Skip the auto shop - Our mechanics make house calls

Q: Charging system light on

asked by on

I hear a clicking sound when trying to start my car. It won't start. The charging system light was on.

A: Hi there. There is a possibility that your ...

Hi there. There is a possibility that your alternator or charging system may have experienced a failure. In the case of a charging system failure, the battery’s charge cannot be kept and the battery drains during vehicle operation. Once the battery is dead or has a very low charge, there may not be enough juice in the system for components to operate normally. Have a technician inspect the battery and replace it if necessary. The charging system must be inspected and repaired before continued use of the vehicle, as a dead battery can ruin a new alternator. Vice- versa, a new battery will start a vehicle and run for some time, but with a malfunctioning alternator, the battery will be drained and can damage the battery.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

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: Car won't shift out of park

It is quite possible that your shift lock solenoid may have failed. This solenoid prevents the shifter from being moved without the brake pedal depressed. Often times you can hear a slight click noise from under your shift lever when...

Q: Need to know if my alternator is bad.

Hey there, thank you for asking about your 2005 Chevrolet Silverado 1500. Disconnecting the battery while the vehicle is running can damage the Powertrain Control Module (aka, vehicle "brain" or "engine computer") or other electrical components due to voltage excursions...

Q: Truck not starting - 2002 Chevy Trailblazer

Hello there. There are many faults that can cause your 2002 Chevrolet Trailblazer to crank but not start. The most common causes of a no start condition is the battery, starter, battery cables, ignition switch, fuel pump, wiring harness fault,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...