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Hello .I'm new as of today. I have owned 2004 thru 2015 prius's .I'm driving a 2007 and rebuilding a 2010 . I have many questions about electrical switches that go from engine to electrical motors to both to engine only. Is there a switch or computer that does all this??? I start it 2007 I drive it. As soon as it at a operating temperature a red car with a exclamation point shows up on controls screen and car begins to free wheel.. but if I unplug the whit main battery plug in trunk I can drive again...so I know it's not a broken hard part....its gotta be a switch that tells each type of engine when and where to run....also the back seat battery fan started blowing . I hope someone has had this issue n knows the switch or ecm to buy. Transmission is serviced n cars at 180k.the dash quit for 2nd time so lost my cruise too 150$ to fix...but I unplug the starting battery main white plug 3 seconds and car goes from free wheeling to in gear and rolling. Got ideas
 
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