So long story short our New beetle sat for months and the battery completely drained and has lost communication with the TCM. You get no gears or numbers under the mileage on the tach and it's obviously in some sort of limp mode. So we tried to go about messing with the TCM via VCDS software but the only thing it would do is tell us that it was unable to communicate with the tcm with code 01315, 49-00. What would be our next course of action? Were going to start checking fuses next but should I look into replacing the TCM?