What Is the Electronic Throttle Control System?

Once, cars were simply composed of many mechanical systems that worked together to help you steer, accelerate, and brake. Then, several of these components became hydraulic systems, such as power steering. Now, however, cars are slowly becoming a fusion of mechanical and hydraulic systems plus computers and electronic systems. This includes the electronic throttle control system, or ETCS.

The ETCS uses about six wires to electronically combine the gas pedal and the engine, replacing the older mechanical model. As you depress the gas pedal, the wires send electrical signals to rev the engine, leading to increased speed. Overall, electrical control systems can increase efficiency and lifespan of the parts while cutting down on maintenance and overall weight of the system. Additionally, researchers believe that less weight and higher accuracy through electronic control technology will increase fuel efficiency and reduce emissions.

However, this technology, also called drive-by-wire, x-by-wire, or even just by-wire, has its drawbacks. Many people are suspicious of this drive-by-wire technology because they say that the software can fail at any point in time, much like a random crash on your computer. Additionally, wiring can become corroded and faulty, leading to a short-circuit failure.

In fact, the recent Toyota sudden acceleration problems may be due in part to problems with the electronic throttle control system. Some people argue that short-circuiting the ECTS can lead to uncontrollable engine revving and acceleration. However, Toyota stated that this short-circuiting can cause other car types to suddenly accelerate as well, which does not make it unique to Toyota's brand.

Still, since neither Toyota nor the National Highway Traffic Safety Administration knows the exact root of the sudden acceleration problem, it is important for Toyota to explore all possibilities, including ECTS failure. This way, future sudden-acceleration incidences can hopefully be prevented.

If you have been injured due to a Toyota sudden-acceleration accident, you may be entitled to financial compensation to help you with your pain and suffering.