how to reset car computer without disconnecting battery

Open the hood and disconnect the battery. If its a very old one then the computer will not be ready to operate when restarted.

How To Reset Car Computer Without Disconnecting Battery Step By Step

Start the vehicle and perform a test run.

. Clean the battery and its terminals using water and baking soda. What youll need to reset a car computer without disconnecting battery. Clean any corrosion off of the battery and terminals with a can of spray-on battery cleaner.

Reinstall the fuse and reconnect the battery terminal. Remove the MINUS terminal from the battery for 3 minutes the computer. Reinstall the fuse and reconnect the battery terminal.

Turn the headlight switch on. Disconnect the power to the computer by loosening the negative battery terminal and pulling it off. If your cars computer is acting up you can reset it by following these steps.

Make sure you have removed the cover. One of the more common ways that people go about resetting their vehicles check engine light is by disconnecting the battery but this can be a huge mistake. Answer 1 of 2.

In general to reset the car computer you need. Search the two fuses one with Backup and one with ECU. Start the vehicle and perform a.

Its usually near the drivers seat and is rectangular. Open up the hood. Remove The Fuse Cover Step 3.

How To Reset Car Computer Without Disconnecting Battery 31 Step 1. Clean the battery posts and terminals with the post and terminal cleaning tool so you have a good connection when youre done. Here is the whole process of how you can reset a car computer without disconnecting battery.

Select the fuse that is labeled ECM and remove this fuse. Locate the cars fuse box. Once everything is ready switch the car back on and inspect the check engine light.

And bind them with insulating tape. 2 After cutting power leave it off for 10 seconds before replacing the fuse and starting your car again. After the 45-min wait restore the battery and reconnect all the terminals.

Leave The Fuses And Reinstall Step. Disconnect the negative battery cable and then the positive cable with a combination wrench. Wait for 5 minutes for the old data to get erased.

Remove Fuses Step 4. How to Reset a Car Computer. Using a combination wrench disconnect the negative and positive battery cables.

Take the cover and put it back. Answer 1 of 7. 1 Start by cutting power to your car- most people will just pull the fuse.

Disconnect the negative and positive battery cables by a combination wrench. Go to your fuse box in your car and look at the diagram. With the post and terminal cleaning tool clean the battery posts and terminals to ensure.

It depends on the car model. It also depends on how long you have been driving your car. Remove the positive terminal cable from the battery using your pliers or wrench.

Wait about 10 minutes and reinstall the two fuses. This will drain all the electricity out of. On some cars however the best way to cut power is to disconnect the battery.

Locate the cars fuse box and remove the fuse. Locate the computer in your car. This is called bouncing and this is what resets your car.

Keep the car disconnected like this for two to three minutes to clear the computers memory. Here is a step by step guide on how to reset car computer after replacing battery. Whereas if its new and well-maintained it should start up quite nicely in case you need to test drive within 0-500 miles in some cases 0-1000 of the last time it ran.

Ensure to remove all rust and rinse the battery after cleaning to clean off all the solution. Disconnecting the battery can cause all sorts of problems that you. There should be a cover showing the fuse and vehicle amperage information.

Its usually a small button located on one of the corners of the computer. Hold the positive cable against the end of the negative cable in a way that wont touch the battery. 4 How To Reset Car Computer Without Disconnecting Battery.

Open The Hood And Find The Cars Fuse Box Step 2. Warm up the engine to operating temperature preferably on the move. Spray on the battery to remove corrosion and terminals.

Then find the reset button on the computer. Finally press and hold the button for about 10 seconds. You should see the word reset appear on the computer screen.

Locate the cars fuse box and remove the fuse. A pair of pliers. With a can of spray-on battery cleaner remove any corrosion from the battery and terminals.

Reset Car Computer After Replacing Battery