1. Disconnect the negative terminal of your car's battery. This will cut off the power supply to the computer and allow it to reset.
2. Wait at least 15 minutes before reconnecting the negative terminal. This gives the computer time to fully reset.
3. Once you have reconnected the negative terminal, start your car as normal. The computer should now be reset.
If you continue to experience problems after resetting the computer, you may need to take your car to a mechanic for further diagnosis.