I bought a new battery for my 2015 Kia Soul after the old one died. Right now, nothing is connected and everything is dead. In order to give the car some power, I must reset the computer. No electricity, lights, or anything else at the moment. It appears as though the battery is disconnected. To for the car to “wake up,” you need to reset something.
In This Article...
What happens when the automobile computer is reset?
Resetting your ECU is a common misconception. It is not actually required to reset your engine control unit (ECU) after altering your engine. However, you may reset your ECU to rectify a broken check engine light or return your vehicle to its factory settings.
Continue with these steps if you still wish to reset your ECU:
- Step 1: Drive your automobile for around 15 minutes to get it warmed up to the temperature where it can operate normally.
- Step 2: Lift the hood to access the car battery’s negative lead. Make sure the cable doesn’t come into contact with any metal.
- Step three is to give the car at least five minutes to sit.
- Step 4: Push the break and maintain pressure for at least 20 seconds.
- Reconnect the cable in step 5 and shut the hood.
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Will the computer be reset if the battery is disconnected?
A. The age and kind of the car’s ECU are key factors. Disconnecting the battery may reset the system in some older vehicles, but in the majority of modern vehicles, it usually has no effect other than possibly resetting the clock and radio station presets.
In a contemporary car, if you accelerate quickly, the ECU will automatically regulate the air temperature, engine temperature, and fuel usage to the best of its ability based on the driving conditions.
For auto gearboxes, certain ECUs offer “adaptive learn” capabilities. They can modify the points at which they shift gears and sharpen throttle reactions if they notice a pattern of aggressive driving.
How long does the car’s computer take to restart?
It may take up to two weeks for the light to automatically reset when you have an EVAP code. Nevertheless, you can quickly reset it by unplugging the battery for at least 30 seconds. Remember that doing this will also remove any additional codes the machine could have.
How is the 2015 Kia Soul reset?
On a Kia Soul, how do you reset the computer? You can observe how long it will take for the engine to start by removing the key from the ignition. Reinstall the key and wait three seconds for the dashboard lights to dim. Your key has also been reset, along with your alarm and computer.
How can an ECU be reset without the battery being removed?
Easy Method to Reset ECU without Disconnecting the Battery
- Push the Engine Start button TWICE while holding the key in your pocket or car (so the car is fully on, but not started)
- When the car is “ON” for three seconds (again, NOT started), press and release the gas pedal fully five times in quick succession.
How can the check engine light on a Kia Soul be turned off?
How Can the Check Engine Light Be Reset?
- Deactivate your ignition.
- Put on your gloves and safety glasses.
- The negative terminal should be found.
- Pull the connector from the battery while holding it to the side for 30 to 60 seconds after using a wrench to loosen the nut on the negative terminal.
- With your wrench, reattach the cable and tighten it.
How much does resetting a car’s computer cost?
That is annoying! You should verify with your dealer and warranty to see if this kind of glitching is covered.
You should take your automobile to the dealer or a mechanic to have it fixed if your warranty has expired. Depending on how much labor is required to fix it and the parts required, the cost may change. Typically, this can cost anything from $80 to $180.
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When resetting a computer, how long do you disconnect the battery?
Yes, one way to reset the check engine light is to disconnect the engine. The majority of sources advise leaving the battery disconnected for at least 15 minutes to ensure the computer forgets the code before you reconnect the battery because some of the electrical current is kept in the computer for some time afterward.
Other experts advise draining any remaining electricity on the computer after removing the engine by turning on the light switch for a few minutes (the lights won’t turn on).
Before you take this approach, keep in mind that there are certain drawbacks to this way of turning off your check engine light. If your car was made after 1996 and you have access to one of these tools, such as this one available on Amazon, you can also use it to reset the fault codes if you’d prefer not to deal with those.
It’s never too late to start learning how to properly take care of and maintain your car. We value the time you invested in learning how to properly disconnect your battery. For whatever reason you need to disconnect it, be sure to hire a pro to ensure your safety and the safety of your belongings.
