[Al Skierkiewicz]

Tanner,
The condition you describe is a classic over current condition particularly in turns. However, the LED colors you report are not consistent with that condition. I would expect a steady ON RED indicator if the Jaguar was in a fault condition.

According to the Jaguar manual, a flashing yellow indicates a loss of CAN or servo control. That points back to the sidecar, it's power connector and wiring, or the cable between the sidecar and Crio. Since you did not indicate you are using CAN, I am guessing the other flashing yellow code do not apply. If you are using CAN, the flashing yellow can indicate CAN ID problems.