Hello,
I posted here awhile back about my problem with my '93 Intrepid. It will randomly drop into second gear and the speedometer drops to 0. It stays this way anywhere from less than a second to around thirty seconds then goes back to normal. The output speed sensor has been replaced my mechanic has gone over everything he can think of. The odd thing is that, up until now, it has never produced any error codes.
After a trip home where it did this 6-8 times, I tried the key trick just for the heck of it. It got 12 66 55. So I took it to the mechanic today so he could check it out with his code reader. The reader said there were no error codes. We tried the key trick and 66 was still there. He was able to look up 66 but is not sure exactly what circumstances would produce this code.
BTW, does anyone have a definitive answer to how long it takes for the code 12 to clear and what specifically triggers it? I think I might have an interruption of power somewhere and the code 12 might also be a clue.
Thanks for any help, DSF