Monitor Description

WARNING: This page is about a different variant/trim than selected.

At high engine speeds, the VVTL-i actuator regulates the hydraulic pressure applied to the shims on the high lift cam side. Switching from the standard to high lift cam allows the lift of the intake and exhaust valves to be increased. The engine exhaust capacity is also enhanced. As a result, the engine power is boosted. When the engine speed is 6,500 rpm or more, the ECM increases the OCV control signal duty ratio, and opens the oil passage to the VVTL-i actuator. The actuator activates the shims and the intake and exhaust valves on the high lift cam side. The ECM monitors the current flowing into the OCV to determine the actual duty ratio of the control signal. If the duty ratio is outside the normal range, the ECM interprets this as a malfunction in the OCV. The ECM illuminates the MIL and sets the DTC.