What is a PCM? on 2006 Kia Sedona

The kia dealership said our problem may be the PCM. What is a PCM?

Asked by for the 2006 Kia Sedona
PCM = Powertrain Control Module

2 more answers , 1 more comment
program control module. it is the brain of all fuel control functions.

Thank You!
It is the vehicle computer that controls everything from emissions - fuel delivery - transmission shifting.