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Home >> Infiniti >> 2021 >> Q50 Signature Edition, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (6 Of 6) >> Engine (ECM) >> U0122 Vehicle Dynamics Control Module >> DTC Description >> VR30DDTT engine >> Fail-Safe
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VR30DDTT engine: Fail-Safe

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Traveling control mode

Accelerator angle variation control

ECM controls the accelerator pedal depression speed to make it slower than actual speed. This causes a drop in accelerating performance and encourages the driver to repair malfunction.

NOTE: ECM does not control the accelerator pedal releasing speed.

Combustion control mode

Stratified charge combustion control at starting

No stratified charge combustion at starting (cold start).
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