What do I do if my electronic throttle control light comes on?
Solution: Stop driving your vehicle and have it towed to your mechanic. There, the first step will be to scan the engine computer for a trouble code. This should point your mechanic in the right direction. If there is no code, then a check of the sensors, relays, and wiring in the system should identify the problem.
What would cause the throttle control light to come on?
It is caused by an intermittent loss or disruption of the electronic signal from the gas pedal to the throttle. Your throttle will operate normally some of the time, but at other random times it will accelerate either not enough, or too much.
What causes throttle body malfunction?
Dirt and grime can build up inside the part’s housing (some mechanics call this “coking”) causing an interruption in air-fuel flow. Similar to dirt and grime, carbon deposits can also create an uneven surface inside the walls of the throttle body, which disrupts the atomization of the air-fuel mixture.
When to see the electronic throttle control light?
The only other time you should see the electronic throttle control light is when you turn on your vehicle. At this point, your vehicle is completing a system check, and when everything checks out, the light should turn off.
Why does the Check Engine light come on when throttle body is bad?
As soon as the car’s onboard computer detects a problem with the throttle body signal, it will cause the check engine light to illuminate. The check engine light also comes on due to several other reasons, which is why we recommend to visit an auto specialist and have the car scanned for any trouble codes when it pops up on your dashboard.
What does the Check Engine light mean in a car?
The check engine light can indicate many issues within a car including a faulty throttle body. In more modern cars, an electronic throttle control (ETC) constantly monitors throttle body performance. Any problem detected with it will turn on the check engine light.
What are the symptoms of a bad throttle body?
A bad throttle body may cause stalling in the vehicle, misfiring, electrical problems, high or poor idle, and improper throttle stop. Issues such as grime and dirt deposits or vacuum leaks can also cause problems to the throttle body. Below, you will find some further information about throttle body diagnostics.