Transmision quit working all of a suden.

Depending on what reader you have it may not pull up the code for the trans. Normally a pro model needs to be used for this and auto parts store don't have those. If hte fluid was burnt or dark brown there is a ood possiblilty that the trans is toast. Meaning internal damage. But try to have it checked prior to removal.

Such symptoms usually indicates a failed torque converter, which is rather common.