| ITEM | FAIL-SAFE MODE | STARTING ABILITY | RUNNING ABILITY |
| IAP sensor | Intake air pressure is fixed to 760 mmHg. | "YES" | "YES" |
| TP sensor | The throttle opening is fixed to full open position. | "YES" | "YES" |
| ECT sensor | Engine coolant temperature value is fixed to 80°C (176°F). | "YES" | "YES" |
| IAT sensor | Intake air temperature value is fixed to 40°C (104°F). | "YES" | "YES" |
| Ignition signal | #1.1 or #1.2 Ignition-off | "YES" | "YES" |
| 1 cylinder can run. | |||
| 2.1 or #2.2 Ignition-off | "YES" | "YES" | |
| #2 cylinder can run. | |||
| Injection signal | #1 Fuel-cut | "YES" | "YES" |
| 2 cylinder can run. | |||
| 2 Fuel-cut | "YES" | "YES" | |
| 1 cylinder can run. | |||
| Secondary throttle valve actuator | Secondary throttle valve is fixed to full close position. When motor disconnection or lock occurs, power from ECM is shut off. | "YES" | "YES" |
| STP sensor | Secondary throttle valve is fixed to full close position. | "YES" | "YES" |
| Gear position signal | Gear position signal is fixed to 5th gear. | "YES" | "YES" |
| Heated oxygen sensor (E-02, 19, 24) | Fuel-air compensation ratio is fixed to normal condition. | "YES" | "YES" |
| PAIR control solenoid valve | ECM stops controlling PAIR control solenoid valve. | "YES" | "YES" |
| EXCV actuator | EXCV actuator is fixed to full open position. When motor disconnection or lock occurs, power from ECM is shut off. | "YES" | "YES" |
| ISC valve | When motor disconnection or lock occurs, power from ECM is shut off. | "YES" | "YES" |
The engine can start and can run even if the above signal is not received from each sensor. But, the engine running condition is not complete, providing only emergency help (by fail-safe circuit). In this case, it is necessary to 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 work and ignition or injection is stopped.