  We present an exploratory study for the nonperturbative determination of the
coefficient of the ${\cal O}(a)$ improvement term to the Wilson action,
$c_{SW}$. Following the work by L\"{u}scher et al., we impose the PCAC relation
as a nonperturbative improvement condition on $c_{SW}$, without, however, using
the Schr\"{o}dinger functional in our calculation.
