We plan on going to the drive-in this weekend and want to know how to override the shutdown mode when in the ac position?

 

Unhook the BMS sensor ring from the battery?

 

I stopped by the dealer, coincidentally next to the drive-in, and became a topic of about 4 techs, but with no resolution. What was funny, they'd never been asked that question before. I guess no other Ford owners go to the drive-in.

 

My truck usually makes it through the first movie then goes into battery saver mode. I just park in the back and let it idle for a bit during the second movie and I'm usually good to go. We go to the drivins usually 3 or 4 times a summer!

 

I was just testing how long it would stay on and only lasted 15 minutes. Truck needs to be started so the radio comes back on.

 

BMS sensor ring?

 

You will need to disconnect the -(negative) battery cable.
.

 

dunno if it'll do what you want but it detects current drain and puts the truck into battery saver mode..

 

You can disconnect the sensor. But i highly recommend running a volt meter from the battery into the cab so you can monitor your voltage so you dont let your battery go dead