i have a question. yesterday when i went to go start my car it didnt start when i turned the key it just made a quick click noise. it wasnt turning over. when i have my key in the on position my lights work but when i go to start it everything shuts off including my interior light. i go unplug the battery then the interior light comes back on but as soon as i tried to start it the same thing happened. so i went and unplugged my ecu and plugged it back in then i went to go start it and it started fine with no problem. is the ecu or what could it be?

 

anyone???

 

could be starter..
or your main relay