My 2.5 litre 97 Cirrus will not start after PCM replacement

You have coil on plug ignition? That top wire may be shorted to ground, somewhere? Or the pcm coil driver has a problem? If the coil caused the first pcm to fail and you didn't fix it, It might cause the new pcm to fail, also. Hope not. Just my opinion.

took our kids 99 Cirrus to shop always had to jump the car. When mechanic was called he said he had traced a ground to under the fuse box.But now the car would not start or jump he said we need to reflash the computer. Took it to Chrysler dealer shop. They replaced distributor and computer 1300 dollars. They said it was fixed. Got the car back. Let it set for weekend. Tried to use it Monday morning would not start. Took the car back to dealership got a loaner vehicle. After a month dealership called and said the car had a bad battery. Now we had the kids replace the battery twice before we ever took it to the firsl shop. I think the car has a short draining down the battery and am considering a battery cut off switch to isolate the battery when not using the vehicle. Getting very discouraged and poor.

WELL I AM LOOKING AT AUTOMATIC SHUT RELAY BAD OR THE BAD COIL POWER TRANSISTOR.YOU WILL NEED A SCANNER TO TELL YOU IF YOUR CMP SENSOR OR CKP SENSOR IS WORKING.

I have a '95 Cirrus LX 2.5L V6 (with 150k miles) that has been having the same problem -- it just shuts off unexpectedly while driving and then fails to start right afterward. No "Check Engine" light beforehand and no fault codes were stored. After setting for a while, the car would eventually start again. Initially this problem happened only seldomly but over several months it gradually became more frequent.

After doing a lot of research on the Internet and troubleshooting with the Haynes manual, the prime suspects were as follows:
1) Crankshaft Position Sensor (mounted onto the engine block under the distributor). I replaced this and the car started but it didn't last long before it abruptly quit again. This time, whatever was degrading finally broke for good; the car would no longer start even after sitting for a couple days.

2) Camshaft Position sensor and/or ignition coil -- (both are in the distributor on the 95 Cirrus LX 2.5L V6). I replaced the distributor (cost about $225). The car still would not start, though!

Using the electrical diagrams in the Haynes manual, I began troubleshooting and found that all of the top three mentioned items use the same +8VDC from pin 44 of the Powertrain Control Module (PCM). I was only reading +4.88VDC -- way too low for for the two 'Hall Effect' solid-state sensors to work properly.

I didn't want to spend hundreds of dollars buying a new PCM if I wasn't absolutely sure it was the problem so I took out my PCM (it's up front between the fuse box and the air cleaner on the driver's side and can be removed fairly easily). Since this is a single-board electronic device, being an electronics technician, I tried an old trick and froze the PCM for more than 12 hours so the circuit board and solder joints would contract and make a better connection. I then reinstalled the PCM and tried starting the engine -- and it fired right up and ran smoothly.

So, the PCM (P/N PO4606064) ended up being my problem.

NOTE: There are two replacement models of PCM for this car. One model is for cars with "Firm Feel Suspension (FFS)" and another model for those without; mine DOES NOT HAVE FFS. Make sure you get the correct one.
Also, on one of the threads on the Internet for another person having this same problem, a Master Mechanic stated that 'Firm Feel Suspension (FFS)' was the same thing as "Speed Sensitive (power-assisted) Steering (SSS)". I confirmed with the Chrysler experts that THIS IS NOT THE CASE! They are separate things -- according to my VIN, my car does not have FFS but it has SSS.

that pcm needs reprograming, you just cant buy one and put it in, the new computer needs to be programed or the car wont run, it might start but it will die out,have the pcm programed and if that was your problem the car should run. hope this helps.

you dont need to reprogram it but the numnbers do need to match or you can get really wierd issues.

Check crankshaft sensor.

Try replacing the PCM. Also could be somthing with the Anti theft system.