If it is the PCM that needs to be replaced, it can't be reset. The PCM has transistors inside of it that ground the coils to make them fire. If they don't work anymore it's usually because they have failed so you need to replace the PCM. I'm assuming with a 2.4 that you have very few options in the van. When you install a PCM it is programmed with the vehicles vehicle identification number (VIN). There could be other modules on the vehicle that also know the vin so if you put in a used PCM the numbers won't match and you could get some warning lamps on. The vin is not over writeable. As long as you don't have the grey headed keys, it should start and run on a used PCM as long as the part numbers are the same. I will go on record as being against using used modules, I've seen it cause so many problems it's not funny.