At this point, your vehicle is completing a system check, and when everything checks out, the light should turn off. ![]() The only other time you should see the electronic throttle control light is when you turn on your vehicle. When it’s not, the light turns on to let you know that there is a problem. Your electronic throttle control light monitors the throttle control system to ensure that everything works the way it should. Electronic Throttle Control Light Function While there are plenty of advantages to this, if everything isn’t working the way it should, then you’re not going to accelerate the way you should. While older vehicles use a cable that’s linked directly to the throttle body, most modern cars accomplish this feat through sensors and your vehicle’s ECM. The electronic throttle control system controls and monitors the position of the throttle. The throttle system includes the throttle body, accelerator pedal, and wirings. The electronic throttle control (ETC) light indicates that there is an issue with the throttle system. What Does The Electronic Throttle Control Light (ETC) Mean? ![]() That’s why vehicle manufacturers packed their vehicles full of sensors and an entire system to monitor your electronic throttle control.īut what does it mean when your throttle control light comes on, and what should you do? More importantly, is it safe to drive your vehicle, or do you need to take it straight to a repair shop? We’ll answer all those questions and more here. While this system allows for better air to fuel ratios for better fuel economy and engine performance, the tradeoff is that if a sensor or actuator breaks, you lose control of your throttle. But as technologies have advanced, physical linkages have been replaced with sensors and actuators. When you pushed the pedal, you opened the throttle body, and you increased the amount of air that enters your engine. ![]() Back in the day, your vehicle’s throttle body had a wire that connected to the pedal.
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