Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. What Does the Electronic Power Control (EPC) Warning Light Mean?

What Does the Electronic Power Control (EPC) Warning Light Mean?

What Does the EPC Warning Light Mean?

Computers are taking over everything on your vehicle. Traditionally, components like the steering, the parking brake, and the gas pedal used to require mechanical linkages. Nowadays, computers and electric motors can take care of all of these functions and more.

Electronic Power Control (EPC) is a computerized ignition and engine management system. It is used by other systems on the car such as stability and cruise control. Any faults with the EPC will likely disable other functions on your vehicle so it is important to keep the system maintained and functional. A warning light on the dash will let you know when an issue has been detected in the EPC system.

What the EPC light means

Since the EPC is used on multiple other systems on the vehicle, it is likely that other warning lights will be illuminated on the dash as well. Typically, the stability control and cruise control will be disabled and their respective lights will be illuminated as well. The check engine light may also come on to show that the engine itself isn’t operating at normal efficiency. To try and protect the engine, the computer can limit the vehicle’s throttle and the car may feel sluggish as a result.

You will need to get the car scanned for trouble codes that can be used to identify the problem. Once repairs have been done and the codes cleared, everything should return to normal.

Is it safe to drive with the EPC light on?

Like the check engine light, the severity of the problem can vary greatly. If this light comes on, you should have the car checked out as soon as possible to prevent any significant damage from occurring. If your vehicle is limiting your throttle to protect the engine, you should only use the vehicle to take it to get repaired.

Common issues with your car’s EPC are malfunctioning sensors which just need to be replaced. However, the issue can be more serious so don’t hesitate and have your vehicle checked out as soon as possible. If your EPC warning light is on, our certified technicians are always available to help you diagnose any problems that may be present.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

Symptoms of a Bad or Failing Flexible Clutch Hose
Common signs include difficulty shifting, low clutch fluid, and feeling no resistance at the clutch pedal.
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...


Related questions

Q: My abs light came on after I got my wheel bearing fixed.

Hi there. Check the wheel bearing to see if the wheel speed sensor was plugged in. Those indicator lights will come on when the sensor is left unplugged. As for the engine having a misfire, check the spark plugs and...

Q: Warning lights coming on and car bogging down.

Your 2009 CC has a number of issues that come up often. When the Service Engine light comes on this will also turn on the EPC light as the computer cannot control the electronic power control (EPC) system. A computer...

Q: All dash lights were on for two days and now there is no power, no crank, and shorts when jumping.

If you were able to start and drive the vehicle for two days with all the warning lights on before this, did you notice any other issues during this time? You are going to want to start by replacing the...