Vehicle is 1996 LX450. Ive had an issue with my AC for quite awhile and Ive replaced all three amplifiers and I have a new front blower motor and ac control panel. And I have tested my rear blower motor under the passenger seat and I know its bad, but I didnt care because I would be satisfied with just the front AC working. My question is if the rear blower/motor isnt working would that have an impact on the rest of the AC components?