10 volts when key is "on" position - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Stunt'nSlide · 03-15-2012, 08:38 PM

when my car is completley off the battery has 12 volts. when I put the key in the "on" position it's only at 10 volts. is that normal?

KOME · 03-15-2012, 08:42 PM

Your battery should be at 12.6 volts minimum to start with.

But not entirely sure on your question. It depends on what loads start to engage when you turn the switch.

Also, you didn't exactly say if it's causing a problem or not.

Stunt'nSlide · 03-15-2012, 08:47 PM

Quote:

Originally Posted by KOME

Your battery should be at 12.6 volts minimum to start with.

But not entirely sure on your question. It depends on what loads start to engage when you turn the switch.

Also, you didn't exactly say if it's causing a problem or not.

well my car has a hard time starting. but even before that my car had really bad idle and is throwing code 13, 21, and 32. I was checking the voltage on the ignition coil when the key was on and it only said 10.2 volts so I checked my battery and it said 10.2 volts also. but when I turn the key off my battery has 12.9 volts

Superaison · 03-15-2012, 08:49 PM

try another battery?? yours maybe going bad

mr2thomas · 03-15-2012, 09:02 PM

sounds like yours is bad. Basically with key on, you open a circuit but your battery is so weak it experiences voltage drop.

03-15-2012, 08:38 PM	#1
Stunt'nSlide Zilvia Junkie Join Date: Oct 2010 Location: nor cal Posts: 310 Trader Rating: (-1) Feedback Score: -1 reviews	10 volts when key is "on" position when my car is completley off the battery has 12 volts. when I put the key in the "on" position it's only at 10 volts. is that normal?

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03-15-2012, 08:42 PM	#2
KOME Zilvia Addict Join Date: Dec 2010 Location: En mi casa Age: 34 Posts: 619 Trader Rating: (7) Feedback Score: 7 reviews	Your battery should be at 12.6 volts minimum to start with. But not entirely sure on your question. It depends on what loads start to engage when you turn the switch. Also, you didn't exactly say if it's causing a problem or not.

03-15-2012, 08:49 PM	#4
Superaison Leaky Injector Join Date: Jun 2011 Location: Ohio Posts: 131 Trader Rating: (0) Feedback Score: 0 reviews	try another battery?? yours maybe going bad

03-15-2012, 09:02 PM	#5
mr2thomas Leaky Injector Join Date: Sep 2009 Location: Stanton, CA Age: 33 Posts: 55 Trader Rating: (1) Feedback Score: 1 reviews	sounds like yours is bad. Basically with key on, you open a circuit but your battery is so weak it experiences voltage drop.