Battery light and Brake light on
Asked by Trent1980 Jun 28, 2016 at 09:31 PM about the 2004 Nissan Sentra SE-R Spec V
Question type: Maintenance & Repair
I have a 2004 Nissan Sentra SE-R Spec V, 2.5. I replaced the battery and the alternator. Brake light and battery light still on. Battery reads 13volts when the car is off. Reads 15.4 volts when the car is on, making me think that the alternator is working. Could it be a ground, or fuse, or is there a way to reset the warning lights for the alternator. Battery was out of the car for 24 hours, and lights came right back on. Even reset check engine light just because ( it wasn't on in the first place). Any help would be much appreciated.
6 Answers
We have been driving it for 2 days now. Battery maintaining volts fine, and alternator still charging as far as I can tell.
Hey did you ever find a solution? I also have a 2004 Nissan sentra and this is happening to me right now ?
Looks like this still hasn’t been solved but i have an 05 sentra with the same issue, if anyone finds out the fix
Check your ground wire for your battery. They can be loose on the inner fender and turn the battery light on. After that check your brake fluid, it is a common reason for the park brake light to come on (fluid being low). Next try to trace your wiring from the alternator and make sure all the connections from alternator to battery, and battery to starter are tight as they can flag the battery light if there is a loose ground. If still nothing, try pulling your stereo out and making sure all the wires in the back are plugged in and tight. The battery light is often just a loose ground. Brake light is another story. Let us know if any of this works for you, it worked on my pickup!
Topped off my brake fluid and checked the ebrake wire and the brake light is still on... Any other suggestions?
My Sentra is an 02 with a 1.8. Had the same issue. After checking the Voltage at the alt and battery, checking the grounds, and the brake switch, I moved on to the fuse box. I found a 10 amp fuse for the horn was blown. Replaced it, and the brake and battery lights went off. Go figure. Sometimes the simplest thing can cause head scratching issues. Good Luck.
