Fail-Safe Mode

When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.

Fig 1: Displaying Fail-Safe Mode Table

Courtesy of NISSAN MOTOR CO., U.S.A.

The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 degrees.

The ECM regulates the opening speed of the throttle valve to be slower than the normal condition. So, the acceleration will be poor.