You are driving your car and suddenly the EPC light is displaying (often together with the engine light) on your dashboard.
Will it damage my engine? Is it dangerous to drive with? How much will it cost to repair my car?
We are getting a lot of different questions about the EPC light from our customers and therefore we decided to write an answer once for all about this warning light.
In this article, you will learn everything you need to know about the EPC light to fix it.
What does the EPC light signify?
The EPC light indicates that there is an issue with the Electronic Power Control (EPC) System. The issue is often related to your throttle control system, but it may also be a problem related to your traction or cruise control system.
The Volkswagen EPC light often shows up together with the Engine, ABS or ESP Light depending on where the problem is located.
There are several different car models and brands equipped with the EPC system, especially Volkswagen cars because the system is manufactured by them.
Volkswagen owns a lot of different car brands and because of this, you may also find the EPC light in your Audi, Skoda or Seat.
What is causing the VW/Audi EPC light to come on?
The EPC light often shows up with other warning lights and because it’s integrated with a lot of different systems, it’s hard to just guess where the problem is located.
The EPC light also often causes your car to go into “Limp mode“. Limp mode will restrict the functions in your engine control unit, such as limited RPM, low power, etc.
If you want to learn more about the Limp mode, you can check out this article: Limp Mode.
- Throttle body failure
- Bad ABS Sensor – Common on newer VW Passats
- Failed brake pedal switch – Common problem on Golf 4 & Fabia
- Bad ABS Ring
- Bad ABS sensor wiring
- A failed brake pressure sensor (Inside the ABS Module)
- A Bad Engine Sensor
- Internal engine problem
- Power steering failure
- Steering wheel sensor
- Wiring issues
How to fix the EPC light
The easiest and fastest way to find the problem when your EPC light appears is to read the trouble codes from your car with an OBD2 Scanner.
When the EPC light is on, it means that there are one or several trouble codes stored in one of your control units. You have to scan the engine control unit, ABS control unit, steering control unit and transmission control unit for any stored trouble codes.
You can either drive your car to a mechanic workshop and let them read your trouble codes, or you could to it at home with your own OBD2 scanner.
The cheapest diagnostic scanners are only able to read the engine control unit, and because this problem could appear in several control units, it’s recommended to either get a more advanced scanner or let a workshop read the codes from the other control units.
Is it dangerous to drive with the EPC light on?
You should always fix your EPC light as soon as possible. When the EPC light is on, it means that there may be several limited functions in your car.
Due to the fact that the EPC light is integrated with the steering and the brake system, it could not only cause engine damage, it can also cause serious accidents because of limited brake or steering functions.
When the EPC light appears on your dashboard, you should drive to your closest mechanic workshop to take a look at it as soon as possible.
The EPC Light is often limiting your cars engine power and other functions to drive slowly to the closest mechanic workshop without issues.
In most cases, the EPC light won’t cause damages to your car if you are driving carefully – but there is a chance that the problem is more serious and it’s better to be safe than sorry.
- The EPC light indicates that there is an issue registered with the Electric Power Control (EPC) system.
- You should always visit a workshop as soon as possible and not just ignore the problem when the light occurs.
- The EPC light is integrated with a lot of other control systems in your car.
- It may cause loss of the ABS and EPS system and cause accidents if not fixed as soon as possible.
- To fix an EPC light problem, you should always connect an OBD2 scanner and check the trouble codes that are stored in the system.
- The Electric Power control system is made by VAG and the EPC light is not integrated with other manufacturer’s cars. (Only if the car is using VAG’s system).
If you want to find more dashboard signs, you can check out the article Dashboard Warning Lights.
Hello I’m Magnus, the owner and the writer of this website. I have been working with cars since I was 16 and I’m specialized with in-depth Automotive diagnostics. Also been driving drifting for the last 6 years. I’m here to give you answers to all your automotive questions and I hope that you enjoy our content.