This is important to remember: your vehicle might still be drivable (somewhat) in limp-home mode, but it's limited in speed and acceleration to prevent serious damage to drivetrain components. So if you're searching for new Jetta cars for sale, it's important to take note of this. In addition, some Volkswagen vehicles equipped with an Electronic Stability Control (ESP) system may shut down entirely when the EPC program detects problems with the EPC management system. If your vehicle has an illuminated EPC light and is in limp-in mode, you need to take it to a dealer for diagnosis and repair as soon as you can. The EPC light could indicate a wide range of problems, some relatively minor and some more serious. Is It Safe To Drive With the EPC Light On? The gas pedal and throttle "talk to each other" wirelessly, and their status and positions are reported to the drivetrain computer wirelessly and in real-time via sensors. Today's systems are called "drive-by-wire," a term that, paradoxically, means there are no cables anymore. Years ago, the accelerator and cruise control were connected to the throttle via cables. Problems with other sensors such as the crank or cam position sensor, mass airflow sensor, and even the brake light switch.
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