jlv wrote:Do you know about all the 3G TCU upgrade problems (it locks up and causes the 12V battery to drain)?
Do YOU know about all the 3G TCU "fixes"?
Your post would've been more useful if you'd given a link to some of them.
I found a useful video here:here
and a photo of the fuse location to pull here
. Pulling the fuse, waiting ~5 minutes, and reinserting it seems to have reawakened my Leaf's TCU. This was far easier than scheduling and attending a dealer service call, which was the remedy proposed by Nissan's Customer Service folks.