What happens when you hook up jumper cables wrong?

What happens when you hook up jumper cables wrong?

The next day I got a friend to help me jump it. He put the cables on wrong and when we put them on the right way, the car wouldn’t start. I had it towed to mechanic. They said they didn’t know exactly what was damaged but the ECM was probably blown.

What happens if you hook a battery up the wrong way?

Depending on how long it was connected the wrong way the battery may survive and just need charging but the chances are it needs replacing. You would have also most certainly blown some fuses, look for some big ‘mega’ fuses connected directly to the positive cable. Not the answer you’re looking for?

Why are there fuses on the battery post?

Fuses are there for a reason. If your damaged you will blow the fuse or a fuse again. The ’07 should be on the battery post I believe. IF YOU HAVE A 2007 CLASSIC: The fusible link is a smaller cable that goes from your positive battery terminal to your alternator. It is designed to burn up if it gets too hot, from too much resistance.

How does a red jumper cable work on a dead battery?

One end of the red (positive) jumper cable connects to the positive terminal of the dead battery. The other end of the red cable connects to the positive terminal of the good battery. One end of the black (negative) jumper cable connects to the negative battery terminal of the good battery.

What happens if you hook up a jumper cable wrong?

You might cause personal injury and/or damage to your car if you accidentally hook your jumper cables up wrong. Fuses (and/or fusible links) act as circuit protection devices between the battery and the vehicle’s electrical system.

Depending on how long it was connected the wrong way the battery may survive and just need charging but the chances are it needs replacing. You would have also most certainly blown some fuses, look for some big ‘mega’ fuses connected directly to the positive cable. Not the answer you’re looking for?

Where is the 120 amp fuse on my car?

Look under the dash at the coin holder, you will have to lay on your back. The 120 amp fuse is the 82620-33030 numbered one. The car will start with this fuse open, but you will have weird symptoms on the dash and the battery will not be charge as the alternator isn’t connected to the battery. Accident w/frame damage, got rid of car.

One end of the red (positive) jumper cable connects to the positive terminal of the dead battery. The other end of the red cable connects to the positive terminal of the good battery. One end of the black (negative) jumper cable connects to the negative battery terminal of the good battery.

Is it OK to connect negative jumper cable to dead car?

, Restoration, Customization, Performance Applications, Welding & Metalwork. This is why you always connect Negative Jumper Cable Lead to Chassis, Engine or Frame & never to the dead car’s battery. Vehicles should never be touching each other during this procedure, thus no damage would occur.

What happens if you accidentally connect the jumper to the car?

In between, you might have blown fuses, burnt wiring and/or connectors, or have created intermittent fault conditions making it difficult or impossible to diagnose. The main danger is to the battery in either or both vehicles.

Why did I Cross the jumper cable on my minivan?

I hooked up one side of cables to my wife’s car and turned around. Apparently, this was the critical moment. I must not have been paying attention, and swapped the cables ends when I turned around. Then, I connected the leads to the battery on my Tucson in the wrong positions. I turned on the minivan. The van started fine.

What happens if you connect the jumper cable backwards?

Car owners may accidentally connect the jumper cables in reverse order or install the battery backward, which causes the vehicle to no longer start. The purpose of this troubleshooting guide is to help answer the following questions: Hooked battery up backward now car won’t start.

Can a car from 2003 have jumper cables wrong?

I assumed a car from 2003 would have fuses to prevent totaling your car by connecting jumper cables wrong but the mechanic said otherwise. Is there any reason I shouldn’t call it a loss and junk the car?

Can a negative jumper cable be connected to a dead battery?

You can also fuse the rectifiers in your alternator/charging system, meaning Replacement Parts. This is why you always connect Negative Jumper Cable Lead to Chassis, Engine or Frame & never to the dead car’s battery. Vehicles should never be touching each other during this procedure, thus no damage would occur.

What does a mechanic say about jumper cables?

Hooked jumper cables up wrong. Mechanic says car is unfixable [closed] Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post . Closed 4 years ago. I have a 2003 Volkswagon Passat.

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