1. Open the hood of your vehicle: Locate the safety release latch on the front of your hood and pull it up to release the hood. Lift the hood and prop it open with the support rod you just pulled out.
2. Locate the negative battery terminal: The negative battery terminal is typically marked with a black or white band and is usually bolted to the body or chassis of the car.
3. Disconnect the negative battery terminal: Use a wrench or socket set to loosen and remove the nut holding the negative battery cable to the terminal. Remove the cable from the terminal and set it aside.
4. Wait about 30 minutes. This allows the power remaining in the computer's capacitors time to dissipate, resetting it.
5. Reconnect the battery terminal. Reconnect the negative battery cable to the terminal and replace the nut. Tighten the nut until it is snug.
Option 2: Use the OBDII Port
1. Locate the OBDII port: The OBDII port is typically under the dashboard, near the steering wheel. It is usually a 16-pin port with a black plastic cover.
2. Connect an OBDII scanner: Plug an OBDII scanner into the port. These can be found at most auto parts stores.
3. Turn on the ignition: Turn the ignition switch to the "ON" position, but don't start the engine.
4. Select the "Reset ECU" option: Use the scanner to navigate through the menu options and select the "Reset ECU" or "Reset Computer" option. This option may be under different names, depending on the scanner.
5. Follow the prompts on the scanner. The scanner will guide you through the reset process.
6. Turn off the ignition: Once the reset process is complete, turn the ignition switch to the "OFF" position.
7. Start the engine: Start the engine and check if the problem has been resolved.
Please note: Resetting the computer may clear any stored fault codes, so they may disappear if you scan for them again. However, if there is a persistent issue with your vehicle, the fault code will likely reappear after driving for some time.
If the computer reset does not solve the problem, it is recommended that you diagnose and repair the underlying issue. If needed, you can seek professional assistance from a mechanic familiar with your vehicle's model and year.
