My battery light is on

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
Let us know what you find.

Joe
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Tuesday, August 25th, 2020 AT 12:03 PM (Merged)
Tiny
BRYAN C.
  • MEMBER
  • 4 POSTS
  • 2003 HONDA ACCORD
  • 3.0L
  • V6
  • FWD
  • AUTOMATIC
  • 148,000 MILES
Driving home from work the engine light and battery light both went on, then ten minutes later all dash lights went on then the car started sputtering until arriving home. Pulling into the carport the car just shut off and could not get it to start up again. Headlights still go on but the radio displays to reset the five digit code.
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Tuesday, August 25th, 2020 AT 12:03 PM (Merged)
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Seems as if the charging system has stopped charging and the residual battery charge is all the car has to run on. Have the battery charged completely and then test the alternator. Voltage should be 13.5+ volts with the engine running.
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Tuesday, August 25th, 2020 AT 12:03 PM (Merged)
Tiny
BRYAN C.
  • MEMBER
  • 4 POSTS
I will do that in the morning, will O'reilly auto parts be able to check the alternator for me?
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
They can but you would have to remove the alternator and bring it to them or drive the car over there. If it is not charging I would not drive it over there. Use a multi meter to check the voltage when you get the battery charged and tested then check the voltage at the battery with the engine running.
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
BRYAN C.
  • MEMBER
  • 4 POSTS
Thank you very much for the answers. At least now there is light on what the problem could be.
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Your welcome most likely it sounds like your alternator went bad.
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
DAKOLLEGEKID
  • MEMBER
  • 2 POSTS
  • 2003 HONDA ACCORD
  • 18,000 MILES
I took my car to Auto zone and they did a test on the battery and the alternator, and both came out fine. The battery light is on in my car, but everything is working just fine. Could this be a sensor or a fuse problem?
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
JACOBANDNICKOLAS
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If the alt is good and the battery too, check the fuseable link between the alternator and the battery.
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
DAKOLLEGEKID
  • MEMBER
  • 2 POSTS
How do you locate the link?
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
The link is a wire between the alt and the battery.
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
LOVCHUC
  • MEMBER
  • 1 POST
  • 2002 HONDA ACCORD
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
Hi, my lights dim and all power gets low when idling, especially when compressor comes on.I replaced the altenator but it hasn't seemed to make a big improvement.I have 14.6 volts when I first start the car but it gradually decreases as it runs. It will drop to 10 volts when the compressor kicks on after running a while. What is going on with this thing?
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
It sounds like you may have gotten a bad alternator. Have you had it checked under a load?

Also, check all battery connections and the grounds. Make sure they are clean and tight.

Let me know what you find, and thanks for using 2carpros. Com.

Joe
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
VCAW
  • MEMBER
  • 1 POST
  • 2003 HONDA ACCORD
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 111,400 MILES
Hi, 2003 Honda Accord LX, my battery light has been flashing on and off for a while. I know I have an electrical issue due to inappropriate alterations done to the car by the previous owner. However, lately right after taking the car to the my mechanic when the car is hot it won't cut on at all. All electrical stuff come on. Windows roll down, ac/heat come on if already on(which isn't that often) Lights come on nice and bright. But car won't turn on. I've been told to go change my battery, fill up my coolant (which doesn't solve anything), it maybe a sensor or it maybe the starter. What do you think it could be?
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)
Tiny
F4I_GUY
  • MECHANIC
  • 3,302 POSTS
If the battery light is on or flashing, it's a charging system issue. It's either the alternator, or one of the power cables on the vehicle is is providing a weak connection.
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Tuesday, August 25th, 2020 AT 12:04 PM (Merged)

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