Chrysler Repair: where do i find a list of check engine light diagnostic codes, plymoth, engine controller


Question
I am wondering if there is a way you could tell me a website or another way to find the diagnostic codes emitted by the check engine light of my 91 plymoth acclaim 2.5L automatic. I am lost. The car wont turn over and the check engine light is blinking. I cant figure out the code but if i had a list i could probably figure it out thank you very much for your expertise. i am looking for a list of codes. thank you again

Answer
Hi Greg
Here is my standard response on codes:
"The most useful thing to do would be to try to get the fault codes that are likely stored in the engine controller memory to readout. Try using the ignition key: turn it "on-off-on-off-on" and leave it "on" (doing this quickly, no longer than 5 seconds). Then watch the 'check engine' light to begin flashing, then pause, flashing, pause, etc. Count the number of flashes before each pause and keep track of the numbers. Repeat the readout and verify the counts are correct. Then group them in pairs in the order that they came out, thus forming two digit numbers. You may notice that the pause is shorter between the digits of a given number, and longer between the numbers themselves. Then send me a 'follow-up' question telling me the results of your readout. By the way, 55 will be the last number (two groups of 5 flashes each) and that is the code for "end of readout".
I have the troubleshooting manual for the 2.5L engine and we can look up the possibilities of what is wrong based upon what fault codes you show.  I also own a 2.5 myself.
There is also an essay on fault codes at the site:
http://www.allpar.com/fix/codes.html
which gives the meaning of the code numbers. But then you need to get specific info for what exactly might be the diagnostic tests or parts to replace to complete the repair."
Roland