I am having a problem with my m6 to a4 swap. The trans wont shift out of 1stit even when commanding it with hp tuners. I checked the voltage at the 20 way plug and everything seems right when compared to the voltage of a suburban of the same year except the range A, B, and C terminals (pins N, R, and P respectfully). They only show 10 volts as opposed to 12 as in the suburban. Would this cause my no shift issue?