Battery and brake light on

Asked by Jan 14, 2017 at 12:26 PM about the 2004 Nissan Altima 2.5 S

Question type: Maintenance & Repair

Battery and brake light turned on I
replaced the alternator because it was
burnt out but the lights still stayed on not
having any more problems like before the
lights just don't turn off any help would be
appreciated thank you

2 Answers

455

Is the new alternator showing the correct voltages? Not too high or SLIGHTLY too low? Follow the wire from the alternator to the battery, or use panel if you can and look for a break in the wire. Ive had this happen twice, one was a bad wire, I imagine was damaged when they replaced the alternator, one was a bad replacement alternator. I believe it also runs a wire to the dash itself that can go bad, wiring issues suck, if the battery is charging and checks out, honestly I'd cover the light with some electrical tape or ignore it.

455

..also have the battery tested, if the alternator was bad it may have taken the battery with it.

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