There is provided a variable valve control system for an internal
combustion engine, including an intake valve event and lift control
mechanism capable of varying an operation angle of an intake valve of the
engine; an intake valve timing control mechanism capable of varying a
center phase of the operation angle of the intake valve; a detection unit
to detect a malfunction in the intake valve timing control mechanism; and
a fail-safe unit to control the intake valve event and lift control
mechanism upon detection of the malfunction in the intake valve timing
control mechanism in such a manner that intake valve opening timing
becomes advanced with respect to top dead center.