZF-R1 2012: Service manual

Contents

FUEL INJECTION SYSTEM8-62Fault code No. 23Symptom Open or short circuit of atmospheric pressure sensor leadFail-safe action Engine startup: PossibleRiding: PossibleDiagnostic monitor-ing code No. D:02Meter display Displays the atmospheric pressure.Checking method Compare the actually measured atmospheric pressure with themeter display value.Item/components andprobable cause Check or maintenance job Sensor inspection proce-dure1 Connection of atmosphericpressure sensor couplerCheck the connection of thecoupler is secure.Remove the coupler, andcheck each pin (for bending,wear, or locking).Poor connection → Connectit securely, or replace thewire harness.Place the main switch to theON position, and check thefault code indication.No fault code indicated. →Recovered.Fault code indicated. →Check the next step.2 Connection of main harnessECU couplerCheck the connection of thecoupler is secure.Remove the coupler andcheck each pin (for bending,wear, or locking).Poor connection → Connectit securely, or replace thewire harness.Place the main switch to theON position, and check thefault code indication.No fault code indicated. →Recovered.Fault code indicated. →Check the next step.3 Continuity of wire harness Open or short circuit →Replace the wire harness.Black/Blue–Black/BluePink–PinkBlue–BluePlace the main switch to theON position, and check thefault code indication.No fault code indicated. →Recovered.Fault code indicated. →Check the next step.