I am trying to help a friend with their '99 Voyager. The IC is completely dead and the CEL is on. He told me the problem started out being intermittent, but now is constant. He initially took it to the dealer, and here is what the repair ticket says: "Found codes P1698, P1695, P0125, P0743. Checked powers and grounds at TCM, all good. TCM BCM nonresponsive. Further diagnosis required."

I started with the battery. The dealer had cleaned the terminals well, and the battery tested good for me. The only code present was the P0743 (TCC circuit). I cleared the code, and when I started the van, the CEL was on immediately, and the P0743 was back. That's all the further we went, as it's about 20*F here, and my garage is unheated.

The van starts and runs well. Has anyone seen these particular symptoms? Would they point to cracked solder joints on the IC? Any advice appreciated!