  We present the multiwavelength flaring activity of the blazar AO 0235+164
during its recent active period from 2013 to 2019. From a discrete correlation
function (DCF) analysis, we find a significant (>95%) correlation between radio
and $\gamma$-ray light curves with flares at longer wavelengths following
flares at shorter wavelengths. We identify a new jet component in 43 GHz VLBA
data that was ejected from the radio core on MJD $57246^{+26}_{-30}$ (2015
August 12), during the peak of the 2015 radio flare. From the analysis of the
jet component, we derived a Doppler factor of $\delta_{\rm var}=28.5\pm8.4$, a
bulk Lorentz factor of $\Gamma=16.8^{+3.6}_{-3.1}$, and an intrinsic viewing
angle of $\theta_{\rm v}=1.42^{+1.07}_{-0.52}\textrm{ degrees}$. Investigation
of the quasi-simultaneous radio data revealed a partially absorbed spectrum
with the turnover frequency varying in the range of $10-70$ GHz and the peak
flux density varying in the range of $0.7-4$ Jy. We find the synchrotron
self-absorption magnetic field strength to be $B_{\rm
SSA}=15.3^{+12.6}_{-14.0}$ mG at the peak of the 2015 radio flare, which is
comparable to the equipartition magnetic field strength of $B_{\rm
EQ}=43.6^{+10.6}_{-10.4}$ mG calculated for the same epoch. Additional analysis
of the radio emission region in the relativistic jet of AO 0235+164 suggests
that it did not significantly deviate from equipartition during its recent
flaring activity.
