I'm going back and forth with the idea of springing for the electronic module and installing it as a gift for my daughter.I swear I tried that on my Wrangler and it didn't do anything. If you do it, let us know
Still the wire is so easy, I may try it just to prove if it will work or not.
Are you sure you disconnected the correct connector? I've seen several tutorials for Jeeps and Pacifica's they all show a little black module connected as part of the ground terminal to the battery. Connected to it is a several wire connector. I've seen it described as a current sensor for the battery, I'm guess being used with other things to determine if there is enough battery power to use the ECC. The old message ECC unavailable the battery is charging.