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Home >> Nissan-Datsun >> 2021 >> Altima S >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Pr25DD) (DTC/Circuit Diagnosis) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P2101: Electric Throttle Control Function >> DTC Description >> PR25DD engine >> Fail-Safe
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PR25DD engine: Fail-Safe

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Device fix mode
  • This mode fixes the electric IVT motor and the EVT control solenoid valve in the reference position.
  • The intake manifold runner control valve motor is turned OFF (intake manifold runner control valve opens).
  • A control signals is not transmitted to EGR volume control valve and the EGR volume control is deactivated.

Others

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
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