Q: Electrical problem

asked by on

My car has an electrical problem. The lights aren't working, the windows won't open, and the fuel gauge isn't working.

Electrical concerns can often times be difficult to narrow down. It appears that your Mazda may have corrosion issues with its battery cables. It is not uncommon for the battery cables to develop corrosion near the battery terminals. Corrosion tends to spread rather quickly and can travel down inside the wires insulation and create resistance which prevents adequate power from reaching the components the battery powers. When this happens, symptoms such as the ones you describe with your Mazda 6 can definitely be duplicated. One thing you can try yourself is, while wearing safety gloves, opening the hood of your vehicle and locating the battery. Visually inspect the battery terminals and the wires coming off of them. If you see corrosion, then this is likely the reason your lights and gauges are not functioning properly. I recommend enlisting the assistance of a certified mechanic to come by and inspect your vehicle’s electrical system. They will have the experience and tools needed to identify the exact cause of your electrical issues. In most cases, they will simply be able to clean the battery posts and terminals so proper battery voltage can reach everything that requires power. If the problem is more severe, such as replacing bad battery cables or a faulty control module, they will be able to make the repairs needed to restore proper function all of your vehicle’s systems.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Electrical problem

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

Get a quote

What others are asking

Q: Pretty sure oil pump went bad while driving and now seized up.

If you over-revved the motor due to the transmission staying in first gear and then the oil pressure dropped, then you either had a rod or crankshaft break and seize the motor. It sounds like you had a transmission malfunction...

Q: Heater works intermittently, when not working car overheats and thermostat is new

Hi there. In most cases, when you have issues with the heater working and the vehicle overheating, it's caused by an obstruction of coolant inside the heater core. The cooling system circulates hot coolant / water into the heater core...

Q: Need to reattach the rear muffler

You can visit a local mechanic or take it to a local exhaust shop - whatever is best for you. If a bolt broke then it may be as simple as putting in another bolt, but I do not think...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...