My EPC and battery light is on in my 2012 Volkswagen Jetta and it will not start.

Epc battery light is on my Volkswagen Jetta 2012 turn over but won't start

My car has 10000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hello. This can be caused by a number of reasons. The EPC light will come on when the computer detects a problem within the power train system. This can be as easy as a bad sensor or a more complicated electrical issue. Retrieving any codes from the computer would be the first place to start to determine what the issue is. If there are no codes then further testing of the sensors would need to be done. You should have this testing done by a certified mechanic, like one from YourMechanic, that can come to you to [diagnose why the vehicle will not start] https://www.yourmechanic.com/services/car-is-not-starting-inspection

How to Identify and Fix Common car Problems ?

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EPC light comes on when there`s an issue with your throttle system. The Accelerator pedal, cruise control, throttle body, traction control. But if your battery is bad it could be a cause of the issue as well. First start with the battery and get that going and make sure the cable are good as well.
What is the EPC Light on Your VW? YourVolkswagen EPC light, also known as the Electronic Power Control warning light, is an indicator pointing to issues with your Volkswagen`s throttle system. This could mean that the throttle pedal, throttle body, traction control, or cruise control unit need attention.
Can a Dead Battery Cause the EPC Light To Come On? Yes. Your vehicle`s systems and sensors rely on a baseline voltage (which can vary depending on the sensor) to work properly.
However, we strongly advise you to have your EPC light fixed as soon as possible. When the Vehicle EPC light is on your dashboard, it means that there may be several limited functions in your car. Your car might lose power, could have engine damage, or limited brake or steering functions.
In normal operation, your vehicle`s Electronic Control Unit (ECU) is the “brain” of the car, enabling the engine, drivetrain, and other systems to operate properly. The EPC works in concert with the ECU to monitor functions, and if something goes wrong, the EPC flashes a warning light on the dash.
However, engine oil is crucial to a healthy engine and lubricated parts, so it`s possible an issue that has triggered the EPC light is caused by low oil.
The EPC Light

It`s letting you know you have an issue with the Electronic Power Control system or EPC. When the light comes on, you have an issue with your car`s throttle system. In many cases, the EPC light will come on at the same time as the Engine, ABS, or ESP light, depending on what the problem is.

EPC Light Meaning

If you see this light on your car, it means you`ve got an issue with: The throttle pedal. The throttle body. Your engine speed sensor.

EPC just means “Electronic Power Control,” could be like…. anything. Step one is replace the battery, since it`s bad anyway. Have AutoZone read the code when you pick the battery up and make sure it`s not something serious. If the new battery dies, your alternator is gone.
Much like any dashboard warning light, there can be a variety of problems that will cause this light to turn on. Chief among them are malfunctions in the throttle body or the engine speed sensor, a faulty mass air flow center or brake light switch or failing traction control or cruise control.
An EPC rating is based on how much energy your property uses per square metre (eg for heating, light and so on) and how much energy it loses (eg through poor insulation). The assessor will first calculate the property`s Standard Assessment Procedure (SAP) score and then use that to determine the EPC rating.
The throttle body is an air metering device mounted between the air filter and snorkel, and the intake plenum. Within the throttle body is a movable throttle plate whose position controls the amount of air that enters the engine to determine engine speed.
Cars that have an ECU (engine control unit) can sometimes lose power if the system detects a mechanical error in the car that doesn`t actually exist. As a result, the ECU tells the car to lose power, or in some cases stop completely, to prevent an accident.
Your EPC light is a warning that one or more computer-controlled systems in your car have malfunctioned or failed. These systems can range in severity and purpose greatly. It may be your cruise control system that has stopped working, or it may be essential engine systems like the crank position sensor.
In some cars, a yellow check engine light means there is a problem that needs to be investigated and a red or flashing light means there is a serious problem and you need to stop right away. Your gauges will help you to determine problems like overheating and low oil pressure.
Also known as `limp home mode`, limp mode is a security feature, which is activated when either a vehicle`s engine control unit or transmission control unit detects a fault. It is designed to protect the engine and transmission from catastrophic damage or complete failure.
Engineering, Procurement and Construction (EPC) firms deliver a complete package of resources to complete infrastructure projects. EPC services typically provide a single responsible source for executing a project, thus alleviating risk for the owner.
As we pointed out at the start, EPC stands for engineering, procurement and construction, and for many businesses in the oil and gas industry and others, it`s a highly effective turnkey solution to move product to market.
An air filter that isn`t changed on a regular basis will become contaminated with dirt and debris. This prevents the proper amount of air from entering the engine. In extreme cases, a contaminated air filter can turn on the check engine light.
Starting Trouble

A malfunctioning mass airflow sensor can also make it difficult to start your automobile. This can be due to the air and fuel in balance in the combustion chamber or because the main computer chip has received an error code from the sensor and does not want to start your car.

A contaminated or failed mass air flow sensor cannot measure the amount of air flow correctly. This causes the engine computer to miscalculate the amount of injected fuel, causing additional damage to your engine.
By taking advantage of off-peak energy rates and releasing stored heat throughout the day, they can help to reduce energy costs and carbon emissions.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

2005 Chrysler 300C changed battery and alternator. Car started, ran, and then battery light came on. Shut car off and wouldn’t start.
ANSWER : Hi. There is a couple of things that could be wrong here. The battery or alternator that was just installed could be defective. Theses parts need to be tested for proper operation. There also could be a fuse, fusible link, or wiring for the battery or charging system that is blown or broken causing the battery light to come on.

