Will disconnecting the positive battery cable reset computer?
Will disconnecting the positive battery cable reset computer?
While disconnecting the battery will not permanently damage your vehicle’s computer, it can cause it to function differently. That’s because, if you disconnect your battery for long enough to reset the computer, it may cause the processor to forget everything it has learned.
Do you disconnect positive or negative battery terminals?
If, however, you have both terminals connected and your wrench is on the positive terminal and you contact ground….PREPARE FOR SPARKS/FIRE/WELDING. Be safe: always disconnect negative first. Disconnected either terminal will prevent drain, as stated already. A battery tender is another safe way to maintain the battery.
Why is there no current on the negative terminal?
If you remove the negative clamp and inadvertently complete a circuit to ground, there will be no current flow because the ground clamp is already grounded. Subsequent shorting of the positive terminal to ground will then produce no current flow because the current has no return path to the negative post.
What happens if both battery terminals are connected?
If both battery terminals are connected and you’re on the negative terminal, it’s just ground and nothing happens. If, however, you have both terminals connected and your wrench is on the positive terminal and you contact ground….PREPARE FOR SPARKS/FIRE/WELDING.
How do you remove a positive terminal cable from a computer?
Remove the positive terminal cable from the battery using your pliers or wrench. Go to your fuse box in your car, and look at the diagram. Select the fuse that is labeled “ECM” and remove this fuse. Keep the car disconnected like this for two to three minutes to clear the computer’s memory.
If, however, you have both terminals connected and your wrench is on the positive terminal and you contact ground….PREPARE FOR SPARKS/FIRE/WELDING. Be safe: always disconnect negative first. Disconnected either terminal will prevent drain, as stated already. A battery tender is another safe way to maintain the battery.
Which is battery terminal do you take off first?
Proper battery removal ensures your safety and keeps your vehicle’s electrical systems intact. This short guide tells you what you need to know about disconnecting your battery. Disconnecting a car battery is fairly easy, but following the proper order is critical for a safe disconnection. First things first – your vehicle should be off.
If you remove the negative clamp and inadvertently complete a circuit to ground, there will be no current flow because the ground clamp is already grounded. Subsequent shorting of the positive terminal to ground will then produce no current flow because the current has no return path to the negative post.
What happens when you short the positive terminal?
Subsequent shorting of the positive terminal to ground will then produce no current flow because the current has no return path to the negative post. And, of course, always reconnect the ground last.
