I have a friend that has a 05 lly 5speed went to a concert and went to go home and all he has is reverse no forward gears even in manual .he unhooked his batteries didn't help installed new neutral safety switch on trans . same thing. unplug grey connector at tcm . still have reverse but no drive . it was driving fine before no problems. has rpm and input speed / turbine rpm any help would be great all it says range inhibit