DTC Description

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

POSSIBLE CAUSE

Wastegate valve stuck
Wastegate valve caught a foreign matter

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.