  We discuss possibilities of measuring CP violation in the Two-Higgs-Doublet
Model by studying effects of one-loop generated $ZZZ$ and $ZWW$ vertices. We
discuss a set of CP-sensitive asymmetries for $ZZ$ and $W^+W^-$ production at
linear $e^+e^-$-colliders, that directly depends on the weak-basis invariant Im
$J_2$ that parametrises the strength of CP violation. Given the restrictions on
this model that follow from the LHC measurements, the predicted effects are
small. Pursuing such measurements is however very important, as an observed
signal might point to a richer scalar sector.
