Skip the auto shop - Our mechanics make house calls

Q: My alternator is overcharging to about 14.8-15 volts. Can that cause other warning lights to come on?

asked by on

My alternator is overcharging to about 14.8-15 volts can that cause other lights to come on,like the ABS sensor ,parking brake light ,and it took away my traction control of.pls help

Hi. Yes, in a lot of cars when the battery is low or the charging system is malfunctioning, the ABS Light, Brake Light and the Traction Control Light will come on. This happens because these systems must have the correct battery voltage for them to operate properly. These lights coming on is just another indicator that the battery or charging system needs to be checked and fixed so the car will operate properly.

I suggest you have a certified technician, such as from YourMechanic, come to your location to replace your alternator and check your car for any other issues.

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!
  • Home
  • Questions
  • My alternator is overcharging to about 14.8-15 volts. Can that cause other warning lights to come on?

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: ABS light and brake lights are on all the time

This indicates there is a problem in the Anti-Lock Braking System (ABS). In this system, the VSA modulator control unit monitors wheel speed via sensors. If from the sensor signals the module determines wheel lockup is about to take place,...

Q: Belt shredded after repair

The pulleys and a/c would have to be checked for one or more being seized up causing the belt to shred. I have seen the a/c pulley bearing seize and tears up the compressor. I have also seen the tensioner...

Q: Check engine light on & car delays

If all of these trouble codes are related to the throttle body, I would recommend having your vehicle's throttle body inspected by a qualified mechanic who is proficient at engine diagnostics. This inspection would check the throttle body for any...

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...
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...