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HOW TO CLEAR CODES AND WARNING LIGHT WITH AN OBD2 READER FULL
HOW TO CLEAR CODES AND WARNING LIGHT WITH AN OBD2 READER CODE
HOW TO CLEAR CODES AND WARNING LIGHT WITH AN OBD2 READER PROFESSIONAL

They are widely available and affordable. You can easily check your car’s OBD2 codes yourself, but you’ll need an OBD2 scanner. If the light keeps coming back on, go get your car checked out. Keep in mind that check engine lights aren’t just there to annoy you. If you’ve reset the OBD2 codes without a scanner and notice that the check engine light is still on, this is a sign that there’s a serious problem that needs to get checked out by a professional. They use a memory device that stores these settings separately, so you always have a backup and the settings will load up automatically after the procedure. Some cars also built in modes that preserve your settings even if the ECU is drained of power. You’ll have to drive for a bit before it goes back to its usual state. Since your car is rebooting all of its electronics, the shifting in its automatic transmission won’t reset perfectly right away. Them most common problem you might encounter is with the transmission. This can take at least one drive cycle, so don’t worry if your car isn’t acting right as soon as you turn it back on. Your car needs to reset to all of its settings after the ECU is drained. In most cases, these issues aren’t much to worry about. This might also mean that your clock, radio, and drive settings are reset.

When power is restored, your car’s electronic settings will need to reboot. This happens because you have to drain all of the power from the ECU to reset the codes. Problems after Resetting OBD2 CodesĪlthough resetting OBD2 codes without a scanner is a fairly simple process, you might still notice a few minor issues once your car restarts. If the light comes back on within a day ofĬlearing OBD2 codes, this is a sign that you need to get your car checked outįor more serious problems.

HOW TO CLEAR CODES AND WARNING LIGHT WITH AN OBD2 READER FULL

This works on older cars that just use OBD1Ĭodes, but most cars made after around 1996 will require the full process Remember, simply unplugging your battery won’tīe enough to clear OBD2 codes. Repeat the procedure, making sure to hold down the horn until the ECU is drained of all power. If the check engine light is still on once the vehicle is warmed up, you likely didn’t drain the ECU fully. By the time your engine is warmed up, any warning lights should have turned off.

Turn the engine on and check for any lights on the console.

As always, check to see that the clamps are tightly latched to the terminals.

Clamp both of the cables back on the battery, starting with the red cable and then moving to the black one.

Although you don’t have to, it’s best to wait a minute or so to reconnect the battery.

This can take anywhere from 30 seconds to a minute, so keep pressing down on the horn until it stops working. The horn will use up any power that’s still in the circuit so that the ECU is fully drained. To do this, hold down on the horn on the steering wheel.

You’ll need to drain out any extra power that’s still left in the ECU.

Once you’ve removed the cables to the battery, you’ll need to cycle your ignition on and off.

Always make sure that the two cables well away from each other.

Perform the same procedure, but with the (+) cable.

You may need to use a wrench if it’s latched on tightly.

Remove the (-) cable from the battery.

Make sure your car is parked in a level area, then pop open the hood.

Resetting OBD2 codes without a scanner takes Here’s how you can easily clear your car’s OBD2 codes: Resetting OBD2 Codes

HOW TO CLEAR CODES AND WARNING LIGHT WITH AN OBD2 READER PROFESSIONAL

If this happens, then you should have your engine checked out by a professional to make sure that there isn’t a more serious issue. If there is a serious problem that needs fixing, the light will come back on soon after you’ve turned it off.

HOW TO CLEAR CODES AND WARNING LIGHT WITH AN OBD2 READER CODE

This could indicate a wide range of problems, including minor issues with your gas cap or significant problems with your transmission.Īlthough you can clear an OBD2 code without a scanner, turning the check engine light off is not always the safest solution.

OBD2 codes cause your check engine light turn on. It can be done in just a few minutes, and it won’t require any equipment, except for maybe a wrench.īut what exactly are OBD2 codes and why should you pay attention to them? It’s easy to clear OBD2 codes without a scanner in just a few simple steps.