In the VVT (Variable Valve Timing) system, the appropriate intake valve open and close timing is controlled by the ECM. The ECM performs intake valve control by performing the following: 1) controlling the camshaft and camshaft timing oil control valve, and operating the camshaft timing gear; and 2) changing the relative positions of the gaps between the camshaft and crankshaft.


DTC Detection Conditions

Trouble Areas


Deviation in crankshaft and camshaft position sensor signals (2 trip detection logic)

• Mechanical system (Timing chain has jumped tooth or chain stretched)


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