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Home >> Infiniti >> 2019 >> QX50 Pure, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (11 Of 12) >> DTC/Circuit Diagnosis >> DTC P34AE: Electric Intake Valve Timing Control Position Sensor >> DTC Description >> Fail-Safe
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DTC Description: Fail-Safe

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Device fix mode

  • This mode fixes 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).

Combustion control mode

Stratified charge combustion control at starting

No stratified charge combustion at starting (cold start).