This is similar to some others with a twist. First, I'm in limp mode...won't shift out of low gear. Also, can't shift from D or N to R or P unless I take my foot off the brake pedal. With the brake pedal depressed there seems to be a mechanical block to shifting to Reverse or Park but if I take my foot off the brake pedal it shifts easily. I've seen posts refering to sensors and relays but don't know what to think of this problem. Any tips? Oh, I haven't been able to check the fault codes yet.