Five days ago I could not get my car to start. The starter would not even attempt to crank the engine. When I turned the key, everything would dim like the starter was going to start but it wouldn't crank. I replaced the battery, still nothing. I thought it was the starter and then replaced the starter. Still nothing. I also checked the fuses and relays by swaping the starter replay with the horn and all fuses and relays work fine. Finally, my friend Bill looked at the car on late Saturday andyelled at me for changing parts when I had not done a proper diagnose of the problem. Bill showed me that the problem was not the starter by checking all of the circuits with a circuit tester (everything gets power) and he also get the stater going by putting power to the starter solinoid. From this test, he beleives that the problem is the PCM (Powertrain Computer Module or engine computer) is dead. The reason he thinks this is because even by 'making' the starter crank by putting power on the starter solinoid, there is no fuel being pumped or spark being generated and if the PCM is dead then it will not send any power to the relays to get all of thoes things going. If fuel wa being pumped we should have smelled the engine starting to flood but this does not happen.
Ok, so yesterday I get another PCM that is SUPPOSED to be from the same make, model and year as my PCM but the software upgrade version does not match. I am not sure of the part number either now.I did not think it mattered, put it in and got PO513 codes from the computer. (Before I would get no codes from the computer.) I looked up the PO513 and it seems to be something about by passing the remote car alarm execpt I never had one. It now appears that I was wrong and it does matter about the software upgrade for the car computer. ( At least my car is now reading a code from a car computer, even if the computer is the wrong one.)
So, it appears now that I must match up or find a car computer (PCM) that will work in my car.
The old PCM computer part number is P05034199AD.
The old PCM computer software is P05034195AF ( The 4195AF is also bold on the top edge of the PCM.)
1: I see from the lists that there are parts with the PO5034199AD but I do not know which softwarre updates will work with my car. Is there any kind of chart or other information that will tell me this or must I match both exactly?
2: After the PCM is installed, is there any kind of registration or software update process with the VIN that must be done? It looks like to me that some of the PCM proceedures have instructions for putting in a VIN number into the PCM. Is this needed to get the PCM to work or can I just install the PCM and the car should start up?
3: If I get the correct PN (P05034199AD) does it matter what software update is running in it?
Other than this problem, the car was running fine and I hope to get it running again.
Any help would be appreciated.
Louis J. Desy Jr.