Today-Drove to work at about 7am. No lights on- car runs fine maybe about 60 degrees out.


Get out of work around 1pm. about 75 degrees out, start up the car and battery and Brake Lights are both on- remain on for about 5 minutes[did not go off before driving home]. Drove 10 minutes home, lights still on. Cars reading just under 15v and tried disconnecting the negative terminal with car running, and car continued to run until I shut it off.


Car is a 2003 350z with about 60k on the odometer.


Lightly brushed clean battery terminals and lights are still on. (had a blue-ish substance on the negative terminal that came right off)
Battery is about 11-13 months old.

Any help is appreciated. Thanks!

 

Well if you have 13+ volts while the engine is running and it continued to run when you unhooked the battery (bad thing to do on new cars) then your alternator is still working.

14.4 is normal charging voltage on a 12v system.

That combination of lights is odd. Have you checked to see if it has any active or stored codes?

 

Have you checked your brake fluid? It could be low.

 

When mine was low I had the slip and VDC off lights on at the same time.

 

Brake Fluid is fine. I cleaned the negative terminal a second time and the lights went off. Im going to keep an eye on it but I appreciate everyones input. Thank you