I felt that my mother's transmission problems were not related to the transmission. Oddly, an independent ABS light came on (the problem was with the front tires, not the rear tires, but I went ahead and replaced all the relevant sensors, including this one, for the rear). Once I installed this sensor, their uncomfortable switching was gone. He also had a problem with the last freeway gear, but the failure was not related to a gearbox problem. The diagnostics showed an issue with the solenoid…