Question about 1989 Nissan 300ZX

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1993 300zx Battery Drain

My 1993 300 has an internal battery drain. I bought a new battery and put it in on Saturday. By Monday, it won't turn over. Could this have something to do with the alarm system ??

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Very easily could. Common for it to be the alarm system. What you want to do is take a multi-meter, and disconnect the negative battery cable. Now with the car off, all lights off all keys out etc, put one lead of the multi meter on the negative post of the battery and one of the clamp that is supposed to be on the negative post. With the multi-meter set to amps dc it should read some sort of reading. Some drain is normal due to the computer. Now shut off the alarm, or pull the fuse, there should be a switch under your dash. The draw should go down signifigantly if it is the alarm. If i recall correctly it should be about 1 amp being drawn at rest. Hope this helps.

Posted on Mar 09, 2009

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