Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Hello, did you just buy it and plug it in? did nothing else? now will not start?
did both vehicle have antitheft?> was ti advertised as such?
understood, what I was trying to ask, is, BOTH pcms must match, I am sure they do but since it is not starting? the PCM you bought? has to be programmed or the antitheft will prevent it from starting, The VIN etc has to be programmed into the new PCM so it can start
agree, some are, and this was what I was kind of asking in the beginning, I am sure there is another expert that can shed more light on this as it is on the edge , antitheft wise and so on so,, I am going to opt out and open the post to the other experts, One should be along soon to help. Sorry I could not
Do you still need some help with this? If so would you reply back with the last 8 digits of your VIN?
Thanks for the VIN!!
Your VIN 1B4HR28YXYF128430 comes back on a Driftwood 2000 Durango with only keyless entry so the PCM only needs the VIN and mileage programmed for it to start..
DO you see a part number on the PCM? By your VIN it should read 56028901AE. If not reply back with the number it has and I will see if I can interchange it.. If you plug in your old PCM does it start?
Ok so it's the correct part number just flashed to the latest part number.. Will the starter engage if so will it start with starting fluid? It sounds like a bad PCM and it will need to be replaced..
If it was starting fine until you replaced it then it's likely a bad PCM.. Is the check engine light on? If you have a code reader can you see what codes it has? Or try cycling the key 3 times to see if any appear in the odometer..
And will it start with starting fluid?
I thought I read it would start when you pressed on the PCM connector which would indicate a broken PC board. Did it have any codes? And have you tried any starting fluid? Does it have spark?
Do you have a test light? See if the coil has 12v on the green wire and a ground pulse on the other when starting..
If your getting a No Bus then a module is locking down the BUS communications and you will need to start by seeing what codes and what modules aren't responding on the BUS with a scantool like the DRBIII I would use on your vehicle at the dealership..
Do you still see NO BUS when you disconnect the PCM?
You can check the 12v with a meter but not the ground pulse, a test light will be needed for that.. If the new PCM doesn't show NO BUS then that issue maybe fixed.. But now why won't it start.. If it started with starting fluid I would start with testing the fuel pump.. If it didn't it's likely no spark which could be a bad PCM or bad crankshaft sensor..
Good morning and sorry for the delay!!
Before you replaced the crankshaft sensor did you test the coil? Did it have 12v and ground pulse? To be honest at this point the easiest way to see what's going on is to connect a scantool and see if the PCM is coming on and if it's recieving crankshaft signal and what codes are in the system...
The scantool I would use here at dealership is the DRBIII, if you can borrow/rent/buy one we would know what's wrong in minutes instead of trying on parts and wasting time and money...
Let me know what you find,