OK..for the last 18 months or so about once every 4 months my 2 indicator lights would blink for the fresh air and A/C buttons, it would do it for about 3 days........the fan would not speed up on heat or A/C and then after the 3 days it would reset and alllll would be fine for another 4 months. Well..now its been blinking on every start-up for the last 2 weeks and the only way to have the fan speed up is manually putting switches for the fan speed or the temp up to max, otherwise the fan stays on "low"! What could be wrong in the system that I could fix? Would an OBD II scan pick up anything??
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