If you replace the PCM with a new unit, will it need to be programed before it will work?

Yes. The VIN needs to be programmed into the PCM before it will function. The only way to do it is with a DRBIII or StarScan, depending on your application. These are only available at your dodge dealership.

Maybe with a newer model year but absolutely not for my 93.

True, I should've asked for year/make/model...

The Vetronix scan tool will program the PCM also,1996 and up.Ther is one thing about Chrysler PCMs:Do not hook up jumper cables or a jumper box backwards.That is an easy way to smoke up a Chrysler PCM and ruin it.Here is Vtronix's website: www.vetronix.com

(Ther is one thing about Chrysler PCMs:biggrin:o not hook up jumper cables or a jumper box backwards.That is an easy way to smoke up a Chrysler PCM and ruin it.)

That must be what happened,Just before it quit, My son helped Me jump off MY dump truck & I know it was momentarily hooked up backwards at the Jeep. Thanks , That info narrows it down a bit.
Thanks,
marktruck

I finaly deduced from info on this froum that My computer on My 98 JGC
Blew after the cables were hooked up backwards while jumping of a ford L-9000 dump truck.The Dealer wanted $565.00 for a new computer +I would have to have it towed to the dealer@$100.00 +$127.00 to program it after its installed. thats with me installing the computer,total- $847.44 w/tax.Nothing wrong with that thats their price, however I found http://www.ecmking.com/ on the internet Who has a division that works on car computers a lot cheaper
Cartronics Auto Parts
616 Bark Cove
Owensboro,KY 42303
$280.00 + $15.00 UPS there & $15.00 UPS back total $310.00 came back programed all I did was plug in & go. It cranked right up.I'm so impressed with thier quaility & price I wanted to post here for others who need computer repair.
marktruck

That's good for a lot of people to know. Thanks for the info. I do not need it cause I have an older model but never know I might in the furture.