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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 490 (Engine Control System (VK56VD) DTC/Circuit Diagnosis (5 Of 6)) >> DTC/Circuit Diagnosis >> DTC P2128: App Sensor >> DTC Description >> Fail-Safe

DTC Description: Fail-Safe

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.

Detected items

Engine operating condition in fail-safe mode

P2127

P2128

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.