The crankshaft position sensor and camshaft position sensor (data provded: engine speed), along with the engine coolant temp sensor (engine coolant temp) and speed sensor (vehicle speed) send inputs to the ECM for intake valve timing control, which controls the IVT control solenoid valve.

This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve.

The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant temperature. Then, the ECM sends ON/OFF pulse duty signals to the camshaft timing control valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to increase engine torque in low/mid speed range and output in high-speed range.

DTC detecting condition: There is a gap between angle of target and
phase-control angle degree.

Possible causes:

-Harness or connectors (Intake valve timing control solenoid
valve circuit is open or shorted.)
-Intake valve timing control solenoid valve
-Crankshaft position sensor (POS)
-Camshaft position sensor (PHASE)
-Accumulation of debris to the signal pick-up portion of the camshaft

Fail safe mode: The signal is not energized to the solenoid valve and the valve control does not function.