Emergency... trunk issue :(

[CamaroFred]

Originally Posted by Netraa

The car was not grounded right up until he put the jumper cables on the negative terminal... this grounded the car through the cable to the other vehicle's ground.

I would not suggest trying to start a car like this, but it will hold enough current to pop the trunk.

If you have the heavy duty cables there is nothing wrong with starting the car using them.
Tow trucks do it all the time.

Here in winterland, crawling though a snowstorm, lights on, defroster on high, can easily suck the life out of a battery.

[InFiD3ViL]

Originally Posted by Abelardoo_12

Im assuming you can't crawl into the trunk through the back seat due to way you left the spare tire ? Either way all you have to do is use jumper cables through the terminals under the hood to have power and just use the button to open the trunk, you dont have to start the car like that just to open the trunk

Wow. That is a problem.

Probably the best solution ^^^

[blake-b]

I didn't know the jumper cables would work with the negative disconnected. Nice to know!

[94z28inok]

Every car has tons of ground circuits all connected to, wait for it, The body. The jumper lug under the hood is connected to the main battery cable that runs to all of the positive circuits in the car/fuse boxes etc. Each polarity is all interconnected with every system. that circuit only breaks when a switch, relay, etc prevents its path. So, even with absolutely no battery, once connected to the jumper lugs, or even the positive lug and any metal part of the car, the circuits will all function. With jumper cables large enough to carry the amperage, the car would start and run off them with no battery in the car.

[rberns]

Samething happened to me. disconnected battery and accidently closed the lid. My subs are in the way to reach around to pull on the trunk release. Had to pull the battery out of my other car and use jumper cables to pop the trunk open.