  In this paper, we formulate black hole solutions through extended
gravitational decoupling scheme in the framework of self-interacting
Brans-Dicke theory. The addition of a new source in the matter distribution
increases the degrees of freedom in the system of field equations.
Transformations in radial as well as temporal metric functions split the system
into two arrays. Each array includes the effects of only one source (either
seed or additional). The seed source is assumed to be a vacuum and the
corresponding system is specified through the Schwarzschild metric. In order to
construct a suitable solution of the second system, constraints are applied on
the metric potentials and energy-momentum tensor of the additional source. We
obtain three solutions corresponding to different values of the decoupling
parameter in the presence of a massive scalar field. The extra source is
classified as normal or exotic through energy conditions. It is found that two
solutions agree with the energy bounds and thus have normal matter as their
source.
