Transman,
I’m sure that your scanner will scan any control module (computer) on the car; but, I believe that what tgtcat6 needs to have scanned for codes, is in the TCM (Transmission Control Module). Most engine OBD II scan tools (which the auto parts store has) will only scan the engine computer (ECM, or PCM), not the TCM.
tgtcat6,
You may have to go to a transmission shop to have the TCM scanned (for a fee).
PCM = Powertrain Control Module (engine computer) is the same as ECM = Engine Control Module (engine computer).