Battery light always on - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Juantwo3 · 08-23-2014, 07:19 PM

I had this problem as well about a year ago when the battery light is on check the voltage when the car is off and both terminals disconnected should be at 12 volts. test OK?

then put terminals back on and start the car check voltage again should be 14 volts.

if everything is ok battery is holding charge and alternator is charging then there might be an issue with the voltage regulator in the alternator. at that point just replace the alternator

08-23-2014, 07:19 PM	#4
Juantwo3 Zilvia FREAK! Join Date: Sep 2011 Location: DTFullerton Age: 34 Posts: 1,103 Trader Rating: (20) Feedback Score: 20 reviews	I had this problem as well about a year ago when the battery light is on check the voltage when the car is off and both terminals disconnected should be at 12 volts. test OK? then put terminals back on and start the car check voltage again should be 14 volts. if everything is ok battery is holding charge and alternator is charging then there might be an issue with the voltage regulator in the alternator. at that point just replace the alternator __________________ GO DUCKS!!!!!!!!!