Tech A states that on many new vehicles the PCM/TCM needs to be reflashed after rebuilding the transmission. Tech B states that many manufacturers will release updated software for PCM/TCMs after a vehicle has been manufactured. Who is correct?

Question

Quizplus · Accepted Answer

Both Tech A and Tech B are correct. Tech A is correct because reflashing the PCM/TCM can be necessary after transmission work to ensure proper communication and function. Tech B is correct because manufacturers often release software updates post-manufacture to improve performance or fix issues.

Tech a States That on Many New Vehicles the PCM/TCM