Now that you have made up your mind to reset your ECU system, just follow these instructions and be safe: Drive your car for around 15 minutes to bring it to its normal operating temperature. Now stop, open your car’s bonnet and remove the lead of earth from the battery.What to do if your ECU is not working?
Now stop, open your car’s bonnet and remove the lead of earth from the battery. Make sure that the end of the lead is not in contact with any other metal surface of your car Wait for 5 minutes. Depress the brake for around 20 seconds so as to completely discharge the capacitors of the ECU system through brake lights.How to reset the ECU on a Toyota 4Runner?
Toyota 4Runner, Tacoma and Tundra: How to Reset Your ECU. 1 Step 1 – Release the hood. Release the hood using the hood release by the driver's side footwell. Pull it to open the hood, then go to the front of ... 2 Step 2 – Remove negative battery terminal. 3 Step 3 – Re-install battery terminal.What is an ECU system and how does it work?
First of all, it is important to understand what an ECU system is and what it does in your car. Basically, your car’s ECU system intends to learn about your car’s engine as you drive. In this learning process, the ECU tracks tolerance changes of your car engine’s actuators and sensors.