How can I exit limp mode on my Kia?
Find a secure area to pull over to as soon as limp mode appears. There are a few things you can attempt after stopping your car to try and reset the computer.
#1Check and Top Off Fluids
Checking your fluids should come first. You must be standing on level ground to do this. Check your gearbox fluid first with the engine running and the car in park.
This is probably the problem if it’s low. Take notice of the fluid’s color and fragrance when adjusting it to the right standards. Transmission fluid that is soiled or burned might also be problematic.
Once the fluid level has been reached, turn off the engine and reset the ECU of the vehicle as shown in #2 below.
#2Shut Off Engine and Restart
The next solution you can attempt is to turn off the engine and give it at least five minutes to rest. You can check the level of the engine oil and all other fluids within the car at this time. This brief resting period occasionally enables the computer to reboot and exit limp mode.
#3Clear Check Engine Light
Removing the battery cables is a third choice. The two cables should be pulled away from the battery and held together for 15 to 30 seconds. The computer will lose any remaining power from this and all stored codes will be forgotten. The same outcomes can be obtained more quickly and safely by clearing the codes with an OBD2 scanner.
Can you reset the computer by touching the battery cables together?
Computers now operate every machine around us and manage all of our jobs, thus it is crucial that we maintain them correctly. If you feel the need to, you can reset your car’s computer in a number of ways. In this article, we’ll go through how long the battery should be left unplugged, how to reset the car’s computer by tapping the terminals, and how to detach the battery. Follow along to learn more.
The car computer is believed to be totally reset if the battery is detached for an extended period of time, therefore you should only do this if you are extremely motivated to do so. Some may argue that 30 seconds is sufficient when it comes to the amount of time the battery has to be detached in order to reset the car computer, but if you want to be absolutely certain, keep it disconnected for at least 15 minutes.
The fact that some electrical current remains in the car’s computer for some time after disconnecting the battery has led several specialists and laypeople to propose this. To ensure that the automobile computer erases all of its codes and enters reset mode, leave the battery removed for at least 15 minutes.
Some individuals also advise leaving the headlights on while removing the battery because doing so may hasten the discharge of any leftover current. Turning on the car’s air conditioner, radio, brakes, or any other battery-operated device will actually help to hasten the discharging process. This depletes the capacitance-stored voltage in the car’s electrical system. This will speed up the process and enable the computer in your car to enter reset mode more quickly; you won’t even need to disconnect the battery for 15 minutes. Your automobile will stop retaining the lessons it had learned about your driving style and begin to learn new ones.
Yes, touching the positive and negative terminals makes the capacitors discharge manually, which causes the car computer to restart. In other words, even after you remove all remaining power stores from the system, it still has a certain amount of electrical currents.
The residual power is likewise depleted, and that too extremely quickly, when the positive and negative terminals of a car battery are brought close to one another. This procedure can be used to fully discharge a battery even after the battery has been taken out of the car. Without even being connected to the power supply, a little spark will be produced by the contact of these two opposite terminals. Any remaining battery charge will be lost as a result of this.
One thing to keep in mind is that touching the terminals of two devices that are electrically charged in opposition to one another could injure and damage an aftermarket system with an AMPS if it is linked to a power source.
Get a hold of the negative cable first while removing the cables from their positions, and then remove the positive cable. Wait a short while, then bring the two terminals together to reset the ECU. The capacitors in the computers will lose all of their stored energy if the positive and negative battery terminals are connected to each other for about five minutes. This will make the computers undergo a cold reboot. This is a relatively typical fix for the majority of automotive problems that owners encounter. Another consideration while using this method is to always use protective gloves or any other appropriate safety measure, and to refrain from contacting the battery terminals with bare hands.
The short response is maybe. Because there is some current that is still kept in the system, if you disconnect the battery from your car for a very brief period of time, it won’t do the work for you. In order to ensure that the retained current is released from the ECU, wait at least 15 minutes or longer after disconnecting the batteries from the engine and turning on the headlights and other accessories.
