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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 (Engine Control System (DTC/Circuit Diagnosis) (5 Of 5)) >> DTC/Circuit Diagnosis >> DTC P2138: App Sensor >> DTC Description >> Fail-Safe

DTC Description: Fail-Safe

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Accelerator pedal position sensor

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.

Therefore, the acceleration will be poor.
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