The CLT code is employed to quantitatively investigate how a single destabilization of the m/n = 3/2 double tearing mode (DTM) and sequential destabilizations of multi-DTMs affect the pressure crash. The focus is on the explosive reconnection process, characterized by kinetic energy bursts and the position exchange of islands on two resonant surfaces. For the first time, it has been demonstrated that pressure crashes related to the 3/2 DTM can be manipulatable by modifying the q-profile. Precursor bursts impact the behavior of the 3/2 DTM but do not significantly contribute to pressure collapse, which mainly occurs during the destabilization of the 3/2 DTM. The sequential reconnecting DTMs of different helicities culminating in a 3/2 DTM with a pressure crash may decrease the overall amplitude of the pressure crash, thereby mitigating the destructive impact of the pressure crash on plasma confinement.