Leaderboard

So... I left the car's battery unplugged for several days and unplugged the harness connection on the top of the transmission. All the contacts were shiny and clean. As I was connecting the battery I noticed a ground wire I had left unattached when I replaced the battery harness a day prior to my problem. Had I just reset the TCU or do you think the unconnected ground wire was the culprit? BTW, the Power light works fine now. I suppose I should check the codes but the transmission is currently working as normal now.

Fits like a glove. Cheapo unit from Amazon. Less than $100. Works pretty well it seems too.