general information - Martin Nez

FI SYSTEM DIAGNOSIS 4-21ITEMFAIL-SAFE MODESTARTINGABILITYRUNNINGABILITYSecondary throttle valveactuatorSecondary throttle valve is fixed tofull close position. When motor disconnectionor lock occurs, powerfrom ECM is shut off.“YES”“YES”STP sensorSecondary throttle valve is fixed tofull close position.“YES”“YES”Gear position signalGear position signal is fixed to 6thgear.“YES”“YES”HO2 sensorFeedback compensation is inhibited.(Air/fuel ratio is fixed to normal.)“YES”“YES”PAIR control solenoid valveECM stops controlling PAIR controlsolenoid valve.“YES”“YES”The engine can start and can run even if the above signal is not received from each sensor. But, the enginerunning condition is not complete, providing only emergency help (by fail-safe circuit). In this case, it is necessaryto bring the motorcycle to the workshop for complete repair.When two ignition signals or two injector signals are not received by ECM, the fail-safe circuit can not workand ignition or injection is stopped.