Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

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General Information





Component Location





General Description

The CVVT (Continuously Variable Valve Timing) system built on the camshaft helps the engine decrease the exhaust gas and increase engine power and fuel economy by changing the valve open/close timing of the intake camshaft continuously. The intake valve control solenoid, the main control part of the CVVT, changes the direction of the oil path through the CVVT by the duty control of the ECM and changes the open and close timing of the intake and exhaust valves.

DTC Description

ECM sets DTC P0077 if the ECM detects that the OCV control circuit is open or short to battery

DTC Detecting Condition





Specification









Schematic Diagram





Signal Waveform