Brake system power with Battery disconnected
I have a 2016 Ford Focus 2.0 L Hatchback, the dealer installed the StaY n Play Duo braking system. Unfortunately he did not install a battery disconnect, he insisted the brake would not work if he di...
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As far as removing power from the car itself, it doesn't matter which cable you disconnect from the battery. It sounds like your dealer installed the Stay-n-Play power so it's directly wired to the battery positive terminal, so as long as you don't disturb that connection and leave the negative connected, it'll work ok. Just install a battery switch on the positive side that disconnects everything else.
