Yep, it's fixed!
I finally made time to remove the VIC. I had a friend reflow the solder connections as I didn't have a soldering iron small enough. (Darn, those pins are SMALL!) No error message since. Thanks to the OP and everyone else for their input.
'96 ZJ, 4.0L, 42RE, NP242, stock D30 and D35-LS w/ 3.73, 4-1/2" lift, 32" BFG ATs, Magnaflow, JKS track bars and disconnects, spare tire carrier, Optima red top, ROLA roof rack, KC SlimLite driving lights, CB and Yaesu ham radios, GPS