Battery and brake light will not go off
First it think you may need to check your drive belt,if it is good,may need to check battery,alternator,brke,s light would be one to come on when power is low,i would think.
You may just remove your positive cable for a few minute,s and reset ecm,may fix your problem,but if light,s return i would think it is your belt,alternator,or battery.
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