Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Ok, that would be the check engine light. what all this means, there is a problem with the electronic throttle control system. this vehicle doesnt have a throttle cable. with the check engine light being on, the first place to start is to have the system scanned for codes. this would be where the diag starts. this would give us a trouble code. there some different things that can cause a problem with the electronic throttle, which includes poor connections, bad throttle body, a peddle assembly and possibly even a computer problem. this is why a trouble code is so important. there are some parts stores that will scan for free. here is how the system works.
The throttle actuator control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs the following functions:
The TAC system includes the following components:
When the PCM detects a condition with the TAC system, the PCM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
If there is anything you dont understand, please ask me to explain!!