What battery terminal Do I disconnect to reset computer?
How to Reset a Car ComputerOpen up the hood.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.
Keep the car disconnected like this for two to three minutes to clear the computer’s memory..
Is it OK to just disconnect the negative terminal?
Disconnect the negative terminal. That way, you don’t risk a catastrophic short-circuit if you accidentally touch your spanner against the bodywork or a metal component whilst you’re removing the positive terminal. Disconnecting the neg terminal will be just as effective a method of isolating the battery.
What happens if you don’t disconnect the negative battery cable?
If you disconnect either terminal, then the system will be safe. However if you are disconnecting or connecting the positive terminal and touch your tool to the chassis you can cause a short and a spark which can cause the battery to explode.
What happens if you disconnect the positive terminal first?
If positive terminal is removed first then chances of a spark are more if this terminal touches the body through the metal spanner or wrench you are opening with is grounded accidentally and may end in flames because lot of combustible material is around. And chances of this accidental touch are very high.
Do I disconnect the positive or negative?
Always work on the negative terminal before the positive when you disconnect your battery. Grab a socket from your socket kit and hold it near, but not against, the nut on the negative terminal of your battery. Ascertain visually the socket size you’ll need to loosen the nut.