Wouldn 't there be an analog voltage that we can measure at the side mirrors ? (the "control" voltage that must be sent to vary the dim level) I'm not quite sure how it works or which wire to check, but maybe we could compare 2012 to 2013 voltages ? Or we could manually vary the voltage and see if the mirror goes from bright to dim ? Just to see if it's a "hardware" or "coding" issue ?
Last edited by larrylotus; 08-20-2012 at 04:49 AM.