That actually sounds like the CANBus pins on the new TCU might be shorted or something similar. If any one device on the loop messes up the impedance it causes comm errors for everything on the loop and triggers DTCs. Nothing actually breaks most of the time but it freaks out as expected. I've seen ...

It won't. All it does is set the regen load to a higher value. It's no different than pushing in the brake pedal about the same amount. It doesn't even get you "more" power back, it just does it at a faster rate. Some cars like the old BMW electric, drive with one foot and will come to a f...

So possibly a contact you can short to fix it.

What DTC does it post?

The modem module lists these frequencies: 706.5-713.5 709-711 829-844 826.4-846.6 1720-1745 1850.7-1909.3 1860-1900 1852.4-1907.6 So a multi band antenna that covers 700/850/1700/1900 would work. 850 and 1900 are probably more important for 3G fallback but now that ATT has really started cutting are...

The tag on my antenna appears to show part # NL2T-19K351-AB The end of that seems to match other antennas. Really any antenna that works on the right frequencies and has the right connector should be fine. Some adhesive antenna that supports 700MHz and 1700MHz would likely work on most areas. You co...

Something to keep in mind, though I wonder how likely it is to be inexplicably "out of stock" when you try to order it.

CCS plug is on it's way. Finally figured out why the CCS harness looks so weird in component views and diagrams - I thought they had spliced in an additional socket on the harness and in reality they took the end that was going to the TCM and routed it to the EVCC with a variant of the same connecto...

At this point I have all components with the exception of the ADM3052 CAN Transceiver chips - but I just got confirmation they shipped out from Shenzhen. Not sure how long it will take them to get here but once they do, I can reflow the three SMD chips on the boards and then start hand soldering the...

At this point, the largest open questions relate to the specs of the CCS port. There are 2 thermistors (one under the AC plug and one under the DC plug), wires that control the lock actuator and wires that provide feedback on the lock state. At this point I don't know the specs on the latch hardware...