Replacing a door lock actuator on a Dodge Caravan can be an expensive endeavor. Depending on the model year, parts and labor can range from around $170 to $500 or more. It is important to know exactly which type of door lock actuator your vehicle has before beginning any repair work as there are several different types available for the Dodge Caravan. The cost may also vary depending on where you get it done; some shops will charge more than others due to experience or specialized equipment needed for certain models. Additionally, many mechanics offer discounts when multiple repairs are performed at once, so if other maintenance needs attention as well then this could help reduce overall costs associated with replacing the door lock actuator.