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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 6) >> Engine (ECM) >> DTC P0046: WASTEGATE Control Motor >> DTC Description >> VR30DDTT engine >> DTC Detection Logic
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DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0046

TC/SC BOOST CONTROL A

(Turbocharger/supercharger boost control "A" circuit range/performance)

When engine is running and the RPM is steady, the electric wastegate actuator drive duty is 100% or more.

  • Motor drive duty is 100% or more for 5 consecutive seconds
  • The difference between target stroke and actual stroke is 1.95 mm (0.0768 in) or more for 5 consecutive seconds