The answer depends on the year and model of the Chrysler or Dodge vehicle. There's no single answer. The computer (more accurately called the Powertrain Control Module or PCM, sometimes also called an Engine Control Unit or ECU) is vehicle-specific. A PCM from one year's Dodge Caravan won't necessarily work in another year's Chrysler Town & Country, even if they appear superficially similar.
To find a compatible PCM, you need to provide the Year, Make, Model, and Engine size of the vehicle. Then you can consult a parts supplier or use an online parts catalog specifying those details.
