Q: Battery light

asked by on October 06, 2016

Battery light came on. Car also shut off. But started right back up. Car battery had dead cell in it. Replaced battery. Had alternator checked, it's good. But battery light still comes on and still shuts off. What other thing can I do to fix the problem? My car has an automatic transmission.

Battery Light is on Inspection $79.99 - $89.99 Get a Quote

Hello, thank you for writing in. The charging system is controlled by the PCM (powertrain control module). The module receives input information to keep the electrical system operating, if the voltage goes below 9.0 volts the light will come on and causes the module not to operate producing a stall condition. To test this, you have to have the issue happening at the time. There is test equipment that has to be used-- you can find information about that and servicing it in our article here. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect this light for you, and make or suggest any repairs as needed.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

how to fix the cvt transmission

The parts required will depend on exactly what has failed and that, of course, is determined through both a diagnosis and an inspection upon disassembly if it turns out that the transmission has to be rebuilt. Your car has enough...

can i use a 4L60E THAT CAME OUT OF A TRUCK WITH A 5.3 MOTOR AND CHANGE THE FRONT SHAFT OR IS THERE A WAY TO MAKE IT WORK

Hi Robert. Thanks for sending your question today, however, we're not really best to help you in this situation. We focus on only answering OEM service and maintenance tips, so you would be better served to seek the advice of...

Car overheating; thermostat

Hello! A common reason for most vehicles to overheat is a faulty thermostat. However, on 350Z's, the factory fans are known to fail prematurely and cause an overheating scenario. I suggest checking the performance of the cooling fans and thermostat....

Oil Change timing

Your vehicle has an on board, computerized oil life indicator system. When the system determines that an oil change is actually needed, the oil life indicator will provide a maintenance message (see your Owner's Manual for further and complete details)....

Audi 2006 A6 Bi-Xenon dynamic headlight shutter malfunction

If this is a solenoid activated device, test the solenoid (winding resistance in ohms, function, etc.). If the other side functions, you can compare the results. The code seems to suggest you will find infinite resistance in the winding of...

Tachometer is not moving at all

Hello. If the fuse is okay, then the next thing I would look at the wiring. Most tachometers get their signal from the crank sensor or ignition module and will malfunction if there is an issue with the signal. I...

Headlights don’t always work, what’s the problem?

The headlights in your vehicle are high intensity display (HID) and work differently than the old-style headlight bulbs. These HID when they start to go bad will either start to dim or will blink on and off. The fix for...

Rear differential yoke leaking

If the seal rides on the shaft of the yoke, the yoke would be removed anyway to replace the seal, so there would be no extra labor to install a new yoke were the yoke worn. If the play is...

Doors wont lock or unlock with fob or switch?

Hello. Further testing should be done to help solve your problem. Being that the door unlock reprogramming procedure has already been done and the fuses have been checked there's not much left it could be. When you hit the unlock...

Related articles

The Best Used Cars to Buy If You're a Carpenter
If If you're a carpenter, and working for someone else, the best used car is whatever you like that gets you to work on time and holds your tools – in short, practically any used car will do. If you...
A Buyer’s Guide to the 2012 Chevrolet Volt
Whether Whether you’re concerned about the environment or just want a vehicle that allows you to use less gas, the 2012 Chevrolet Volt might be just right for you. Designed to run entirely via an electric current, this electric hybrid...
2012 Toyota Tundra vs. 2012 Chevrolet Silverado: Which One Should I Buy?
Large work trucks are meant for one thing: work! These vehicles are rough and ready, and can handle nearly anything you throw at them, with the exception of a car pool. While they offer two or four door options, you...