Charging problems


Asked by Apr 30, 2015 at 10:44 PM about the 2001 Honda Civic EX

Question type: General

Replaced alternator and battery charging is only around 9 to 10 volt from alternator to
battery when the engine is reved up volts drop. And if head lamps are turned on it dies.
With engine running with battery terminal off still only 9 to v's from battery. And battery
only 9 to 10 v's got to boost every time. This is alternator #2 and battery #2 why would
volts be so low. ? Has new terminals.

3 Answers


Hate to say this,but it is another bad alternator,alternator should push,13.5 amps and your battery should have a constant 12 volt,s,if you keep having and issue of burning up alternator,s,you may need to have the cable,s and wire,s ohmed to make sure there are no break,s in them.


I did check the ground the ohms were good. Was wandering about the starter because was thinking even at 10 volts it would do more than just click like it was very low. What's your thought on that?


Check to see if yours is a Honda Dual Mode charging system, if it is the fault could be in the ECM not turning on the high mode just after starting then switching to low mode when battery reaches acceptable voltage. There have been known faults with the ELD unit having poor solder connections. This of course is assuming that all of the main voltage connections are clean and in good repair and the ground pathways are also good. FYI. Never disconnect the battery with the engine running, doing so causes a voltage spike that can destroy electronics. I had a customer that did that on a Crown Vic and by the time we had fixed everything that was fried it cost him 1500 bucks.

1 of 1 people found this helpful.

Your Answer


Looking for a Used Civic in your area?

CarGurus has 51,346 nationwide Civic listings starting at $1,200.


Honda Civic Experts

  • #1
    Tom Demyan
  • #2
    Jonathan Ford
  • #2
    Takoda Fraser
View All

Related Models For Sale

Used Honda Accord
553 Great Deals out of 91,967 listings starting at $1,495
Used Toyota Corolla
678 Great Deals out of 66,255 listings starting at $1,599
Used Honda Civic Coupe
103 Great Deals out of 10,323 listings starting at $750
Used Toyota Camry
807 Great Deals out of 71,624 listings starting at $1,400
Used Honda CR-V
569 Great Deals out of 66,216 listings starting at $1,800
Used Nissan Altima
789 Great Deals out of 67,229 listings starting at $750
Used Hyundai Elantra
395 Great Deals out of 44,745 listings starting at $495
Used Honda Accord Coupe
99 Great Deals out of 4,300 listings starting at $800
Used Ford Focus
397 Great Deals out of 70,146 listings starting at $999
Used BMW 3 Series
900 Great Deals out of 32,982 listings starting at $1,300
Used Nissan Sentra
495 Great Deals out of 50,228 listings starting at $599
Used Hyundai Sonata
362 Great Deals out of 50,267 listings starting at $1,300

Used Cars For Sale

2018 Honda Civic EX For Sale
9,179 listings starting at $18,492
2017 Honda Civic EX For Sale
5 Great Deals out of 622 listings starting at $15,950
2016 Honda Civic EX For Sale
8 Great Deals out of 433 listings starting at $12,991
2015 Honda Civic EX For Sale
16 Great Deals out of 1,370 listings starting at $10,499
2014 Honda Civic EX For Sale
9 Great Deals out of 376 listings starting at $9,490

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.