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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 6) >> Engine (ECM) >> P0237 TC Boost Sensor >> DTC Description >> VR30DDTT engine >> Fail-Safe
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VR30DDTT engine: Fail-Safe

Fail safe mode

Vehicle behavior

Engine output control

ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle speed to encourage the driver to repair malfunction.

Driving at 70 km/h (43 MPH) or more is possible.

NOTE: This value is a reference value converted from engine power to vehicle speed.

Actual power limitation value differs due to the malfunctioning part and driving condition.

Device fix mode
  • Fixes electric intake valve timing control motor in the reference position.
  • Fixes exhaust valve timing control solenoid valve in the reference position.
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