The codes that you have will cause the car to shut down, run rough, or not start at all. The crankshaft sensor and camshaft sensor should be replaced. I suggest having a certified technician from YourMechanic come diagnose the charging system and check engine codes to help you proceed with correct repairs.

Fuel pump engages. Batery good, alternator good volts, jump start helps when wont start. Temp does not matter. Intermittent?
ANSWER : Hello. Thank you for writing in. There are several reasons your vehicle may only start when jump starting. The first and most common is a build up of resistance that is causing you to need a boost of voltage to get the engine started. This may be due to poor battery cables, a bad ground connection, a poor starter solenoid, and a couple of other issues. The first thing you want to do is perform a visual inspection of the starting system. Make sure there is no corrosion build up in the battery cables. You can also check the resistance across these wires and make sure you have a solid connection between components. You then want to make sure the starter solenoid is doing its job. It is responsible for taking the small amount of electricity sent by the ignition and turning it into a huge electrical charge that is strong enough to push over the engine with the help of some gear ratios in its favor. Do some more testing, and stick to the basics before assuming its something seriously complicated.

Battery light came on went and bought a new battery battery light comes on about 1 minute after starting car.
ANSWER : The alternator on this vehicle is computer controlled and if the alternator is not communicating to the computer then it may default to a set charging rate that will show up as good when testing using standard methods. The computer and charging system needs to be tested using a scanner that is compatible that can check and test charging rates. You most likely do have a bad alternator on the car.

in my car battery warning light appearing while driving.so I have replaced both battery and alternater still light is on
ANSWER : As you may yourself have seen, there are many reports of this fault with the Civic, that is a battery or alternator is replaced only to have the warning light fail to extinguish despite checking every conceivable electrical possibility. Your only recourse is to have a certified mechanic go through that exercise with your car and that involves first attempting to "re-set" the light. If the warning light returns, the alternator output has to be carefully measured both loaded and unloaded. All terminal connections have to be verified including all grounds. Fuses have to be checked for integrity (continuity) and the possibility of shorts, in for example dash wiring, has to be checked. To request this repair, simply request an electrical components diagnostic and the responding certified mechanic will seek a resolution to this.

Car won’t start. The check engine light, battery light, and oil change light are coming on. I tried jumping the car and nothing happened. Why won’t my car start?
ANSWER : Hi and thanks for contacting Your Mechanic. If sometimes your vehicle will start with the new alternator and sometimes it won’t, then there is a loose connection in your charging system. Check all of the wires to the alternator and to the battery. Make sure that the battery cables are clean and tight. Make sure that the wires to the starter are clean and tight. A loose ground to the ignition system will cause the vehicle to not crank over. Check all of the ground wires from the battery to the starter. Make sure that they are clean and tight. If you need further assistance troubleshooting your no start situation, then seek out a technician, such as one from Your Mechanic, that can assist you.

My EPC and battery light is on in my 2012 Volkswagen Jetta and it will not start.
ANSWER : Hello. This can be caused by a number of reasons. The EPC light will come on when the computer detects a problem within the power train system. This can be as easy as a bad sensor or a more complicated electrical issue. Retrieving any codes from the computer would be the first place to start to determine what the issue is. If there are no codes then further testing of the sensors would need to be done. You should have this testing done by a certified mechanic, like one from YourMechanic, that can come to you to [diagnose why the vehicle will not start] https://www.yourmechanic.com/services/car-is-not-starting-inspection

Vehicle won’t start, once it’s jump started it only stays running until you turn it off, then it work start again without jumping.
ANSWER : Hi there. There could be two problems here. It is possible that your battery is bad and will not take a charge from your alternator while driving. In that case every time you shut your car off you will not have enough juice to start it again. Inspect your battery – it should have at least 12.5 to 13 volts to start your car, if it doesn’t you will need to replace the battery. The second problem could be that your alternator is bad and not charging your battery, in this case you will need to replace your alternator. Both the battery and the alternator can be tested in your car. If you would like to have the car checked for you, a certified professional from YourMechanic can come to your car’s location to diagnose the starting problem and proceed with repairs.

Battery light goes on when I start car then turns off, if I rev engine light comes back until rpms go down. Abs goes comes on/off
ANSWER : Batteries can die due to faults in the charging system so ideally a suspected "faulty" battery should be load tested before a decision is made to condemn it. The only exception to this rule is if the battery is already clearly "old" (greater than 5 years) but even then once you put a new battery in, as a replacement for a "dead" battery, you have to comprehensively check out the charging system. Diagnostic Trouble Code P0460 will result in disruption of the dashboard fuel gauge’s ability to accurately report your tank’s fuel levels. The fuel gauge readings may be erratic, or read somewhere off scale. Vehicles equipped with a low fuel warning light feature may also suffer from erratic low fuel warnings in the event of a code P0460. Unless the P0460 code has been reported alongside other trouble code, all of the vehicle’s essential systems should otherwise function normally. I would recommend that you request a check engine light diagnostic to first resolve the fault causing the P0460 code to set. The check gas cap light warning light could be due a faulty gas cap and/or small leaks in the EVAP system.