Your vehicle's systems and sensors rely on a baseline voltage (which can vary depending on the sensor) to work properly. Can a Dead Battery Cause the EPC Light To Come On? Especially when we're talking about the cooling system, emissions, transmission, and other major systems, one problem can quickly multiply and turn into a series of problems if you don't get the initial problem addressed right away. It's what's known as "error-tolerant design" and is intended to prevent the user from being able to do too much damage. 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.
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