i noticed that my dash lights dim slighlty when my headlights are on and brake at the same time. anyone experience that problem? i started up my car, then i hooked it up to the battery tester, turned headlights on and start pressing the brake pedal. noticed that the gauge was jumping when i stepped on it to red or undercharging. Let go the brakes back to green. it only goes to red when i stop on it and it goes back to green that i noticed. i disconnected the brake lights, one at a time to see if there is something wrong with the connection. it was slightly better disconnecting one side but was still jumping into the red area. i was thinking its the underdrive pulley that i have...you guys think that might be the possibility? i'm going to put back the stock one next week to see what happens. i will check my alternator as well during the weekend, but if any of you have suggestions..let me know..thanks

 

Probably the battery: http://forums.maxima.org/showthread.php?t=434797