The portion of the ECM unit where the adaptive memory is kept is empty when the negative terminal of the battery is detached from it. Like in any RAM memory of a personal computer, for instance. The RAM memory is erased from the computer’s storage after you switch it off. In the case of an automobile, the ECM will once more have the fresh adaptive memory built every 3-6 drives or more.
The computer in the automobile won’t be harmed by disconnecting the battery, despite some people’s fears; but, it may operate differently as a result. This occurs because the system resets itself after forgetting everything it has learned. It’s true; while you drive, your car’s computer gathers new information on things like the best moments to shift, how you accelerate, and how the engine is producing combustion. The ECU may return to the first stage if left without power for a significant period of time, such as 10 to 15 minutes. This merely means that everything will be re-learned by your car. The engine can start to run a little rough, and the clutch and accelerator pedals may seem a little strange to you.
Any technique you think will work best for your car can be used to reset your can. Because it can vary from model to model, do extensive study before moving further with the reset procedure.
How can I reset my computer now that the battery has been changed?
We have now reached the most crucial section, where we will learn how to reset the car’s computer after changing the battery.
This chapter is ideal for you if you’ve changed your battery but your check engine light persists. Since we’ll provide some priceless knowledge on how to resolve this problem and enjoy your car. What then is the catch? A car battery can be reset in two different methods. One of these requires human labor, while the other entails tinkering with the diagnostic instrument. Which one performs best? Let’s investigate.
Remove The Positive Terminal
Removing the positive terminal from the battery is the simplest tip in the book for resetting an automobile computer. A tiny wrench will be required to access the bolt holding the battery clamp in place and remove the terminal.
Simply loosen the terminal using a tool that fits the size. The cable should then be removed so as not to touch the terminal.
After removing it, let the automobile rest in this position for five minutes. The computer will turn off and everything will drain if the automobile is left without electricity. To make sure that there is no remaining electricity in the system, it is also helpful to try turning on the radio or other devices that consume electricity.
Reconnect the battery cable to the terminal once the time has passed. As you tighten the clamp, ensure sure everything is operating as it should. The check engine light on the dash should be gone after completing this step, and all systems should be operational.
After replacing the battery, try resetting the car computer if this approach doesn’t work for you. Make sure you follow the next procedure.
Resetting A Car Computer With An OBD2 Scanner
After replacing the battery, this technique is ideal for resetting the car computer. By using this technique, you may be sure that your computer is reset and that any check engine or other error lights have been turned off. As a result, the automobile will run flawlessly and won’t have a check engine light on the dashboard. How can you go about doing this?
You’ll need a diagnostics tool in order to perform this activity. Likewise known as an OBD2 scanner. These scanners are widely accessible and may be purchased online for a low cost. You’ll have to spend extra money on a good OBD2 scanner. It’s worthwhile, though. You can diagnose a problem more quickly and easily the more options the scanner offers. Since the majority of inexpensive scanners just display error codes, you must search online for them.
The greatest tools are those that have a mobile app that can connect to your phone. After changing the battery, you won’t have any trouble resetting the auto computer thanks to this program.
Only your OBD2 port needs to be connected to the tool. Typically, this port is found underneath the steering wheel. You then launch the program and instruct it to search for codes. The software will display you any codes that are currently on your computer and give you the option to completely delete them.
After the data has been deleted, restart the vehicle. Recheck the tool’s scan of the vehicle. If the mistake still occurs, you probably have a more serious problem. Make sure you understand the codes, read them, and solve the problem. This video shows how the work is carried out.
Take Your Car To Be DiagnosedReset A Car Computer After Replacing Battery
The final option is to complete this task in a store. You can get your automobile diagnosed and the computer in your car reset after changing the battery at some businesses, but it will cost you some money.
You will have to pay between $50 and $150 for this service to delete and remove all the codes from your system. However, this does not imply that they won’t come back again. However, if a battery change caused a false positive check engine light, it should no longer be present.