Dashboard lights are called “telltale lights” because they give the driver an idea about what’s wrong with the vehicle. If you own a Volkswagen, Audi, or Porsche, it probably has an electric power control (EPC) warning light. Find out what this light means, its causes, and what to do once it turns on.
The EPC light is exclusive to vehicles under the Volkswagen Audi Group (VAG).
What Does an EPC Light Mean?
The electric power control light triggers when there’s a problem in the electronic power control system. It monitors the vehicle’s throttle and ignition as well as its electronic stability and cruise control.
When the ignition is switched on, the (ECM) checks the electronic throttle control system for circuit integrity and communications. During this test, the instrument cluster EPC warning light is illuminated.
If no malfunction in the electronic throttle control system is detected, the EPC warning light is extinguished immediately after the engine starts.
In the event of a malfunction while the engine is running, the ECM will activate the EPC warning light and a diagnostic trouble code will be stored in the ECM memory. The code will depend on the issue that was detected.
Depending on the problem, other warning lights can illuminate at the same time as the EPC, like the check engine light, anti-lock braking system light, and electric power steering lights.
The EPC could also put the vehicle in “limp mode” to protect the engine from further damage. When this mode is activated, less crucial systems like the air conditioning system will function less. It also reduces the engine’s power.
What an illuminated EPC warning light means and operates might vary depending on the vehicle. For example, the electronic stability control (ESP) system might shut down entirely on some Volkswagen vehicles when the EPC program detects something is wrong with the EPC management system.
Is It Safe to Drive with the EPC Light On?
No, it’s not. So while it’s technically possible to drive your car while its EPC light is on, it isn’t advisable.
Various problems (both major and minor) can cause this light to illuminate. Some of the causes of an EPC light can be as bad as a throttle body failure and a malfunctioning ABS sensor.
If you ignore this warning light, you’d risk damaging your engine in the long run. So take your ride to an auto repair shop right away once you see that it’s on. It’s the easiest way to ensure the problem is properly identified and fixed.
Diagnosing Issues Related to the EPC Light
If you’re a skilled DIYer, you might be able to diagnose this problem on your own. An OBD scanner can help you pinpoint the issue. It will register a trouble code that can assist you in determining which component is causing the problem.
But because numerous issues can cause the EPC light to illuminate, it might be difficult to diagnose the problem. For example, a coil pack problem and a dirty fuel injector have reportedly triggered the EPC light on a 2012 Volkswagen GLI. If you’re not sure about anything, talk to a trusted mechanic.
Aside from the EPC light, it’s crucial to familiarize yourself with other warning lights on your dash. Remember that these lights can speak volumes about your car’s overall health.
Get New Throttle Bodies or ABS Sensors Online
It’s normal for components like throttle bodies or ABS sensors to fail after a certain period. When they do, your vehicle’s electronic power control (EPC) light will illuminate on your dashboard. Aside from this light, your vehicle might manifest other engine and brake-related symptoms, such as stalling or uneven brake pad wear. Luckily, you can easily get replacement parts here at CarParts.com.
CarParts.com is a one-stop shop for aftermarket parts, including throttle bodies and ABS sensors. Use our vehicle selector and enter your vehicle’s year, make, and model to see only parts that fit. Our parts are sourced from only the best manufacturers in the industry. We also have strategically located warehouses around the US, which means we can deliver your order in as fast as two business days.
What are you waiting for? Shop for a replacement throttle body or ABS sensor at CarParts.com today!
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